CATALOG
PROCESS MEASUREMENT TECHNOLOGY
SIPAN LIQUID ANALYSIS
DW
PW
HACH LANGE services.
Wastewater.
Made-to-measure solutions for
wastewater analysis in the
municipal and industrial sectors.
Ordering, information and advice:
[email protected]
Drinking water.
Assured safety — analysis for
suppliers and consumers.
Process water.
Process and laboratory analysis for
special analytical problems and
production conditions.
Seminars and workshops:
further training and exchange of
experience for analysis in practice.
On-site support by our technical
field staff.
Quality assurance, complete with
standard solutions, instrument checks
and test solutions.
www.hach-lange.com
up to date and secure, with downloads,
information and shop.
Assurance of legal compliance, together
with environmental protection through
collection of used reagents.
Reliable operation of all instruments
thanks to flexible service and
maintenance contracts.
Regular customer information by post
and email.
SIPAN 32 and 34
Controllers and Sensors for pH, Conductivity and O2
HACH LANGE GMBH
Willstätterstraße 11
D-40549 Düsseldorf
Tel. + 49 (0) 2 11 52 88-0
Fax + 49 (0) 2 11 52 88-143
[email protected]
www.hach-lange.com
DOC033.52.00421.Jan05
WW
Core capabilities.
Welcome to HACH LANGE!
Now you have the new SIPAN catalog.
Liquid analyzers of the SIPAN series for continuous
measurement of pH value/redox potential, conductivity
and dissolved oxygen supply important data to
process control systems or process control devices.
HACH LANGE is the market leader for Liquid Analytics
in the Water/Waste water sector. With product characteristics
such as explosion protection, etc. SIPAN products will ideally
complement the existing HACH LANGE product lines to an even
more extensive product range.
Whether field or laboratory analysis, samplers or process
measurement technology, HACH LANGE stands for the total
spectrum of water analysis - from visual methods to comprehensive
systems of reagents, measurement technology and accessories.
Solutions from HACH LANGE are tailor-made for every application
in wastewater, drinking water or process water - for reliable
control of operational processes and monitoring of legally prescribed
limit values.
HACH LANGE stands for water analysis from a single source.
For you, this means more products and applications, more experience
and on-site support than ever before
Your water-analysis team at
Chapter
Table of contents
Liquid Analysis
2
3
4
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
SIPAN 34
Analyzer for pH Value
and Redox Potential
SIPAN 32 and SIPAN 32X
SIPAN 34
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
SIPAN 34
HACH LANGE
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
2/2
2/2
2/2
2/4
2/5
2/9
2/11
2/12
2/13
Overview
Benefits
Application
Design
Function
Technical data
Ordering data
Dimensional drawings
Schematics
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
■ Benefits
Flüssigkeitsanalysengeräte
■ Overview
The SIPAN 32 and SIPAN 32X measuring equipment is designed to
determine the electric conductivity of aqueous or organic solutions.
Usefulness of SIPAN 32 and SIPAN 32X
• Two-wire connection
• Sensor diagnosis for temperature measurement
• Automatic measured-value hold at calibration
• Logbook to document all important events
• Local control following NAMUR
• PROFIBUS PA or HART communication available
• Available as Ex variant (EEx ib [ia])
• Field housing IP65
• Second, passive output, freely parameterizable (for temperature
(analog) or pre-warning/purging function/limit (binary)).
■ Application
The conductivity measuring range extends over 8 powers of ten
from ultra-pure water (approx. 0.040 µS/cm) up to very high conductivities (approx. 2500 mS/cm).
This wide range is covered by three measuring procedures (see Fig.):
• the two-electrode procedure (2EL sensor),
• the four-electrode procedure (4EL sensor) and
• the inductive procedure (IND sensor).
The measuring ranges as well as the fields of application of the
three procedures overlap to a certain extent.
SIPAN 32 for conductivity
SIPAN 32 and SIPAN 32X measuring equipment, selection table according to fields of application
2/2
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Twoelectrode procedure (2EL sensor)
The two-electrode procedure (2EL sensor) is used to measure
the conductivity of ultra-pure water and highly diluted aqueous
solutions from
0.04 µS/cm to 25 000 µS/cm
where contamination and deposits on the electrodes extending
into the measured medium are not expected (higher conductivities - above 5 000 µS/cm - lead to polarization effects and thus
to errors in measurement).
Media with conductivities < 5 µS/cm (VE water, ultra-pure water)
exhibit a distinct non-linear temperature dependence. The analyzer
is therefore provided with a temperature compensation function for
ultra-pure water.
Applications
• Steam generation (boiler feedwater, condensation)
• Semiconductor manufacture (ultra-pure water, chip cleaning)
• Water processing (reverse osmosis, ion exchanger)
• Leak testing of heat exchangers
• Drinking water and surface water.
Product characteristics
• Measurement of very small ranges (< 0.1 µS/cm) by using stainless steel sensors resistant to pressure and corrosion with a concentric electrode arrangement, with integrated thermom-eter
• Calibration of measurement is unnecessary for 2EL concentric
sensors (even following replacement of sensor); if needed, a
temperature calibration has to be carried out
• Low price for stainless steel pin electrodes with plastic shaft
with or without temperature compensation for measuring ranges
≥ 2 µS/cm
• Compact electrode, as combination with a pH/redox measurement in one fitting
• All versions of the two-electrode sensors with explosion protection for zone 1.
Fourelectrode procedure (4EL sensor)
The four-electrode procedure is used in media of average conductivity from
0.01 mS/cm to 500 mS/cm.
The advantages of this procedure are the insensitivity of the sen-sor
towards contamination and the avoidance of polarization errors.
Product characteristics
• Four concentric ring electrodes - potted level with the shaft - thus
particularly resistant to contamination
• Automatic compensation of contamination
• Sensors with integrated thermometer for automatic temperature
compensation
• Particularly compact design possible even in combination with a
pH/redox measurement.
Inductive procedure (IND sensor)
The inductive procedure can be used to measure the conductivity
of small to very high values from
1 µS/cm to approx. 2 500 mS/cm.
This procedure is particularly suitable for the measurement of corrosive media since there is no direct contact between the electrodes and the medium.
In addition to output of the conductivity, it is also possible to output
a display in percentage by weight following automatic conversion
(determination of concentration).
Applications
• Determination of concentrations of brines, alkalis and acids, in
particular sulphuric acid and oleum
• Corrosive industrial waste water
• CIP control
• Regeneration of concentration
• Phase separation of product/water mixtures
• Product monitoring in filling and cleaning plants.
Product characteristics
• Extremely wide dynamic range (> 106) with one type of sensor
• Three types of sensor manufactured from the high-tech polymer
PEEK with integrated thermometer and with special leak tightness of sensor and thermometer since moulded from one piece.
Permanent overload capacity 10 bar at +130 °C
• FEP sensor with large wall thickness for measurements in highly
concentrated acids and alkalis
• DURAN glass sensor absolutely resistant to diffusion in hot, super-saturated acids (oleum), resistant to organic solvents, with integrated thermometer
• Some versions with explosion protection for zone 1.
In addition to output of the conductivity, it is also possible to output a display in percentage by weight following automatic conversion.
Applications
• Municipal and industrial sewage treatment plants
• Service water and waste water
• Drinking water purification
• Cooling water
• Determination of concentrations of brines, alkalis and acids
• Monitoring of concentrates
• Bleaching and washing baths.
HACH LANGE
2/3
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
■ Design
Ex zone 0*)
Ex zone 1**)
Ex zone 2**)
Not Ex zone
Not Ex zone
SIPAN 32 not Ex zone
SIPAN 32X Ex zone 1
Ex zone 2
Keyboard
Display
Mains
EPROM
Conductivity
4 ... 20 mA
Isolating power
supply
HART
interface
4 ... 20 mA
EEPROM
Conductivity
Mains
A/D
D/A
Temperature
Temperature
0/4 ... 20 mA
or
Limit signal
(0/4) / 20 mA
or
Cleaning signal
(0/4) / 20 mA
or
Isolating power
supply
0/4 ... 20 mA
Warning
(0/4) / 20 mA
D/D
PROFIBUS PA
DP/PA coupler
DP/PA link
Basic version
Option
External device
*) Only sensors with ATEX approval
and in conjunction with SIPAN 32X
**) Only with SIPAN 32X
SIPAN 32 and SIPAN 32X analyzers, mode of operation
The SIPAN 32 and SIPAN 32X measuring equipment consist of:
• a sensor
• a flow, immersion or replacement fitting
• a temperature sensor (Pt1000 or Pt100)
• a SIPAN 32 or SIPAN 32X analyzer.
SIPAN 32 and SIPAN 32X are analyzers of the new two-wire generation with state-of-the-art micro-power technology with microprocessor control and multi-segment display.
2/4
HACH LANGE
They contain the analog and digital data processing functions,
depending on the version, for the signal delivered by the sensor.
The SIPAN 32 and SIPAN 32X analyzers are available in field
housings.
A SIPAN 32 or SIPAN 32X analyzer can be parameterized for all
measuring ranges.
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Conductivity
Examples of the dependence of conductivity on the concentration
are shown in the figure.
µScm-1
160
Either Pt100 or Pt1000 thermometers can be connected to the
analyzers. The measurement is designed as a two- or three-wire
system. The type of thermometer connected is recognized automatically.
CaCl2
NaCl
Na3PO4
KCl
CaSO4
Na2SO4
KNO3
HART or
PROFIBUS PA interface
40
Conductivity
60
80
Inputs
Ca(OH)2
100
Options
MgCl2
Na2CO3
H2SO4
Conductivity
Basic analyzer
HCl
HNO3
NaOH
120
Temperature compensation
140
With all three measuring procedures (2EL, 4EL and IND), a squarewave or sine-wave AC voltage is applied to the sensors. The magnitude and frequency depend on the measuring procedure. The
current output by the sensor is a measure of the conductivity of the
medium.
The conductivity of an electrolyte is a linear function of the concentration at a constant temperature since the valency - and also the
ion mobility in dilute aqueous solutions - remain constant.
200
The signals delivered by the analog input amplifiers are processed
into a temperature-compensated value by the digital data processing function.
180
Measuredvalue processing
20
Temperature
0
Outputs
0
Analog output
4 ... 20 mA with
alarm > 21 mA
2nd analog output for
temperature or contact for
flushing function or limit or
warning (not for PROFIBUS PA)
Functions
■ Function
Measuring procedure for conductivity measurements
The conductivity of liquids is based on the electrolytic dissociation
of acids, bases or salts in water into electrically charged particles
(ions).
The magnitude of the electrical conductivity K is the reciprocal
value of the electric resistance of the solution.
The dimension for electric conductivity is S/m (Hach Lange per
meter).
The conductivity of a dilute electrolyte solution depends on:
• The number of ions in the solution, i.e. its concentration
• The number of unit charges capable of being transported by each
ion, i.e. the ion charge number
• The migration velocity or mobility of the ions.
10
20
30
40
50
Concentration
60
70
80
90
100
mg·l-1
Conductivity of dilute solutions at 18 °C
The total conductivity of a solution is the sum of the conductivities
of all ion pairs present in the solution and is thus usually a non-specific variable.
In practice, however, the concentration of a component can be determined directly from the conductivity of a solution if
• only one substance is present in the solution
• all constituents of the solution change in approximately the same
ratio
• the variation of one constituent of the solution compared to that
of the others is so predominant that it alone practically determines
the conductivity.
In the case of concentrated solutions of electrolyte there is usually
no linear relationship between the conductivity of the solution and
the concentration of the electrolyte. The conductivity frequently decreases as the concentration increases since the degree of dissociation drops on the one hand and the ion mobility is reduced on
the other because of inter-ionic interactions.
A concentration measurement can nevertheless be carried out if it
is only made in a reliable range, i.e. where the conductivity either
rises or falls. This assumes that the relationship between conductivity and concentration of the electrolyte is known.
HACH LANGE
2/5
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Three different measuring procedures enable measurement of
the conductivity individually adapted to the task and the concentration of the electrolyte:
• Two-electrode procedure
• Four-electrode procedure
• Inductive procedure without electrodes.
0,8
S·cm-1
0,7
0,6
The conductivity measuring equipment consists of the following
basic components:
• Conductivity sensor
• Temperature sensor to compensate the influence of temperature
• Analyzer.
HCl
Conductivity
0,5
KOH
0,4
0,3
H2SO4
Twoelectrode procedure
0,2
KCl
0
10
A square-wave AC voltage is applied to the two current electrodes. The current flowing through the solution is inversely proportional to the electrical resistance and directly proportional to
the conductivity.
NaOH
0,1
0
HNO3
20
30
40
50
60
70
80
90
100
Concentration (% w/w)
Analyzer SIPAN 32, SIPAN 32X
Conductivity of concentrated solutions at 18 °C
The conductivity of electrolytes is highly temperature-dependent
since both the number of dissociated modules and the ion mobility
are highly temperature-dependent. A reference temperature of 25
°C is therefore selected and the measured conductivity values are
corrected accordingly using the temperature coefficient α.
U
I
The temperature coefficient α depends on
• the composition of the electrolyte solution
• the concentration of the solution.
U
I
Values from 1 to 6%/K are possible.
The figure shows that the resistance depends non-linearly on the
temperature for an NaCl solution.
Measured medium
Two-electrode procedure, mode of operation
Fourelectrode procedure
12
A square-wave AC voltage is applied to two current electrodes.The
four-electrode procedure uses two current electrodes and two voltage electrodes. A square-wave AC voltage is applied to the current
electrodes, and the current flowing through the solution is inversely
proportional to the electrode resistance and directly proportional to
the conductivity. The AC voltage is measured at the voltage electrodes and used to control the output voltage at the current electrodes. The generation of a deposit on the sensors is thus taken
into account and compensated.
3 mg/l
x 103 W
10
8
5 mg/l
Analyzer SIPAN 32, SIPAN 32X
6
7 mg/l
4
I
10 mg/l
U
I
15 mg/l
2
U
0
25 mg/l
10
20
U
20 mg/l
30
40
50
60
70
80
I
90 °C
Dependence of the resistance of an NaCl solution on the temperature at various concentrations
Measured
medium
Four-electrode procedure, mode of operation
2/6
HACH LANGE
I
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Inductive procedure
The sensor consists of two coils which are positioned on toroidal
tape cores. The primary coil is driven by a sinusoidal AC voltage.
An AC voltage is induced in the liquid loop (= measured medium) which constitutes the secondary winding of this "transformer". In the case of electrically conducting liquids, a current
flows which is proportional to their conductivity. The liquid loop
is simultaneously the primary winding of the secondary coil
which operates as a current transformer. This current is rectified
in-phase and amplified.
Analyzer SIPAN 32, SIPAN 32X
U
Measured
medium
I
U
I
Inductive procedure, mode of operation
Special characteristics of SIPAN 32
• Two-wire analyzer with state-of-the-art micropower technology
• Extremely simple field installation with only two wires
• Menu-based operation with understandable symbols (based
on IEC)
• Complete local operation with directly accessible keypad with
8 keys and large, clearly-arranged multi-segment display
• Display of S/cm, mS/cm, µS/cm, µS/m, MΩcm, kΩcm,
% w/w, H2SO4, oleum, HNO3, HCl, HBr, NaOH, NaCl, KOH
• Direct output of concentration values instead of conductivity (19
stored material tables)
• All measuring procedures 2EL, 4EL and IND are available
• Additional permanent temperature display selectable in
°C or °F
• Logbook with entry of faults or calibration procedures with date
and time
• Non-linear ultra-pure water temperature compensation for conductivity
• Automatic HOLD function
• Comprehensive fault diagnosis system
• 3 operating levels with coded protection for monitoring, routine
and specialists
• Selectable tests for display, keys, RAM, EPROM and EEPROM
• Output of defined current values for test purposes
• Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection
• Robust field housing (IP65/NEMA 4X) with four cable screwed
glands for easy connection
• There are three SIPAN 32 and SIPAN 32X analyzers, each available for the 2EL, 4EL and IND procedures.
Special characteristics of SIPAN 32X
• Intrinsic safe operation
• Analyzers with type of protection "Increased intrinsic safety"
EEx ib[ia] can be used within the potentially explosive atmospheres (zone 1, CENELEC).
Product characteristics of SIPAN 32, communication
variants
Device with 4 ... 20 mA output
• Electrical isolation (test voltage 500 V AC)
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA
• Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value
or contact for flushing function or limit or warning (pre-alarm).
Device with 4 ... 20 mA output and HART communication
• Completely parameterizable from control system via only one
two-wire cable
• Additional communication via handheld communicator or PC
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA (additional digital status transmission via HART protocol)
• Central access from control system (OS, ES) to any field device
using the SIEMENS PCS 7 control system
• Uniform operator control and monitoring of all field units (inclusive
linked host units) when using SIMATIC PDM
• Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value
or contact for flushing function or limit or warning (pre-alarm).
Device with PROFIBUS PA communication
• SIPAN 32 PA with bus connection to IEC 61158-2 and
EN 50170, Part 4
• Fixed bus current limitation in case of fault
• Data transmission and device supply via common bus connection
• Communication via PROFIBUS PA (Profile B, Version 3.0);
thereby all settings completely parameterizable (two synchronous
measured values, measuring range, limits, sensor diagnostic, operation simulation, etc.)
• Quality indication to the measured values: status with limits
• Full measured-value dynamics (discontinuation of measuredrange parameters)
• Central access from control system (OS, ES) to each field device
using the SIEMENS PCS 7 control system
• Uniform operator control and monitoring of all field units (inclusive
linked host units) when using SIMATIC PDM
• Possibility of a further diagnosis with increased disponibility of
plant parts
• Savings of installation costs
• Interoperability (replacement with parameter conservation possible)
• Possibility of automatic tracking of the plant documentation
• Possibility of plant optimizing during operation.
Parameter sets (option)
The analyzer has four parameter sets for four methods that can be
set independently from each other. This allows an optimal adaptation in a process when different media have to be measured.
Switchover to the correspondent parameter set can be controlled
externally (via HART or PROFIBUS PA).
HACH LANGE
2/7
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
SIPAN 32, SIPAN 32X analyzer, display and control panel
2/8
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
■ Technical data
Output signal
4 to 20 mA linear to measured
value or bilinear to measured value
(2 linear partial ranges with a knee
at 12 mA),
electrically isolated from sensor
Max. permissible load in Ω
R=
(U [power supply] -14) V/0.02 A
Power supply
14 V ... 30 V DC, 0.8 W,
protection class II (field housing)
Logbook
Automatic recording of warning
and failure messages with date and
time, 20 entries with overflow, nonerasable
Data storage
>10 years (EEPROM)
Device self-test
Testing of RAM, EPROM,
EEPROM, display, keyboard,
data can be called on display
Display
• Measured value
Four 16-mm digits
• Temperature
Four 8-mm digits
• Text display
Five digits
• Others
Symbol displays
• Input display
Symbols
Coding
3 coding levels for operations (display level, user level, specialist
level)
Unit
µS/cm, mS/cm, S/cm, µS/m,
mS/m, S/m, MΩcm, kΩcm,
% w/w
Measuring range
observe technical data of sensors
Measuring span (expansion)
Any, but at least 10% of smallest
measuring range
Clock
Software clock
Identification
CE marking
Output range
Optionally selectable between 0
and maximum full-scale value
Temperature and mechanical stress
Measuring range for temperature
-50 ... +200 °C, -60 ... +400 °F
• Operation
Measuring span for temperature
Any, but at least 10% of smallest
measuring range
Temperature compensation with con- Linear TC value, 0 to 10%/K or
ductivity measurements
non-linear response (max. 5 characteristics), 2 characteristics
defined as standard for ultra-pure
water and beer
Temperature compensation with
% w/w
Conductivity tables stored for
H2SO4, oleum, HNO3, HCl, HBr,
NaOH, KOH, NaCl
Error limits
- Temperature
- Mechanical stress
• Storage
- Temperature
- Mechanical stress
• Transport
- Temperature
DIN EN (IEC) 60721-3-3
-20 °C ... +70 °C corresponds to
3K6 but lowest temperature
–20 °C without condensation
3M2
DIN EN (IEC) 60721-3-1
-25 °C ... +70 °C corresponds to
1K4
1M2
DIN EN (IEC) 60721-3-2
-25 °C ... +70 °C corresponds to
2K3
• with conductivity measurement
< 2.0% of measuring range
(at rated conditions)
• with temperature compensation
< 0.5% of measured value
(for pure liquids)
Water protection
DIN EN (IEC) 60529,
IP65 for field devices
Influencing effects on mea
sured value
According to DIN IEC 746, Part 1
EMC
DIN EN (IEC) 61326 and
NAMUR NE 21
• Repeatability
<0.2% of full-scale value
Electrical safety
DIN EN (IEC) 61010-1
• Linearity
<0.5% of full-scale value
Quality assurance system
DIN ISO 9001/EN 29000
• Ambient temperature
<0.2%/10 K
Material of field housing
• Power supply
<0.1%
Macrolon (polycarbonate + 20%
glass fiber)
• Load
<0.1%/100 Ω
Permissible relative humidity
10 ... 95%, no condensation
<0.2% of full-scale value
Electrical isolation
Input and output are isolated
Test voltage
500 V AC, 50 Hz, 1 min
Weight
2.5 kg
• Zero error
- Mechanical stress
2M2
HACH LANGE
2/9
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Options
Communication
2nd passive analog output
0/4 to 20 mA linear to temperature,
or contact for flushing function or
limit or warning (pre-alarm)
SIPAN 32X with explosion protection
Explosion protection to ATEX Guideline 94/9/EC, DIN EN 50014 and
DIN EN 50020
Type of protection “Intrinsic safety”,
II (1) 2 G EEx ib[ia] IIC T4
Permissible ambient temperature
during operation
20 ... +60 °C
Output signal circuit
With type of protection Intrinsic
safety only for connection to certified intrinsically-safe circuits with
the following maximum values:
Ui = 30 V, Ii = 100 mA,
Pi = 750 mW, Ri = 300 Ω
Measured
medium
Temperature range
°C
Possible measuring
ranges % w/w
H2SO4
-20 ... +120
0 ... 34
32 ... 85
92 ... 99.5
Oleum
+10 ... +120
+10 ... +60
12 ... 45
60 ... 70
HNO3
-20 ... +55
0 ... 30
34 ... 85
92 ... 95
0 ... 12
0 ... +100
HCl
-20 ... +55
0 ... +100
0 ... +100
0 ... 26
18 ... 32
NaCl
0 ... +100
0 ... 26
KOH
0 ... +100
0 ... 34
32 ... 42
HBr
-20 ... +55
0 ... 30
39 ... 52
Programmed data of measured medium in SIPAN 32 for the
concentration display (the possible measuring ranges are maximum indications and are influenced by the temperature)
HACH LANGE
PC/laptop or HART communicator
with SIPAN 32 and SIPAN 32X
analyzer
Load with connection of HART
modem
250 ... 500 Ω
Load with connection of HART communicator
250 ... 500 Ω
Line
Two-wire, screened: ≤ 1.5 km
Protocol
HART, version 5.1
Option PROFIBUS PA
Power supply, bus voltage
Supplied by bus, 9 to 32 V (non
Ex), 9 to 24 V for intrinsically safe
operation
Power consumption of the unit
I = 13 mA ± 1 mA
• Max. current increase in case of error
I + 3 mA (electronic current limitation) (Imax. = 16 mA)
I + 27 mA (additional fuse)
(Imax. = 40 mA)
• Communication
PROFIBUS PA
(IEC 61158 CPF3 CP3/2)
Physical bus:
IEC 61158-2 MBP(-IS)
Polarity independent
• C2 connection
4 connections to Master Class 2
are supported
• Unit profile
PROFIBUS PA, Profile B,
Version 3.0
• Unit address
126 at delivery
mA
20
12
0 ... 16
24 ... 42
0 ... 12
NaOH
2/10
Option HART
4
KA
KK
KA Start-of-scale value
KK Knee
KE Full-scale value
Linear and bent characteristics in SIPAN 32 analyzer
KE
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Ordering data
Order No.
SIPAN 32 analyzer
twowire system, for conductivity measure
ment
Measuring procedure:
Twoelectrode procedure (2EL)
Fourelectrode procedure (4EL)
Inductive procedure (IND)
microprocessor-controlled, membrane keyboard with
LC display, menu control, logbook,
concentration display, temperature compensation,
1 parameter set, in field housing
7MA 2 0 4 0 7MA 2 1 4 0 7MA 2 2 4 0 8A ■
Standard version,
1 signal output: 4 to 20 mA
without interface
1 signal output: 4 to 20 mA,
with HART interface
2 signal outputs,
with HART interface:
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to 20 mA
temperature or switching function for limit or
flushing or warning
PROFIBUS PA, 4 parameter sets
A
B
C
D
Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request.
Please order together with the analyzer in cleartype.
Order No.
Isolating power supply
(see FI 01, Part 6, for technical
data)
Ordering data
Order No.
SIPAN 32X analyzer with Ex protection, intrin
sicallysafe version, II (1) 2G EEx ib [ia] IIC
T4,
twowire system, for conductivity measure
ment
Measuring procedure:
Twoelectrode procedure (2EL)
Fourelectrode procedure (4EL)
Inductive procedure (IND)
microprocessor-controlled, membrane keyboard with
LC display, menu control, logbook,
concentration display, temperature compensation,
1 parameter set, in field housing
7MA 2 0 4 1 7MA 2 1 4 1 7MA 2 2 4 1 8A ■
Standard version,
1 signal output: 4 to 20 mA
without interface
1 signal output: 4 to 20 mA,
with HART interface
2 signal outputs,
with HART interface:
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to 20 mA
temperature or switching function for limit or
flushing or warning
PROFIBUS PA, 4 parameter sets
Accessories/mounting mate
rial
A
B
C
D
Order No.
For mounting the analyzer or the
isolating block on a pipeline
HART version with Ex protection
EEx ia IIC, Smart, with 24 V DC
power supply, p.c.b., single locking
7NG41221AA10
HART version with Ex protection
EEx ia IIC, Smart, with 95-253 V
AC power supply, compact subassembly, DIN rail mounting
7NG41221BA10
Protective hood (SS, type No.
1.4571) with base plate
C79451A3177D12
Pipe clamp (SS, type No. 1.4571)
7MA85008DG
Base plate (SS, type No. 1.4571)
C79451A3177D11
HACH LANGE
2/11
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
■ Dimensional drawings
10
172
D-D
20.5
D
Æ 13
Æ 6.5
5
269
286±0.2 1)
306
94
105,5
D
0
R1
ca 30
16.5
94
152±0.2 1)
A
Bushings (3 x PG 11)
knockout if required
SIPAN 32 analyzer, dimensions in mm
2/12
HACH LANGE
PG 13.5
SW 24
PG 11
SW 22
1.7
19.5
26.5
80
17
View A
1)
3 fixing bores (M6)
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
■ Schematics
Analyzer SIPAN 32, SIPAN 32X
2
+
3
4
5
+
6
-
7
8
-
9
+
10 11
12
13 14
15 16
17
ö
ý
ø
ö
ý
ø
ö
ý
ø
1
-
Sensor
ö
ý
ø
0/4-20 mA
24 V DC
passive
4-20 mA
2nd analog
Option not
1)
HART used PROFIBUS PA output 1)
Sensors 7MA2000-8P...
17
10 11
12
13
BN
GN
Pt1000
2EL sensors 7MA2000-8A/B/C/D...
14
15
16
17
Conductivity
BN
16
WH
15
Conductivity
GY
PK
Pt100
14
YE
13
ö
ý
ø
WH/YE
12
ö
ý
ø
RD
10 11
WH
17
GN
15 16
WH/RD
14
WH/OR
13
ö
ý
ø
BK
12
ö
ý
ø
BU
10 11
SIPAN 32, SIPAN 32X
SIPAN 32, SIPAN 32X
SIPAN 32, SIPAN 32X
2EL sensors 7MA8500-8DS
The temperature sensor of the sensors 7MA2000-8P.
and 7MA8500-8DS is connected in two-wire system.
To compensate the resistance influence of the sensor
cable on the precision, a single temperature adjustment
must be carried out during commissioning.
IND sensors
7MA2200-8BA,
7MA2200-8EA
Pt100
12
14
15
16
17
Conductivity
BN
BU
Pt100
13
WH
YE
GN
WH
BN
GN
BN
YE
GN
WH
GY
10 11
ö
ý
ø
PK
17
ö
ý
ø
RD
16
Conductivity
BK
4EL sensors 7MA2100-8B/C...
15
YE
14
ö
ý
ø
ö
ý
ø
Pt100
Conductivity
13
GN
12
GY
10 11
PK
17
RD
16
BN
15
ö
ý
ø
ö
ý
ø
Pt100
14
WH
13
SIPAN 32, SIPAN 32X
BU
12
VI
10 11
SIPAN 32, SIPAN 32X
VI
SIPAN 32, SIPAN 32X
IND sensors
7MA2200-8.. (not -8BA, -8EA)
SIPAN 32, SIPAN 32X
12
15
16
17
Conductivity
PK
GY
GN
14
ö
ý
ø
ö
ý
ø
Pt100
13
WH
10 11
2EL sensor 7MA3100-8HL
Brown cable (BN) not connected.
Legend of colors
RD
red
PK
pink
GY
gray
WH
white
BN
brown
BU
blue
YE
yellow
GN
green
BK
black
OR
orange
VI
violet
1) Not used with PROFIBUS version.
SIPAN 32 or SIPAN 32X analyzer, electric connections
HACH LANGE
2/13
Liquid Analysis
Analyzer for Conductivity
SIPAN 32 and SIPAN 32X
Communication between SIPAN 32 with HART modem and PC
2/14
HACH LANGE
Analyzer for Conductivity
SIPAN 34
2/16
2/16
2/16
2/18
2/19
2/23
2/25
2/26
2/28
Overview
Benefits
Application
Design
Function
Technical data
Ordering data
Dimensional drawings
Schematics
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
Flüssigkeitsanalysengeräte
■ Overview
■ Benefits
The SIPAN 34 measuring equipment is designed to determine
the electric conductivity of aqueous or organic solutions.
Usefulness of SIPAN 34
• Four-wire connection
• Sensor diagnosis for temperature measurement
• Automatic measured-value hold at calibration
• Logbook to document all important events
• Local control following NAMUR
• Field housing IP65
• Panel housing IP54
• Second output for temperature (option)
• Three programmable relays.
■ Application
The conductivity measuring range extends over 8 powers of ten
from ultra-pure water (approx. 0.040 µS/cm) up to very high conductivities (approx. 2500 mS/cm).
This wide range is covered by three measuring procedures (see
Fig.):
• the two-electrode procedure (2EL sensor),
• the four-electrode procedure (4EL sensor) and
• the inductive procedure (IND sensor).
SIPAN 34 for conductivity
The measuring ranges as well as the fields of application of the
three procedures overlap to a certain extent.
SIPAN 34 measuring equipment, selection table according to fields of application
2/16
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
Twoelectrode procedure (2EL sensor)
The two-electrode procedure (2EL sensor) is used to measure
the conductivity of ultra-pure water and highly diluted aqueous
solutions from
0.04 µS/cm to 25 000 µS/cm
where contamination and deposits on the electrodes extending
into the measured medium are not expected (higher conductivities - above 5 000 µS/cm - lead to polarization effects and thus
to errors in measurement).
Media with conductivities < 5 µS/cm (VE water, ultra-pure water)
exhibit a distinct non-linear temperature dependence. The analyzer is therefore provided with a temperature compensation
function for ultra-pure water.
Applications
• Steam generation (boiler feedwater, condensation)
• Semiconductor manufacture (ultra-pure water, chip cleaning)
• Water processing (reverse osmosis, ion exchanger)
• Leak testing of heat exchangers
• Drinking water and surface water.
Product characteristics
• Measurement of very small ranges (< 0.1 µS/cm) by using stainless steel sensors resistant to pressure and corrosion with a concentric electrode arrangement, with integrated thermometer
• Calibration of measurement is unnecessary for 2EL concentric
sensors (even following replacement of sensor); if needed, a temperature calibration has to be carried out
• Low price for stainless steel pin electrodes with plastic shaft with
or without temperature compensation for measuring ranges
≥ 2 µS/cm
• Compact electrode, as combination with a pH/redox measurement in one fitting.
Fourelectrode procedure (4EL sensor)
The four-electrode procedure is used in media of average conductivity from
0.01 mS/cm to 500 mS/cm.
The advantages of this procedure are the insensitivity of the sensor
towards contamination and the avoidance of polarization errors.
Product characteristics
• Four concentric ring electrodes - potted level with the shaft - thus
particularly resistant to contamination
• Automatic compensation of contamination
• Sensors with integrated thermometer for automatic temperature
compensation
• Particularly compact design possible even in combination with a
pH/redox measurement.
Inductive procedure (IND sensor)
The inductive procedure can be used to measure the conductivity
of small to very high values from
1 µS/cm to approx. 2 500 mS/cm.
This procedure is particularly suitable for the measurement of corrosive media since there is no direct contact between the electrodes and the medium.
In addition to output of the conductivity, it is also possible to output
a display in percentage by weight following automatic conversion
(determination of concentration).
Applications
• Determination of concentrations of brines, alkalis and acids, in
particular sulphuric acid and oleum
• Corrosive industrial waste water
• CIP control
• Regeneration of concentration
• Phase separation of product/water mixtures
• Product monitoring in filling and cleaning plants.
Product characteristics
• Extremely wide dynamic range (> 106) with one type of sensor
• Three types of sensor manufactured from the high-tech polymer
PEEK with integrated thermometer and with special leak tightness of sensor and thermometer since moulded from one piece.
Permanent overload capacity 10 bar at +130 ºC
• FEP sensor with large wall thickness for measurements in highly
concentrated acids and alkalis
• DURAN glass sensor absolutely resistant to diffusion in hot, super-saturated acids (oleum), resistant to organic solvents, with
integrated thermometer.
In addition to output of the conductivity, it is also possible to output
a display in percentage by weight following automatic conversion.
Applications
• Municipal and industrial sewage treatment plants
• Service water and waste water
• Drinking water purification
• Cooling water
• Determination of concentrations of brines, alkalis and acids
• Monitoring of concentrates
• Bleaching and washing baths.
HACH LANGE
2/17
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
■ Design
SIPAN 34
Keyboard
Not Ex zone
Display
Conductivity
0/4 ... 20 mA
EPROM
EEPROM
D/A
Temperature
0/4 ... 20 mA
Conductivity
Limit 1
Limit 2
Diagnosis: alarm
A/D
Warning
Function check
Temperature
Range signaling
D/D
Range signaling
Range signaling
or
Option
Cleaning
Mains
Fitting
Flushing
D/D
Range switching
Basic version
Option
SIPAN 34 analyzer, mode of operation
2/18
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
The SIPAN 34 analyzer is optionally available with special features
for process use.
It contains the analog and digital data processing functions for the
signal delivered by the sensor.
A SIPAN 34 analyzer can be parameterized for all measuring
ranges.
Measuredvalue processing
The conductivity of an electrolyte is a linear function of the concentration at a constant temperature since the valency - and also the
ion mobility in dilute aqueous solutions - remain constant.
Examples of the dependence of conductivity on the concentration
are shown in the figure.
µScm-1
HCl
HNO3
NaOH
Ca(OH)2
Conductivity
Temperature
Remote range switching for
4 parameter sets, thus access
to 4 complete parameter sets
for complete methods incl.
measuring ranges, limits,
temp. compensation, hysteresis
160
100
80
0
Inputs
20
40
Options
60
Either Pt100 or Pt1000 thermometers can be connected to the
analyzers. The measurement is designed as a two- or three-wire
system. The type of thermometer connected is recognized automatically.
Basic analyzer
KNO3
Conductivity
Temperature compensation
NaCl
Na3PO4
KCl
CaSO4
Na2SO4
120
With all three measuring procedures (2EL, 4EL and IND), a squarewave or sine-wave AC voltage is applied to the sensors. The magnitude and frequency depend on the measuring procedure. The
current output by the sensor is a measure of the conductivity of the
medium.
CaCl2
140
Conductivity
MgCl2
Na2CO3
H2SO4
180
The signals delivered by the analog input amplifiers are processed
into a temperature-compensated value by the digital data processing function.
The conductivity of a dilute electrolyte solution depends on:
• The number of ions in the solution, i.e. its concentration
• The number of unit charges capable of being transported by each
ion, i.e. the ion charge number
• The migration velocity or mobility of the ions.
200
SIPAN 34 are analyzers of the new four-wire generation with stateof-the-art micro-power technology with microprocessor control
and multi-segment display.
0
10
20
30
40
50
Concentration
60
70
80
90
100
mg·l-1
Conductivity of dilute solutions at 18 °C
Outputs
Analog output
2nd analog output for temperature
The total conductivity of a solution is the sum of the conductivities
of all ion pairs present in the solution and is thus usually a non-specific variable.
Second 2 limits
limit
with
control
function
In practice, however, the concentration of a component can be determined directly from the conductivity of a solution if
• only one substance is present in the solution
• all constituents of the solution change in approximately the same
ratio
• the variation of one constituent of the solution compared to that
of the others is so predominant that it alone practically determines
the conductivity.
Contacts
1 x failure
1 x limit
2 x NAMUR
contacts
3 x cleaning
or 3 x range
signaling
contacts
Functions
■ Function
Measuring procedure for conductivity measurements
The conductivity of liquids is based on the electrolytic dissociation
of acids, bases or salts in water into electrically charged particles
(ions).
The magnitude of the electrical conductivity K is the reciprocal
value of the electric resistance of the solution.
The dimension for electric conductivity is S/m (Siemens per meter).
In the case of concentrated solutions of electrolyte there is usually
no linear relationship between the conductivity of the solution and
the concentration of the electrolyte. The conductivity frequently decreases as the concentration increases since the degree of dissociation drops on the one hand and the ion mobility is reduced on
the other because of inter-ionic interactions.
A concentration measurement can nevertheless be carried out if it
is only made in a reliable range, i.e. where the conductivity either
rises or falls. This assumes that the relationship between conductivity and concentration of the electrolyte is known.
HACH LANGE
2/19
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
Three different measuring procedures enable measurement of the
conductivity individually adapted to the task and the concentration
of the electrolyte:
• Two-electrode procedure
• Four-electrode procedure
• Inductive procedure without electrodes.
0,8
S·cm-1
0,7
0,6
The conductivity measuring equipment consists of the following
basic components:
• Conductivity sensor
• Temperature sensor to compensate the influence of temperature
• Analyzer.
HCl
Conductivity
0,5
KOH
0,4
0,3
HNO3
H2SO4
0,2
KCl
0
10
A square-wave AC voltage is applied to the two current electrodes.
The current flowing through the solution is inversely proportional to
the electrical resistance and directly proportional to the conductivity.
NaOH
0,1
0
Twoelectrode procedure
20
30
40
50
60
70
80
90
100
Analyzer SIPAN 34
Concentration (% w/w)
Conductivity of concentrated solutions at 18 °C
U
The conductivity of electrolytes is highly temperature-dependent
since both the number of dissociated modules and the ion mobility
are highly temperature-dependent. A reference temperature of 25
°C is therefore selected and the measured conductivity values are
corrected accordingly using the temperature coefficient α.
I
U
The temperature coefficient α depends on
• the composition of the electrolyte solution
• the concentration of the solution.
I
Measured
medium
Values from 1 to 6%/K are possible.
The figure shows that the resistance depends non-linearly on the
temperature for an NaCl solution.
Two-electrode procedure, mode of operation
Fourelectrode procedure
12
x
103
A square-wave AC voltage is applied to two current electrodes.The
four-electrode procedure uses two current electrodes and two voltage electrodes. A square-wave AC voltage is applied to the current
electrodes, and the current flowing through the solution is inversely
proportional to the electrode resistance and directly proportional to
the conductivity. The AC voltage is measured at the voltage electrodes and used to control the output voltage at the current electrodes. The generation of a deposit on the sensors is thus taken
into account and compensated.
3 mg/l
W
10
8
5 mg/l
Analyzer SIPAN 34
6
7 mg/l
4
I
U
I
10 mg/l
15 mg/l
U
2
0
25 mg/l
10
20
I
20 mg/l
30
40
50
60
70
80
90 °C
Dependence of the resistance of an NaCl solution on the temperature at various concentrations
2/20
HACH LANGE
U
Measured
medium
Four-electrode procedure, mode of operation
I
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
Inductive procedure
The sensor consists of two coils which are positioned on toroidal
tape cores. The primary coil is driven by a sinusoidal AC voltage.
An AC voltage is induced in the liquid loop (= measured medium)
which constitutes the secondary winding of this "transformer". In
the case of electrically conducting liquids, a current flows which is
proportional to their conductivity. The liquid loop is simultaneously
the primary winding of the secondary coil which operates as a current transformer. This current is rectified in-phase and amplified.
Analyzer SIPAN 34
U
Measured
medium
I
U
I
Inductive procedure, mode of operation
Special characteristics of SIPAN 34
• Power supply (24 V AC/DC, 115 V AC, 230 V AC)
• Complete basic configuration
• Self-explanatory menu operation in plain text in five languages
(German , English, French, Spanish, Italian), help function
• Operation according to NAMUR, i.e. complete local operation
with directly accessible keypad with 8 keys and large, illuminated,
full-graphic display
• Display of S/cm, mS/cm, µS/cm, µS/m, MΩcm, kΩcm,
% w/w, H2SO4, oleum, HNO3, HCl, HBr, NaOH, NaCl, KOH
• Direct output of concentration values instead of conductivity (19
stored material tables)
• Additional permanent bargraph of measuring range
• Graphic trend display of measured value
• Additional permanent temperature display in °C
• Output signal 0/4 to 20 mA, floating
• Freely-programmable, permanent measuring-point designation
(saves tag labels)
• Logbook with entry of faults or calibration procedures with date
and time
• Fault and limit contacts
• Non-linear ultra-pure water temperature compensation for conductivity
• All conductivity measuring procedures (2EL/4EL/IND)
can be selected, i.e. only one analyzer is required for
the complete conductivity range
• Program for automatic recording of user-specific temperature
compensation
• Maintenance switch with automatic HOLD function
• Comprehensive fault diagnosis and preventive maintenance system in plain text
• Three operating levels with coded protection for monitoring, routine and specialists
• Selectable tests for: keys, RAM, EPROM, EEPROM and display
• Output of freely-defined current values for test purposes
• Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection
• Panel housing made completely of metal, CE safety for every control cabinet installation engineer
• Robust field housing (IP65) with cable screwed glands for easy
connection.
Additional optional characteristics
• Second current output for temperature with additional limit
• Individual calibration of each parameter set possible
• Two-point controller for pulse length (dosing valves) or pulse frequency (diaphragm pumps)
• Additional switching contact for maintenance (function check)
and pre-alarm (warning)
• Cleaning function; three relay contacts can be operated via timer
to control an alternating fitting, as well as to give up cleaning and
flushing solutions
• The analyzer has four complete parameter sets for four methods,
not only for measuring ranges, e.g. also for limits, physical units,
temperature compensation with complete characteristic (not only
TC value), hysteresis to be set independently from each other.
This allows an optimal adaptation in a process when different media have to be measured at one measuring point. Switchover to
the correspondent parameter set can be controlled externally.
HACH LANGE
2/21
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
SIPAN 34 analyzer, display and control panel
2/22
HACH LANGE
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
■ Technical data
Limit
1 NO or 1 NC contact selectable,
hysteresis and response time can
be set
Display
Graphical
• Measured value
Four 15-mm digits
or trend display
5 bars, 3 mm high
Alarm contact
1 alarm (failure)
Relay contacts
NO contact, rating 24 V AC/DC,
1 A, floating, non-sparking
• Temperature, alarms, measuringpoint identification
3-mm digits
Current output as bargraph,
3 mm high
Logbook
Automatic recording of warning
and failure messages with date and
time, 20 entries with overflow, nonerasable
• Operator control
8 lines of text
1 heading (inverted display) and
6 text lines,
letters 4 mm high
Data storage
>10 years (EEPROM)
Device self-test
Testing of RAM, EPROM,
EEPROM, display, keyboard, data
can be called on display
Clock
Software clock
Identification
CE marking
• Illumination
LED
Languages
5: German, English, French,
Italian, Spanish; selectable
Coding
3 coding levels for operations
(display level, user level, specialist
level)
Dimension
µS/cm, mS/cm, S/cm, µS/m,
mS/m, S/m, % w/w, MΩcm, kΩcm
Measuring range
Observe technical data of sensors
Measuring span (expansion)
Any, but at least 10% of smallest
measuring range
Measuring range for temperature
-25 ... +175 °C, -13 ... +347 °F
Measuring span for temperature
Any, but at least 10% of measuring
range
Temperature compensation with
conductivity measurement
Linear TC value, 0 to 10%/K
Non-linear response (max.
9 characteristics)
2 characteristics defined as standard for ultra-pure water and beer
Temperature compensation
with % w/w
Conductivity tables stored for
H2SO4, oleum, HNO3, HCl, HBr,
NaOH, KOH, NaCl
Error limits
• With conductivity measurement
<1.0% of measuring range
(at rated conditions)
• With temperature compensation
<1.0% for characteristic
(with conductivity)
<0,5% of measured value
(for pure liquids)
Temperature and mechanical stress
• Operation
- Temperature
- Mechanical stress
• Storage
DIN EN (IEC) 60721-3-3
-20 °C ... +60 °C corresponds to
3K6 but lowest temperature
–20 °C without condensation
-5 °C ... +70 °C corresponds to
3K3 but highest temperature
+70 °C for panel mounting
3M2
DIN EN (IEC) 60721-3-1
- Temperature
-25 °C ... +70 °C corresponds
to 1K4 but highest temperature
+70 °C
- Mechanical stress
1M2
• Transport
- Temperature
- Mechanical stress
DIN EN (IEC) 60721-3-2
-25 °C ... +70 °C corresponds
to 2K3
2M2
Water protection
DIN EN (IEC) 60529
IP65 for field devices
IP54 for panel mounting
EMC
DIN EN (IEC) 61326 and
NAMUR NE 21
Electrical safety
DIN EN (IEC) 61010-1
Quality assurance system
DIN ISO 9001/EN 29000
Material of field housing
Macrolon (polycarbonate + 20%
glass fiber)
Influencing effects
According to DIN IEC 746, Part 1
• Repeatability
<0.2% of full-scale value
• Linearity
<0.5% of full-scale value
Material of panel housing
Aluminium
• Ambient temperature
<0.2%/10 K
Permissible relative humidity
10 ... 95%, no condensation
• Power supply
<0.1%
Power supply
• Load
<0.1%/100 Ω
120 V AC (94 V ... 132 V),
48 ... 63 Hz, 10 VA
230 V AC (187 V ... 264 V),
48 ... 63 Hz, 10 VA
24 V AC (20 V ... 26 V),
48 ... 63 Hz, 10 VA
24 V DC (20 V ... 30 V), 8 VA,
protection class II (field housing)
• Zero error
<0.2% of full-scale value
Output signal
4 to 20 mA, floating, linear to measured value or bilinear to measured
value (2 linear partial ranges with a
knee at 10 or 12 mA, see figure
Max. permissible load in Ω
750
Electrical isolation
Input and output are isolated
Test voltage
500 V AC, 50 Hz, 1 min
Weight
2.5 kg field housing
2.0 kg panel mounting housing
HACH LANGE
2/23
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
Options
Second output signal
0/4 ... 20 mA linear to
temperature
Additional limit
1 x NO or NC contact selectable,
any assignment to measured value
or temperature
Parameter sets
4
Diagnostic contacts
2, pre-alarm and maintenance
Range signalling
Signalling of current measuring
range (3 contacts)
Cleaning contacts with timer
3, fitting control, cleaning and
flushing
Range switchover
4, parameterizable as desired using
range selection; external control
possible
Controller
2 floating contacts (instead of
limits) as PI controller
Measured
medium
Temperature range
°C
Possible measuring
ranges % w/w
H2SO4
-20 ... +120
0 ... 34
32 ... 85
92 ... 99.5
Oleum
+10 ... +120
+10 ... +60
12 ... 45
60 ... 70
HNO3
-20 ... +55
0 ... 30
34 ... 85
92 ... 95
0 ... 12
0 ... +100
HCl
-20 ... +55
0 ... +100
0 ... 16
24 ... 42
0 ... 12
NaOH
0 ... +100
0 ... 26
18 ... 32
NaCl
0 ... +100
0 ... 26
KOH
0 ... +100
0 ... 34
32 ... 42
HBr
-20 ... +55
0 ... 30
39 ... 52
Programmed data of measured medium in SIPAN 34 for the concentration
display (the possible measuring ranges are maximum indications and are influenced by the temperature)
2/24
HACH LANGE
mA
20
10/12
0/4
KA
KK
KA Start-of-scale value
KK Knee
KE Full-scale value
Linear and bent characteristics in SIPAN 34 analyzer
KE
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
Ordering data
Order No..
Analyzer SIPAN 34
fourwire system,
for conductivity measurement
microprocessor-based with illuminated
graphic display, membrane keyboard, trend
display, menu-based operation (5 languages),
logbook, concentration display,
1 parameter set,
1 signal output 0/4 to 20 mA,
1 alarm contact,
1 limit contact,
2 diagnostic contacts
7MA 2 0 3 4 Power supply
• 24 V DC/24 V AC, 48 ... 63 Hz
• 120 V AC, 48 ... 63 Hz
• 230 V AC, 48 ... 63 Hz
■■■■ 0 0 ■■ 0
Order No.
For mounting the analyzer on a
pipeline
Protective hood (SS, type No.
1.4571) with base plate
C79451A3177D12
Pipe clamp (SS, type No. 1.4571)
7MA85008DG
Base plate (SS, type No. 1.4571)
C79451A3177D11
0
1
2
Measuring procedure
• Two-electrode procedure (2EL)
A
• Four-electrode procedure (4EL)
B
• Inductive procedure (IND)
C
Instrument design
• Field housing
• Panel housing 96 x 96
Accessories/mounting
material
A
B
Without additional option
0
With second signal output 0/4 ... 20 mA, and
second limit
1
With four selectable parameter sets and three range
signalling contacts
2
With second signal output 0/4 ... 20 mA and with four
selectable parameter sets and three range signalling
contacts
3
Limits with controller function
• Without
• With
Automatic cleaning/flushing (3 contacts + timer for fitting, cleaning, flushing)
• Without
• With
A
B
A
B
Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on
request.
Please order together with the analyzer in cleartype.
HACH LANGE
2/25
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
■ Dimensional drawings
10
172
D-D
20.5
D
Æ 13
Æ 6.5
5
269
286±0.2 1)
306
94
105.5
D
0
R1
ca 30
16.5
94
152±0.2 1)
A
PG 13.5
SW 24
SIPAN 34 analyzer as field housing, dimensions in mm
2/26
HACH LANGE
PG 11
SW 22
1.7
19.5
26.5
80
17
View A
1)
3 fixing bores (M6)
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
16
1
30
90
15
96
15
100
90
1
90
9 11
15
96
0 ... 6
18
8
67
282
SIPAN 34 analyzer as panel mounting instrument, dimensions in mm
HACH LANGE
2/27
Liquid Analysis
Analyzer for Conductivity
SIPAN 34
■ Schematics
SIPAN 34
10 11
12
13 14
15 16
17
18 19
ö
ý
ø
Selection
Range 2
Signaling
Range 3
Selection
Range 3
Pre-alarm
warning
ö
ý
ø
ö
ý
ø
ö
ý
ø
ö
ý
ø
24 V AC
110 V AC
230 V AC
ö
ý
ø
N
ö
ý
ø
L
Conductivity
ö
ý
ø
ö
ý
ø
Signaling
Range 2
ö
ý
ø
ö
ý
ø
Alarm
Failure
ö
ý
ø
ö
ý
ø
Limit 1
Limit 2
Maintenance
Functional check
Signaling
Range 4
Selection
Range 4
Temperature
Option
SIPAN 34
25
26
29
30
Fitting
ö
ý
ø
Conductivity
Flushing
Cleaning
WH
PK
15
ö
ý
ø
GY
28
ö
ý
ø
ö
ý
ø
Pt100
GN
27
12 13 14
ö
ý
ø
23 24
21 22
ö
ý
ø
ö
ý
ø
24 V DC
20
20 mA
9
20 mA
8
0/4
7
0/4
6
+24 V
5
+24 V
2
+
+24 V
1
-
2EL sensor 7MA3100-8HL
Brown cable (BN) not connected.
24
25
26
27
28 29
30
ö
ý
ø
ö
ý
ø
BN
23
30
WH
28 29
YE
27
GN
26
BN
PK
25
GY
24
GN
23
ö
ý
ø
BK
30
ö
ý
ø
28 29
WH/RD
27
WH/YE
26
WH/OR
25
RD
24
BU
23
SIPAN 34
SIPAN 34
WH
SIPAN 34
Pt100
Conductivity
Pt1000
Conductivity
Sensors 7MA2000-8P.
2EL sensors 7MA8500-8DS
2EL sensors 7MA2000-8A/B/C/D.
The temperature sensor of the sensors 7MA2000-8P.
and 7MA8500-8DS is connected in two-wire system.
To compensate the resistance influence of the sensor
cable on the precision, a single temperature adjustment
must be carried out during commissioning.
SIPAN 34
Conductivity
Pt100
IND sensors
7MA2200-8BA,
7MA2200-8EA
Pt100
4EL sensors 7MA2100-8B/C.
Conductivity
IND sensors
7MA2200-8.. (not -8BA, -8EA)
Legend of colors
RD
red
VI
violet
GY
gray
Electric connections
2/28
HACH LANGE
WH
white
BN
brown
BU
blue
YE
yellow
GN
green
BK
black
OR
orange
PK
pink
VT* Connection to terminal 23 of analyzer for
panel mounting connection to analyzer
shield for field instrument.
VT*
30
YE
28 29
BU
27
GN
26
BN
25
WH
24
GY
RD
VT*
23
PK
30
YE
28 29
GN
27
BU
26
BN
25
WH
BN
24
GN
23
30
BN
GN
28 29
SIPAN 34
ö
ý
ø
ö
ý
ø
Pt100
27
YE
26
WH
25
GY
24
PK
23
RD
BK
WH
SIPAN 34
Analyzer for pH Value
and Redox Potential
SIPAN 32 and SIPAN 32X
3/2
3/2
3/2
3/4
3/5
3/8
3/10
3/11
3/12
Overview
Benefits
Application
Design
Function
Technical data
Ordering data
Dimensional drawings
Schematics
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
Liquid Analyzers
■ Application
The application range for pH measurements covers the complete
pH scale (see Fig.) from pH = 0 to pH = 14 and for redox potential
measurements from -2000 mV to +2000 mV.
Acidic solutions
Strong
Weak
Neutral
SIPAN 32 for pH value and redox potential
■ Benefits
Usefulness of SIPAN 32 and SIPAN 32X
• Two-wire connection
• Sensor diagnosis
• Redundant pH measurement with 2 pH electrodes (increased
safety, reduced maintenance costs)
• Standard buffer stored for selection
• Automatic measured-value hold at calibration
• Logbook to document all important events
• Local control following NAMUR
• Use of all commercial pH and redox glass electrodes
• Differential pH sensors made of enamel (with two high impedance
inputs) can be used
• PROFIBUS PA or HART communication available
• Available as Ex variant (EEx ib [ia])
• Field enclosure IP65
• Second, passive output, freely parameterizable (for second measured value or temperature (analog) or pre-warning or purging
function or limit (binary)).
Alkaline solutions
Weak
Strong
pH value
Substance
[H3O+]
0 5% hydrochloric/accu acid 100
Strong
1
Gastric juice
2
Lemon juice/vinegar
3
Fruit juices
4
Wine
5
Coffee (black)
6
Mineral water/rain water
7
Water (pure)/milk (fresh) 10-7 Neutral
Acidic solutions
The SIPAN 32 and SIPAN 32X measuring equipment can be used to
measure the pH value and/or redox potential of aqueous solutions.
Weak
8 Sodium bicarbonate solution
9
Borax solution
10
Soap solution
11
Film developer
12
Ammonium hydroxide
13
Quicklime solution
14 Sodium hydrox. sol. 10% 10-14
pH value
Substance
Weak
Alkaline solutions
■ Overview
[H3O+]
Strong
Measuring equipment SIPAN 32 and SIPAN 32X, pH scale, examples
pH measurement
pH measurements are carried out in aqueous solutions for the following purposes:
• Manufacture of a product with defined characteristics
• Cost-saving production
• Protection of mankind, environment and material from damage
• Satisfy statutory requirements.
In the case of processes with varying temperatures, measurements
are usually carried out with temperature compensation because
the pH value changes with temperature according to the Nernst
equation.
Redox potential measurement
Redox potential (ORP) measurements permit statements to be
made on the oxidation or reduction power of an aqueous solution.
Metal combination electrodes (platinum or gold) are used for the
measurements and can be installed in the same fittings as the pH
sensors.
3/2
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
Applications
• Monitoring of automatic sewage detoxification
• Monitoring of electrolytic baths and bleaching baths
• Measurements on developers with reducing action, and starting
products for dyestuffs, e.g. methylene blue, anthraquinone sulphonate, indigo sulphate and naphthoquinone
• Monitoring of disinfection action in swimming pools.
Application field
Special characteristics
• Use of combination electrodes with integrated Pt1000 temperature sensor for applications where only one mounting location is
available
• Special, robust and low-maintenance electrodes for complex
measurements in the food/paper industries and in flue gas desulphurization plants
• Sterilizable electrodes for the food and pharmaceutical industries
• Low-maintenance electrodes with polymer or gel electrolytes
which are insensitive to contamination
• Electrodes for installation in pipes or vessels where the measured
medium is under pressure
• Replacement fittings for inline installation in reactors or process
lines
• Automatic sensor cleaning
• All versions with explosion protection for zone 1/event. zone 0
• Refillable electrode for use in water with low grade ion concentration.
Application example
Biology, medicine, bacteriology
Fermenter (antibiotics)
Breweries and yeast factories
Brewing water, mash, fermentation (favourable growth of yeast), cleaning solutions (CIP)
Chemical industry
Fat synthesis (saponification of fatty acids),
esterification of alcohols,
formation of aldol (production of plastics, etc.),
condensates and waste water in refineries,
glue, gelatine and soap manufacture,
production of acids and alkaline solutions,
chlor-alkali electrolysis
Electrical engineering, electroplating
Electrolytic capacitors, electrolytic baths, waste water
Tanneries
Steeping the skins, alkalinity of the lime-pit,
decalcification, staining, tanning, bleaching, dying
Rubber industry
Stability of latex
Iron and steel works, coke ovens, gas works
Ore preparation (flotation), gas purification
(sulphur removal), waste water and water purification
Power plants
Avoidance of corrosion in steam circuit, waste water control
Food industry
Preservation of fruit juices, gelatinization of jams, souring of milk, cheese preparation, maturing
of cream,
yogurt production,
sugar factories: purification and refining of juices (pre-separation and saturation), inversion of
glucose, fermentation of molasses, press water,
breweries
Paper, cellulose, rayon and explosives industries
Water treatment, sulphite liquor,
bleaching, soaping and wash baths,
sizing with resin soap and aluminium sulphate, neutralization of waste water
Pharmaceutical industry
High-purity water,
fermentation process,
product quality
Textile industry
Cleaning (soap) baths, bleaching baths,
dye baths (efficiency, hue), wash water (acid-free to avoid spots)
Hydroeconomy
Sewage treatment plants (optimum growth conditions in biological stages), river water (monitoring of sewage ingress because of danger to fish),
sedimentation and precipitation of colloidal suspensions, softening of water (optimum precipitation), neutralization with lime (danger of corrosion for pipes and concrete tanks), base exchange
methods (Permutite, Wolfatite)
Oil and gas
Acidic water from power refiner or flare zone,
biological sewage preparation,
water charge by NH3, H2S and hydrocarbons of low viscosity
HACH LANGE
3/3
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
■ Design
Ex zone 0*)
Ex zone 1**)
Ex zone 2**)
Not Ex zone
Not Ex zone
SIPAN 32 not Ex zone
SIPAN 32X Ex zone 1
Ex zone 2
Keyboard
Display
Mains
EPROM
pH / ORP
4 ... 20 mA
Isolating power
supply
HART
interface
4 ... 20 mA
EEPROM
pH / ORP
2nd meas. value
pH/ORP2, 0/4 ... 20 mA
or
pH / ORP
A/D
D/A
Temperature
0/4 ... 20 mA
or
Limit signal
(0/4) / 20 mA
or
Temperature
Mains
Isolating power
supply
0/4 ... 20 mA
Cleaning signal
(0/4) / 20 mA
or
Warning
(0/4) / 20 mA
D/D
PROFIBUS PA
DP/PA coupler
DP/PA link
Basic version
Option
External device
SIPAN 32 and SIPAN 32X analyzers, mode of operation
3/4
HACH LANGE
*) Only sensors with ATEX approval
and in conjunction with SIPAN 32X
**) Only with SIPAN 32X
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
The SIPAN 32 and SIPAN 32X measuring equipment consist of:
• a sensor (measuring and reference electrodes, usually as combination electrode)
• a flow, immersion or replacement fitting
• a temperature sensor (Pt1000 or Pt100) with temperature-compensated pH measurements
• a SIPAN 32 or SIPAN 32X analyzer.
SIPAN 32 and SIPAN 32X are analyzers of the new two-wire generation with state-of-the-art micro-power technology with microprocessor control and multi-segment display.
They contain the analog and digital data processing functions for
the signal delivered by the sensor.
■ Function
Sensors
The pH value is defined as the negative decimal logarithm of the hydrogen ion activity "a" (simplified: hydrogen ion concentration c)
pH = -log a H3O+
and indicates whether a solution (the measured medium) is acidic,
neutral or alkaline.
An assembly comprising a measuring electrode (glass electrode)
and reference electrode is used to measure the pH value (see Fig.).
Measuredvalue processing
In the measuring electrode, use is made of the dependence of the
potential of the glass membrane on the hydrogen ion activity. A
spherical glass membrane as the pH sensor is usually joined by
melting onto the end of the glass shaft. This sphere is filled with a
buffer solution of known pH (usually pH 7.0). The tapping electrode
is immersed into the glass sphere. The potential difference between
the inner and outer surfaces of the glass membrane is used for the
pH measurement.
The signals delivered by the analog input amplifiers are processed
into a temperature-compensated value by the digital data processing function.
The reference electrode has electrical contact to the measured medium via a diaphragm so that the circuit is closed via the measured
solution.
pH value
The Ag/AgCl tapping system is located in a KCl electrolyte which
may be liquid or bound to a gel-type or polymer carrier material.
The SIPAN 32 and SIPAN 32X analyzers are available in field housings.
A SIPAN 32 or SIPAN 32X analyzer can be parameterized for all
measuring ranges.
A potential depending on the concentration of hydrogen ions in the
measured medium is generated on the pH sensor. The voltage between the pH electrode and the reference electrode is described by
the Nernst equation:
U = Uo + 2,3RT/F x lg a H3O+
The measuring and reference electrodes must always have the
same tapping system. They can also be supplied as combination
electrodes and thus require only one mounting location. The
Pt100/1000 sensor for temperature compensation can also be integrated in the combination electrode.
The voltage which is proportional to the pH value is converted by
the transmitter into a standardized output signal of 58.16 mV per
∆pH = 1 (at 20 °C).
Combination electrodes with integrated Pt100/1000 are preferably
used in replacement or immersion fittings in which only one mounting location is available.
ORP value
Reference electrodes with a liquid electrolyte can be filled with KCl
via a filling opening and subjected to pressure if necessary.
The redox potential measurement determines the reduction or oxidation power of a solution. Oxidizing agents take up electrons, reducing agents give up electrons. The process is an equilibrium reaction:
Analyzer SIPAN 32
Ox+ + e- ↔ Red
The resulting potential U between the reference and measuring
electrodes is applied to the analyzer as a proportional voltage.
There is no temperature compensation.
Basic analyzer
U
I
24 V DC
Output signal
4 ... 20 mA
Options
Inputs
pH value
HART or
PROFIBUS PA interface
Reference
electrode
Temperature
Measuring
electrode
Outputs
Analog output
4 ... 20 mA with
alarm > 21 mA
2nd analog output or
2nd meas. value for temperature
or flushing function or
limit value or warning
(not for PROFIBUS PA)
Diaphragm
Measured medium
Mode of operation of pH sensors
Functions
HACH LANGE
3/5
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
Special characteristics of SIPAN 32X
• Intrinsic safe operation
• Analyzers with type of protection Increased intrinsic safety
EEx ib[ia] can be used within the potentially explosive atmospheres (zone 1, CENELEC)
• The measuring electrode can also be used in Zone 0 with the relevant intrinsic safe approval.
Product characteristics of SIPAN 32, communication
variants
Device with 4 ... 20 mA output
• Electrical isolation (test voltage 500 V AC)
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA
• Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value
or contact for flushing function or limit or warning (pre-alarm).
pH sensors, cross-section
Special characteristics of SIPAN 32
• Two-wire analyzer with state-of-the-art micro-power technology
• Extremely simple field installation with only two wires
• Menu-based operation with understandable symbols (based on
IEC)
• Complete local operation with directly accessible keypad with 8
keys and large, clearly-arranged multi-segment display
• Display of pH, mV, T
• Additional permanent temperature display selectable in °C or °F
• Limit monitoring
• Monitoring of sensor
• Logbook with entry of faults or calibration procedures with date
and time
• Software clock
• Automatic HOLD function during calibration
• Comprehensive fault diagnosis system
• 3 operating levels with coded protection for monitoring, routine
and specialists
• Selectable tests for display, keys, RAM, EPROM, EEPROM
• Output of defined current values for test purposes
• Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection
• Robust field housing (IP65/NEMA 4X) with cable screwed glands
for easy connection.
Optional characteristics of SIPAN 32
• Redundant pH value, or redundant ORP value, or pH + ORP value
measurements with 2 measured-value outputs for increased
measuring reliability
• Cleaning and timer function (option).
3/6
HACH LANGE
Device with 4 ... 20 mA output and HART communication
• Completely parameterizable from control system via only one
two-wire cable
• Additional communication via handheld communicator or PC
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA (additional digital status transmission via HART protocol)
• Central access from control system (OS, ES) to any field device
using the SIEMENS PCS 7 control system
• Uniform operator control and monitoring of all field units (inclusive
linked host units) when using SIMATIC PDM
• Optional second passive output, freely-parameterizable as additional current output, for temperature or second measured value
or contact for flushing function or limit or warning (pre-alarm).
Device with PROFIBUS PA communication
• SIPAN 32 PA with bus connection to IEC 61158-2 and
EN 50170, Part 4
• Fixed bus current limitation in case of fault
• Data transmisson and device supply via common bus connection
• Communication via PROFIBUS PA (Profile B, Version 3.0);
thereby all settings completely parameterizable (up to three synchronous measured values, measuring range, limits, sensor diagnostic, operation simulation, etc.)
• Quality indication to the measured values: status with limits
• Full measured-value dynamics (discontinuation of measuredrange parameters)
• Central access from control system (OS, ES) to each field device
using the SIEMENS PCS 7 control system
• Uniform operator control and monitoring of all field units (inclusive
linked host units) when using SIMATIC PDM
• Possibility of a further diagnosis with increased disponibility of
plant parts
• Savings of installation costs
• Interoperability (replacement with parameter conservation possible)
• Possibility of automatic tracking of the plant documentation
• Possibility of plant optimizing during operation.
Parameter sets
The analyzer has four parameter sets for four methods that can be
set independently from each other. This allows an optimal adaptation in a process when different medias have to be measured.
Switchover to the correspondent parameter set can be controlled
externally (via HART or PROFIBUS PA).
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
SIPAN 32, SIPAN 32X analyzer, display and control panel
HACH LANGE
3/7
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
■ Technical data
Influencing effects on mea
sured value
Display
According to DIN IEC 746, Part 1
• Repeatability
<0.2% of full-scale value
Four 16-mm digits
• Linearity
<0.01 pH or 1 mV
• Secondary display/temperature
Four 8-mm digits
• Ambient temperature
<0.02 pH/10 K or 1 mV/10 K
• Text display
Five digits
• Power supply
<0.01 pH or 1 mV
• Others
Symbol displays
• Load
<0.01 pH/100 Ω or 1 mV/100 Ω
• Input display
Symbols
• Zero error
<0.01 pH or 1 mV
Coding
3 coding levels for operations (display level, user level, specialist
level)
Output signal
4 to 20 mA, linear to measured
value
Unit
pH, mV
Max. permissible load in Ω
R=
(U [power supply] -14) V/0.02 A
Measuring range
0 to +15 pH, -2000 to +2000 mV
(observe technical data of sensors)
Power supply
14 V ... 30 V DC, 0.8 W,
protection class II
Measuring span (expansion)
Any, but at least 10% of smallest
measuring range
Test voltage
500 V AC, 50 Hz, 1 min
Logbook
Automatic recording of warning
and failure messages with date and
time, 20 entries with overflow, nonerasable
Data storage
>10 years (EEPROM)
Device self-test
Testing of RAM, EPROM,
EEPROM, display, keyboard, data
can be called on display
• Measured value
Output range
Optionally selectable between 0
and maximum full-scale value
Temperature compensation
Input: Pt100/Pt1000, automatic
selection, two-wire or three-wire
system
Compensation of Nernst voltage,
automatic, manual, adjustable temperature
-50 to +200 °C, -60 to +400 °F
Clock
Software clock
Measuring span for temperature
Any, but at least 10% of smallest
measuring range
Identification
CE marking
Electrical isolation
Input and output electrically isolated
• Operation
Measuring range for temperature
Temperature and mechanical stress
- Temperature
Input resistance
• Glass electrode
>1012 Ω
• Reference electrode
>1010 Ω
- Mechanical stress
• Storage
Offset current
• Glass electrode
• Reference electrode
<5⋅10-12 A (at 20 °C)
-10
<1⋅10
- Temperature
A (at 20 °C)
- Mechanical stress
Electrodes
• Electrode assembly zero point
pH 0 ... 14
• Slope range
50 ... 60 mV (per ∆pH = 1) at 20 °C
Isothermal intersection Uis
-1000 ... +1000 mV
• Transport
- Temperature
- Mechanical stress
Measuring impedance
DIN EN (IEC) 60721-3-3
-20 °C ... +60 °C corresponds to
3K6 but lowest temperature
-20 °C without condensation
3M2
DIN EN (IEC) 60721-3-1
-25 °C ... +70 °C corresponds to
1K4 but highest temperature
+70 °C
1M2
DIN EN (IEC) 60721-3-2
-25 °C ... +70 °C corresponds
to 2K3
2M2
Water protection
DIN EN (IEC) 60529
IP65 for field devices
DIN EN (IEC) 61326 and
NAMUR NE 21
• Glass electrode
5 ... 1000 MΩ
• Reference electrode
1 ... 100 kΩ
EMV
<0.03 pH or 2 mV
Electrical safety
DIN EN (IEC) 61010-1
< 0.5% of measured value
Quality assurance system
DIN ISO 9001/EN 29000
Material of field housing
Macrolon (polycarbonate + 20%
glass fiber)
Permissible relative humidity
10 ... 95%, no condensation
Weight
2.5 kg field housing
Error limits
• with pH/ORP measurement
• with temperature compensation
3/8
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
Communication
Options
Option HART
PC/laptop or HART communicator
with SIPAN 32 and SIPAN 32X
analyzer
Load with connection of HART
modem
250 ... 500 Ω
Load with connection of HART communicator
250 ... 500 Ω
SIPAN 32X with explosion protection
Explosion protection to ATEX Guideline 94/9/EC, DIN EN 50014 and
DIN EN 50020
Line
Two-wire, screened: ≤ 1.5 km
Protocol
HART, version 5.1
2nd passive analog output
0/4 ...20 mA linear to second measured value to temperature, or contact for flushing function or limit or
warning (pre-alarm)
Input resistance of high-resistance
inputs
pH 1 >1012 Ω,
pH 2 >1012 Ω
Type of protection “Intrinsic safety”,
II (1) 2 G EEx ib[ia] IIC T4
Permissible ambient temperature
during operation
-20 ... +60 °C
Output signal circuit
With type of protection Intrinsic
safety only for connection to certified intrinsically-safe circuits with
the following maximum values:
Ui = 30 V, Ii = 100 mA,
Pi = 750 mW, Ri = 300 Ω
Option PROFIBUS PA
Power supply, bus voltage
Supplied by bus, 9 to 32 V (non
Ex), 9 to 24 V for intrinsically safe
operation
Power consumption of the unit
I = 13 mA ± 1 mA
• Max. current increase in case of error
I + 3 mA (electronic current limitation) (Imax. = 16 mA)
I + 27 mA (additional fuse)
(Imax. = 40 mA)
• Communication
PROFIBUS PA
(IEC 61158 CPF3 CP3/2)
Physical bus:
IEC 61158-2 MBP(-IS)
Polarity independent
• C2 connection
4 connections to Master Class 2
are supported
• Unit profile
PROFIBUS PA, Profile B,
Version 3.0
• Unit address
126 at delivery
HACH LANGE
3/9
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
Ordering data
Order No.
Ordering data
Order No.
SIPAN 32 analyzer
twowire system, for pH or ORP measure
ments
Single measurement:
1 x pH or 1 x ORP, membrane keyboard with LC display, menu control, logbook, measured-value display,
temperature compensation, 1 parameter set,
microprocessor-controlled,
in field housing
7MA 1 0 4 0 8 A■
SIPAN 32X analyzer with Ex protection,
intrinsically safe version,
II (1)2 G EEx ib [ia] II C T4,
twowire system, for pH or ORP measure
ments
Single measurement:
1 x pH or 1 x ORP, membrane keyboard with LC display, menu control, logbook, measured-value display,
temperature compensation, 1 parameter set,
microprocessor-controlled,
in field housing
7MA 1 0 4 1 8 A■
A
Standard version,
1 signal output: 4 to 20 mA
1 signal output: 4 to 20 mA,
with HART interface
2 signal outputs,
with HART interface:
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to 20 mA
Temperatur or switching function for limit or
flushing or warning
PROFIBUS PA, 4 parameter sets
B
C
D
Standard version,
1 signal output: 4 to 20 mA
1 signal output: 4 to 20 mA,
with HART interface
2 signal outputs,
with HART interface:
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to 20 mA
Temperatur or warning
PROFIBUS PA, 4 parameter sets
A
B
C
D
Ordering data
Order No..
Ordering data
Order No.
Analyzer SIPAN 32
twowire system, for pH or ORP measure
ments
Double measurement:
2 x pH or 2 x ORP, or 1 x pH and 1 x ORP
membrane keyboard with LC display, menu control,
logbook, measured-value display, temperature compensation, 1 parameter set, microprocessor-controlled,
in field housing
7MA 1 1 4 0 8 A■
SIPAN 32X analyzer with Ex protection,
intrinsically safe version,
II (1)2 G EEx ib [ia] II C T4,
twowire system, for pH or ORP measure
ments
Double measurement:
2 x pH or 2 x ORP, or 1 x pH and 1 x ORP
membrane keyboard with LC display, menu control,
logbook, measured-value display, temperature compensation, 1 parameter set, microprocessor-controlled,
in field housing
7MA 1 1 4 1 8 A■
2 signal outputs
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to20 mA for pH or
ORP
2 signal outputs: 4 to 20 mA
with HART interface
PROFIBUS PA, 4 parameter sets
B
C
D
Certificate according to DIN 55350-18-4.1.1 for SIPAN Analyzer on
request.
Please order together with the analyzer in cleartype.
Order No.
Isolating power supply
(see FI 01, Part 6, for technical
data)
HART version with Ex protection
EEx ia IIC, Smart, with 24 V AC/DC
power supply, compact subassembly, DIN rail mounting
HART version with Ex protection
EEx ia IIC, Smart, with 95-253 V
AC power supply, compact subassembly, DIN rail mounting
3/10
HACH LANGE
2 signal outputs
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to20 mA for pH or
ORP
2 signal outputs: 4 to 20 mA
with HART interface
PROFIBUS PA, 4 parameter sets
Accessories/mounting
material
B
C
D
Order No.
For mounting the analyzer on a
pipeline
7NG41221AA10
7NG41221BA10
Protective hood (SS, type No.
1.4571) with base plate
C79451A3177D12
Pipe clamp (SS, type No. 1.4571)
7MA85008DG
Base plate (SS, type No. 1.4571)
C79451A3177D11
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
■ Dimensional drawings
10
172
D-D
20.5
D
Æ 13
Æ 6.5
5
269
286±0.2 1)
306
94
105,5
D
0
R1
ca 30
16.5
94
152±0.2 1)
A
Bushings (3 x PG 11)
knockout if required
PG 13.5
SW 24
PG 11
SW 22
1.7
19.5
26.5
80
17
View A
1)
3 fixing bores (M6)
SIPAN 32 analyzer, dimensions in mm
HACH LANGE
3/11
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
■ Schematics
Electric sensor connections for pH or redox potential measurement
SIPAN 32, SIPAN 32X
SIPAN 32, SIPAN 32X
10 11
12
Pt100
Pt1000
ER
15
16 17 18 19
10 11
12
15
16 17 18 19
Equipotential
bonding
Equipotential
bonding
pH or
redox
Comb. electrode with special cable*
Measured medium
Pt100
Pt1000
ER
Ref.
pH or
redox
Measured medium
*) Special cable means double-shielded cable (e.g. 7MA8500-8DP)
ER: alternative equivalent resistance 100-120 W
Electric sensor connections for pH or redox potential measurement with sensor monitoring
SIPAN 32, SIPAN 32X
7MA114x-8Ax
10 11
12
Pt100
Pt1000
ER
15
SIPAN 32, SIPAN 32X
7MA114x-8Ax
16 17 18 19
Redox
comb. electrode
Redox
comb. electrode
Measured medium
10 11
12
15
16 17 18 19
External screen
not connected
pH combination
pH combination
Pt100
electrode 1
electrode 2
Pt1000
with
special
cable
with
special cable
ER
Measured medium
ER: Equivalent resistance 100-120 W
Electric sensor connections for redundant pH or redox potential measurement, 2 pH sensors in one measured medium with sensor monitoring
✍ Please look at the current product list attached, if the product is still available.
3/12
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
15
6
4
3
5
1
3
Measured medium
2
16 17 18 19
9
VI
12
2
WH
electrode
pH combin. electrode 1
with special cable **
7MA8500-8DP
10 11
BN
* Redox
comb.
External screen
not connected
BU
16 17 18 19
BN
Pt100
Pt1000
ER
15
BK
12
GN
10 11
SIPAN 32, SIPAN 32X
7MA114x-8Ax
OR
SIPAN 32, SIPAN 32X
7MA114x-8Ax
8
1 Ü Number
rings
5 Ü Plug
4
assignment
Electrode plugs
Screen
Pt1000
*
Reference electrode of redox combination electrode
(reference electrode of the pH combination electrode
is not used)
cable means double-shielded cable
** Special
(e.g. 7MA8500-8DP)
ER: alternative equivalent resistance 100-120 W
Screen
Center
Refer.
Meas.
point
electrode electrode
electrode
Differential pH sensor 7MA8500-8FM
Legend of colors
OR
VI
orange violet
GY
gray
WH
white
BN
brown
BU
blue
YE
yellow
GN
green
BK
black
Electric sensor connections, on left for simultaneous pH or redox potential measurement, on right differential pH sensor with sensor monitoring
HACH LANGE
3/13
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 32 and SIPAN 32X
Communication between SIPAN 32 with HART modem and PC
Note:
When the SIPAN 32 is used with two measuring electrodes (pH + pH, pH + ORP, ORP + ORP), observe that the two electrodes and the temperature
sensor are in the same medium because only one reference electrode is used for both measuring electrodes. the two measuring electrodes (pH +
pH, pH + ORP) always must be calibrated together.
3/14
HACH LANGE
Analyzer for pH Value
and Redox Potential
SIPAN 34
3/16
3/16
3/16
3/18
3/19
3/22
3/24
3/25
3/27
Overview
Benefits
Application
Design
Function
Technical data
Ordering data
Dimensional drawings
Schematics
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
■ Application
The SIPAN 34 measuring equipment can be used to measure the
pH value and/or redox potential of aqueous solutions.
The application range for pH measurements covers the complete
pH scale (see Fig.) from pH = 0 to pH = 14 and for redox potential
measurements from -2000 mV to +2000 mV.
Acidic solutions
Strong
Weak
Neutral
Weak
■ Benefits
Usefulness of SIPAN 34
• Four-wire connection
• Sensor diagnosis
• Redundant pH measurement with 2 pH electrodes (increased
safety, reduced maintenance costs)
• Standard buffer stored for selection
• Automatic measured-value hold at calibration
• Logbook to document all important events
• Local control following NAMUR
• Use of all commercial pH and redox glass electrodes
• Differential pH sensors made of enamel (with two high impedance
inputs) can be used
• Field housing IP65
• Panel housing IP54
• Second output for measured value or temperature (option).
Alkaline solutions
SIPAN 34 for pH value and redox potential
Strong
pH value
Substance
[H3O+]
0 5% hydrochloric/accu acid 100
Strong
1
Gastric juice
2
Lemon juice/vinegar
3
Fruit juices
4
Wine
5
Coffee (black)
6
Mineral water/rain water
7
Water (pure)/milk (fresh) 10-7 Neutral
Acidic solutions
■ Overview
Weak
8 Sodium bicarbonate solution
9
Borax solution
10
Soap solution
11
Film developer
12
Ammonium hydroxide
13
Quicklime solution
14 Sodium hydrox. sol. 10% 10-14
pH value
Substance
Weak
Alkaline solutions
Flüssigkeitsanalysengeräte
[H3O+]
Strong
Measuring equipment SIPAN 34, pH scale, examples
pH measurement
pH measurements are carried out in aqueous solutions for the following purposes:
• Manufacture of a product with defined characteristics
• Cost-saving production
• Protection of mankind, environment and material from damage
• Satisfy statutory requirements.
In the case of processes with varying temperatures, measurements
are usually carried out with temperature compensation because
the pH value changes with temperature according to the Nernst
equation.
Redox potential measurement
Redox potential (ORP) measurements permit statements to be
made on the oxidation or reduction power of an aqueous solution.
Metal combination electrodes (platinum or gold) are used for the
measurements and can be installed in the same fittings as the pH
sensors.
3/16
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
Applications
• Monitoring of automatic sewage detoxification
• Monitoring of electrolytic baths and bleaching baths
• Measurements on developers with reducing action, and starting
products for dyestuffs, e.g. methylene blue, anthraquinone sulphonate, indigo sulphate and naphthoquinone
• Monitoring of disinfection action in swimming pools.
Application field
Special characteristics
• Use of combination electrodes with integrated Pt1000 temperature sensor for applications where only one mounting location is
available
• Special, robust and low-maintenance electrodes for complex
measurements in the food/paper industries and in flue gas desulphurization plants
• Sterilizable electrodes for the food and pharmaceutical industries
• Low-maintenance electrodes with polymer or gel electrolytes
which are insensitive to contamination
• Electrodes for installation in pipes or vessels where the measured
medium is under pressure
• Replacement fittings for inline installation in reactors or process
lines
• Automatic sensor cleaning
• All versions with explosion protection for zone 1/event. zone 0
• Refillable electrode for use in water with low grade ion concentration.
Application example
Biology, medicine, bacteriology
Fermenter (antibiotics)
Breweries and yeast factories
Brewing water, mash, fermentation (favourable growth of yeast), cleaning solutions (CIP)
Chemical industry
Fat synthesis (saponification of fatty acids),
esterification of alcohols,
formation of aldol (production of plastics, etc.),
condensates and waste water in refineries,
glue, gelatine and soap manufacture,
production of acids and alkaline solutions,
chlor-alkali electrolysis
Electrical engineering, electroplating
Electrolytic capacitors, electrolytic baths, waste water
Tanneries
Steeping the skins, alkalinity of the lime-pit,
decalcification, staining, tanning, bleaching, dying
Rubber industry
Stability of latex
Iron and steel works, coke ovens, gas works
Ore preparation (flotation), gas purification
(sulphur removal), waste water and water purification
Power plants
Avoidance of corrosion in steam circuit, waste water control
Food industry
Preservation of fruit juices, gelatinization of jams, souring of milk, cheese preparation, maturing
of cream,
yogurt production,
sugar factories: purification and refining of juices (pre-separation and saturation), inversion of
glucose, fermentation of molasses, press water,
breweries
Paper, cellulose, rayon and explosives industries
Water treatment, sulphite liquor,
bleaching, soaping and wash baths,
sizing with resin soap and aluminium sulphate, neutralization of waste water
Pharmaceutical industry
High-purity water,
fermentation process,
product quality
Textile industry
Cleaning (soap) baths, bleaching baths,
dye baths (efficiency, hue), wash water (acid-free to avoid spots)
Hydroeconomy
Sewage treatment plants (optimum growth conditions in biological stages), river water
(monitoring of sewage ingress because of danger to fish),
sedimentation and precipitation of colloidal suspensions, softening of water (optimum precipitation), neutralization with lime (danger of corrosion for pipes and concrete tanks), base exchange
methods (Permutite, Wolfatite)
Oil and gas
Acidic water from power refiner or flare zone,
biological sewage preparation,
water charge by NH3, H2S and hydrocarbons of low viscosity
HACH LANGE
3/17
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
■ Design
SIPAN 34
Not Ex zone
Display
Keyboard
pH/ORP
0 / 4 ... 20 mA
EPROM
EEPROM
pH / ORP
D/A
Temperature
0/4 ... 20 mA
Limit 1
pH / ORP
Limit 2
Diagnosis: alarm
A/D
Warning
Function check
Temperature
Range signalling
D/D
Range signalling
Range signalling
or
Option
Cleaning
Mains
Fitting
Flushing
D/D
Range switching
Basic version
Option
SIPAN 34 analyzer, mode of operation
The SIPAN 34 measuring equipment consists of:
• a sensor (measuring and reference electrodes, usually as
combination electrode)
• a flow, immersion or replacement fitting
• a temperature sensor (Pt1000 or Pt100) with temperature-compensated pH measurements
• a SIPAN 34 analyzer.
The measured signal delivered by the sensor is processed in the SIPAN 34 analyzer and at disposition in analog form.
SIPAN 34 are analyzers of the new four-wire generation with stateof-the-art micropower technology with microprocessor control and
multi-segment display.
The signals delivered by the analog input amplifiers are processed
into a temperature-compensated value by the digital data processing function.
3/18
HACH LANGE
The SIPAN 34 analyzers are available in field and in panel housings.
A SIPAN 34 analyzer can be parameterized for all measuring
ranges.
Measuredvalue processing
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
pH value
■ Function
A potential depending on the concentration of hydrogen ions in the
measured medium is generated on the pH sensor. The voltage between the pH electrode and the reference electrode is described by
the Nernst equation:
U = Uo + 2.3RT/F x lg aH3O+
Sensors
The pH value is defined as the negative decimal logarithm of the hydrogen ion activity "a" (simplified: hydrogen ion concentration c)
pH = -log a H3O+
The voltage which is proportional to the pH value is converted by
the transmitter into a standardized output signal of 58.16 mV per
∆pH = 1 (at 20 °C).
and indicates whether a solution (the measured medium) is acidic,
neutral or alkaline.
ORP value
An assembly comprising a measuring electrode (glass electrode)
and reference electrode is used to measure the pH value (see Fig.).
The redox potential measurement determines the reduction or
oxidation power of a solution. Oxidizing agents take up electrons,
reducing agents give up electrons. The process is an equilibrium
reaction:
Ox+ + e- ↔ Red
The resulting potential U between the reference and measuring
electrodes is applied to the analyzer as a proportional voltage.
There is no temperature compensation.
Basic analyzer
Options
Inputs
pH/Redox
Temperature
Remote range switching for
4 parameter sets, thus access
to 4 complete parameter sets
for complete methods incl.
measuring ranges, limits,
temp. compensation, hysteresis
Outputs
Analog output
2nd analog output for second
measured value or temperature
Contacts
1 x failure
1 x limit
2 x NAMUR
contacts
Second 2 limits
limit
with
control
function
In the measuring electrode, use is made of the dependence of the
potential of the glass membrane on the hydrogen ion activity. A
spherical glass membrane as the pH sensor is usually joined by
melting onto the end of the glass shaft. This sphere is filled with a
buffer solution of known pH (usually pH 7.0). The tapping electrode
is immersed into the glass sphere. The potential difference between
the inner and outer surfaces of the glass membrane is used for the
pH measurement.
The reference electrode has electrical contact to the measured medium via a diaphragm so that the circuit is closed via the measured
solution.
The Ag/AgCl tapping system is located in a KCl electrolyte which
may be liquid or bound to a gel-type or polymer carrier material.
The measuring and reference electrodes must always have the
same tapping system. They can also be supplied as combination
electrodes and thus require only one mounting location. The
Pt100/1000 sensor for temperature compensation can also be integrated in the combination electrode.
Combination electrodes with integrated Pt100/1000 are preferably
used in replacement or immersion fittings in which only one mounting location is available.
Reference electrodes with a liquid electrolyte can be filled with KCl
via a filling opening and subjected to pressure if necessary.
3 x cleaning
or 3 x range
signaling
contacts
Functions
HACH LANGE
3/19
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
Analyzer SIPAN 34
Mains
U
I
Output signal
0/4 ... 20 mA
Power
supply
Reference
electrode
Measuring
electrode
Diaphragm
Measured medium
Mode of operation of pH sensors
Special characteristics of SIPAN 34
• Four-wire analyzer with extremely easy operation
• Universal power supply (24 V AC/DC, 115 V AC, 230 V AC)
• Complete basic configuration
• Self-explanatory menu operation in plain text in five languages,
without Instruction Manual, HELP function
• Operation according to NAMUR, i.e. complete local operation
with directly accessible keypad with 8 keys and large, illuminated,
full-graphic display
• Display of pH, mV, additional permanent bargraph of measuring
range
• Graphic trend display of measured value
• Additional permanent temperature display in °C
• Output signal 0/4 to 20 mA, floating
• Freely-programmable, permanent measuring-point designation
(saves TAG labels)
• Logbook with entry of faults or calibration procedures with date
and time
• Sensor monitoring
• Fault and limit contacts
• Automatic recognition of buffer (NIST and technical buffers)
• Maintenance switch with automatic HOLD function
• Comprehensive fault diagnosis and preventive maintenance system in plain text
• Three operating levels with coded protection for monitoring, routine and specialists
• Selectable tests for: keys, RAM, EPROM, EEPROM, display
• Output of freely-defined current values for test purposes
• Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection
• Panel housing made completely of metal, CE safety for every control cabinet installation engineer
• Robust field housing (IP65) with cable screwed glands for easy
connection.
Additional, optional characteristics
• Second current output for measured value or temperature with
additional limit
• Four parameter sets with remote selection for complete methods,
not only for measuring ranges, e.g. also limits, temperature compensation, hysteresis
• Automatic cleaning function (3 relays) for cleaning, flushing, fitting
control with cyclic time input, waiting and holding functions
• Two-point controller for pulse length (dosing valves) or pulse frequency (diaphragm pumps)
• Additional switching contact for maintenance (function check)
and pre-alarm (warning)
• Redundant pH or ORP measurement with 2 measured-value outputs for increased measuring reliability.
pH sensors, cross-section
3/20
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
SIPAN 34 analyzer, display and control panel
HACH LANGE
3/21
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
■ Technical data
Display
Measuring impedance
Graphical
• Measured value
Four 15-mm digits
or trend display
5 bars, 3 mm high
• Glass electrode
5 ... 1000 MΩ
• Reference electrode
1 ... 100 kΩ
Error limits
• with pH/ORP measurement
<0.03 pH or 2 mV
• Temperature, alarms, measuringpoint identification
3-mm digits
Current output as bargraph,
3 mm high
• with temperature compensation
< 0.5% of measured value
Influencing effects on mea
sured value
According to DIN IEC 746, Part 1
• Operator control
8 lines of text
1 heading (inverted display) and 6
text lines,
letters 4 mm high
• Repeatability
<0.2% of full-scale value
• Linearity
<0.01 pH or 1 mV
• Ambient temperature
<0.02 pH/10 K or 1 mV/10 K
• Illumination
LED
• Power supply
<0.01 pH or 1 mV
Languages
5: German, English, French, Italian, Spanish; selectable
• Load
<0.01 pH/100 Ω or 1 mV/100 Ω
• Zero error
<0.01 pH or 1 mV
Coding
3 coding levels for operations (display level, user level, specialist
level)
Output signal
0/4 ... 20 mA, linear to measured
value
Dimension
pH, mV
Measuring range
-3 ...+15 pH, -2000 ...+2000 mV
(observe technical data of sensors)
Measuring span (expansion)
Any, but at least 10% of smallest
measuring range
Output range
Temperature compensation
Measuring range for temperature
Max. permissible load in Ω
750
Test voltage
500 V AC, 50 Hz, 1 min
Limit
1 NO or 1 NC contact selectable,
hysteresis and response time can
be set
Optionally selectable between 0
and maximum full-scale value
Alarm contact
1 alarm (failure)
Diagnostic contacts
Two, pre-alarm and maintenance
Input: Pt100/Pt1000, automatic
selection, two-wire or three-wire
system
Compensation of Nernst voltage,
automatic, manual, adjustable temperature
Relay contacts
Rating 24 V DC, 1 A
Logbook
Automatic recording of warning
and failure messages with date and
time, 20 entries with overflow, nonerasable
Data storage
>10 years (EEPROM)
Device self-test
Testing of RAM, EPROM,
EEPROM, display, keyboard, data
can be called on display
-25 ... +175 °C, -13 ... +347 °F
Measuring span for temperature
Any, but at least 10% of smallest
measuring range
Electrical isolation
nput and output electrically isolated
Input resistance
• Glass electrode
>1012 Ω
• Reference electrode
>1010 Ω
Clock
Software clock
Protection
According to IEC 79-15;
conformity certificate
Identification
CE marking
Temperature and mechanical stress
Offset current
• Glass electrode
<5⋅10-12 A (at 20 °C)
• Reference electrode
<1⋅10-10 A (at 20 °C)
• Operation
- Temperature
Electrodes
• Electrode assembly zero point
pH 0 ... 14
• Slope range
50 ... 60 mV (per ∆pH = 1) at 20 °C
Isothermal intersection Uis
-1000 ... +1000 mV
- Mechanical stress
• Storage
HACH LANGE
-20 °C ... +60 °C corresponds to
3K6 but lowest temperature
–20 °C without condensation
-5 °C ... +70 °C corresponds to
3K3 but highest temperature
+70 °C for panel mounting
3M2
DIN EN (IEC) 60721-3-1
- Temperature
-25 °C ... +70 °C corresponds to
1K4 but highest temperature
+70 °C
- Mechanical stress
1M2
• Transport
3/22
DIN EN (IEC) 60721-3-3
DIN EN (IEC) 60721-3-2
- Temperature
-25 °C ... +70 °C corresponds to
2K3
- Mechanical stress
2M2
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
Water protection
EMC
DIN EN (IEC) 60529
IP65 for field devices
IP54 for panel mounting
Options
Second output signal
0/4 ... 20 mA linear to second
measured value or to temperature
DIN EN (IEC) 61326 and
NAMUR NE 21
Additional limit
1 x NO or NC contact selectable,
any assignment to measured value
or temperature
Parameter sets
4
Range signalling
Signalling of current measuring
range (3 contacts)
Cleaning contacts with timer
3, fitting control, cleaning and
flushing
Range switchover
4, parameterizable as desired using
range selection; external control
possible
Controller
2 floating contacts (instead of
limits) as PI controller
• pH electrode
pH 1 >1012 Ω,
pH 2 >1012 Ω
• Reference electrode
>1010 Ω
Electrical safety
DIN EN (IEC) 61010-1
Quality assurance system
DIN ISO 9001/EN 29000
Material of field housing
Macrolon (polycarbonate + 20%
glass fiber)
Material of panel housing
Aluminium
Permissible relative humidity
10 ... 95%, no condensation
Power supply
120 V AC (94 V ... 132 V),
48 ... 63 Hz, 10 VA
230 V AC (187 V ... 264 V),
48 ... 63 Hz, 10 VA
24 V AC (20 V ... 26 V),
48 ... 63 Hz, 10 VA
24 V DC (20 V ... 30 V), 8 VA,
protection class II (field housing)
Weight
2.5 kg field housing
2.0 kg panel mounting housing
HACH LANGE
3/23
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
Ordering data
Order No.
Analyzer SIPAN 34
fourwire system,
for pH or ORP measurements
microprocessor-based with illuminated
graphic display, membrane keyboard, trend
display, menu-based operation (5 languages),
logbook, temperature compensation,
1 parameter set,
1 signal output 0/4 to 20 mA,
1 alarm contact,
1 limit contact,
2 diagnostic contacts
7MA 1 0 3 4 Power supply
• 24 V DC/24 V AC, 48 ... 63 Hz
• 120 V AC, 48 ... 63 Hz
• 230 V AC, 48 ... 63 Hz
■■■■ 0 0 ■■ 0
0
1
2
Measuring procedure
• 1 x pH- or 1 x redox input
A
• 2 x pH inputs 1)
B
• 1 x pH- and1 x redox input or
2 x redox inputs 1)
C
Instrument design
• Field housing
• Panel housing 96 x 96
A
B
Without additional option
0
With second signal output 0/4 ... 20 mA, and
second limit
1
With four selectable parameter sets and three range
signalling contacts
2
With second signal output 0/4 ... 20 mA and with four
selectable parameter sets and three range signalling
contacts
3
Limits with controller function
• Without
• With
Automatic cleaning/flushing (3 contacts + timer for fitting, cleaning, flushing)
• Without
• With
Accessories/mounting
material
A
B
A
B
1) The measuring procedures B and C require analyzers with the additional
options 1 or 3, because the second output (for the second measured value)
would not be at disposal.
Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on request.
Please order together with the analyzer in cleartype.
3/24
HACH LANGE
Order No.
For mounting the analyzer on a
pipeline
Protective hood (SS, type No.
1.4571) with base plate
C79451A3177D12
Pipe clamp (SS, type No. 1.4571)
7MA85008DG
Base plate (SS, type No. 1.4571)
C79451A3177D11
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
■ Dimensional drawings
10
172
D-D
20.5
D
Æ 13
Æ 6.5
5
269
286±0.2 1)
306
94
105,5
D
0
R1
ca 30
16.5
94
152±0.2 1)
A
View A
PG 13.5
SW 24
PG 11
SW 22
1.7
19.5
26.5
80
17
Bushings (3 x PG 11)
knockout if required
1)
3 fixing bores (M6)
SIPAN 34 analyzer as field housing, dimensions in mm
HACH LANGE
3/25
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
16
1
30
90
15
96
15
100
90
1
90
9 11
15
96
0 ... 6
18
8
67
282
SIPAN 34 analyzer as panel mounting instrument, dimensions in mm
3/26
HACH LANGE
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
■ Schematics
Electric sensor connections for pH or redox potential measurement
SIPAN 34
7MA1034-.A..0-0..0
23
24
25
Pt100
Pt1000
ER
26
27
28 29
SIPAN 34
7MA1034-.A..0-0..0
30
23
Equipotential
bonding
pH or
redox
Comb. electrode with special cable *
Measured medium
24
25
26
27
Equipotential
bonding
Pt100
Pt1000
ER
28 29
30
Ref.
pH or
redox
Measured medium
*) Special cable means double screened cable (e.g. 7MA8500-8DP)
ER: alternative equivalent resistance 100-120 W
Electric connections
✍ Please look at the current product list attached, if the product is still available.
HACH LANGE
3/27
Liquid Analysis
Measuring equipment for pH value and redox potential
SIPAN 34
Electric sensor connections for redundant pH and/or redox potential measurement with sensor monitoring, 2 pH sensors in one measured medium
Electric sensor connections, on left for simultaneous pH or redox potential measurement, on right differential pH sensor with sensor monitoring
Note:
When the SIPAN 34 analyzer is used with two measuring electrodes (pH + pH, pH + ORP, ORP + ORP), observe that the two electrodes
and the temperature sensor are in the same medium because only one reference electrode is used for both measuring electrodes. the two
measuring electrodes (pH + pH, pH + ORP) always must be calibrated together.
✍ Please check availability within attached product list.
3/28
HACH LANGE
Analyzer for
Dissolved Oxygen
SIPAN 32 and SIPAN 32X
4/2
4/2
4/3
4/5
4/6
4/9
4/11
4/12
4/13
Overview
Benefits
Application
Design
Function
Technical data
Ordering data
Dimensional drawings
Schematics
HACH LANGE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Flüssigkeitsanalysengeräte
■ Overview
■ Benefits
The SIPAN 32 and SIPAN 32X measuring equipment is designed to
determine the concentration of oxygen in aqueous solutions within
wide concentration ranges.
SIPAN 32 for the measurement of dissolved oxygen
4/2
HACH LANGE
Benefits of SIPAN 32 and SIPAN 32X
• Two-wire technology
• Sensor diagnosis
• Automatic Hold function
• Logbook to document all important events
• Local operation following NAMUR
• PROFIBUS PA or HART communication available
• Available as Ex variant (EEx ib [ia])
• Field housing IP65
• Second, passive output, freely parameterizable (for temperature
(analog) or pre-warning/purging function/limit (binary))
• Manual correction of atmospheric pressure during calibration.
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
■ Application
Very clean
Utilization
• Monitoring of very low oxygen concentrations in the steam circuit
of steam generating plants to prevent corrosion
• Checking of the oxygen content of food, especially for monitoring
storage life in the drinks industry
• Oxygen concentration as a decisive parameter for the environmental analysis of rivers and lakes
• Oxygen measurements in sewage treatment plants up to very
high concentrations in the aeration tank
• Monitoring of the O2 requirement of microorganisms in biotechnology
• Checking the oxygen concentration in chemical processes, also
in potentially explosive atmosphere.
1 µg/l
Product characteristics
• Almost independent of flow rate (minimum flow only 0.005 m/s),
dependent on sensor
• Extremely long service life
• Automatic sensor monitoring and regeneration display
• Fast replacement of membrane as result of robust special membrane, insensitive to contamination
• O2 sensor for food applications can be sterilized and can be fitted
in a bypass or inline using an attachment fitting or a replacement
fitting
• Single-point calibration of sensor using air (sensor is free of residual current)
• No calibration liquid required
• Design with explosion protection for zone 1.
1 mg/l
10 mg/l
Ultra-pure water
60 mg/l
Dirty
50 µg/l
Waste water, fish farming
20 mg/l
Sterilizable
1 µg/l
Chemistry, food & beverage
1 µg/l
10 µg/l
100 µg/l
1 mg/l
10 mg/l
100 mg/l
Measuring equipment for dissolved oxygen, selection table according to fields of application
Measurement of dissolved oxygen in water
• The amount of dissolved oxygen in water may be important for
various reasons
• We use the polarographic measuring procedure for the different
fields of application for oxygen measurements which differentiate
by three to four orders of magnitude.
Measurement of dissolved oxygen in boiler feedwater
(ultrapure water)
Measured medium with low concentrations
of 1 µg/l to 10 mg/l dissolved oxygen
It is important that there is as little oxygen as possible in the water
of steam circuits of large power plants to prevent damage caused
by corrosion. The dissolved oxygen should be monitored there with
an order of magnitude µg O2/l water.
In these water/steam circuits, water with an extremely low contamination is required to prevent deposits which could lead to a reduction in economy and to faults. Such ultra-pure water is aggressive.
A layer of insoluble Fe3O4 is formed in the pipelines and therefore
builds up a protective layer. However, if dissolved oxygen is present
in a water/steam circuit, it is assumed that this protective layer is
attacked at the high temperatures and pressures which exist, and
that damage due to corrosion may result following further effects of
the dissolved oxygen.
Such trace measurements can only be carried out with great difficulty in a laboratory since sampling completely free of oxygen is difficult. Furthermore, the time intervals are usually too great if it is
considered that even completely invisible leaks can already easily
lead to a dangerous oxygen concentration of 100 µg O2/l which
would probably be detected too late by occasional laboratory measurements.
HACH LANGE
4/3
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Therefore industrial measuring instruments are appropriate for such
cases. Such instruments should require little maintenance to provide economic use and high operational reliability, and they must
also be highly sensitive trace analyzers.
The feedwater inlet upstream of the boiler is recommendable as the
measuring location, although measurements are occasionally also
made upstream of the feedwater pump because it is then unnecessary to have expansion equipment.
A second measuring location is the outlet line from the condenser.
The measurement is important here in order e.g. to rapidly detect
leaks on the condenser and the machine.
Similar or even higher water quality demands are placed during
semiconductor (chip) manufacturing.
Measurement of dissolved oxygen in rivers, lakes and
waste water
Measured medium with medium concentrations
of 50 µg/l to 60 mg/l dissolved oxygen
In this case, the dissolved oxygen in the water is essential to preserve life. Sufficient quantities of dissolved oxygen must be present
in rivers or lakes to preserve animal life and the biological equilibrium. In sewage treatment plants, oxygen must even be introduced
into the waste water to preserve and promote bacterial cultures for
the biological decomposition of contaminants in the water. Economical operation is also an important factor here. In these cases, the
oxygen concentration has an order of magnitude of several mg O2/l.
The increasing contamination of rivers and lakes by toxic materials,
organic and inorganic ballast, and by increased water temperatures
resulting from the use of cooling plants means that water monitoring is becoming increasingly important.
The main task of such monitoring is to guarantee biological equilibrium by using appropriate measures. This equilibrium is essential to
preserve animal life and to prevent the contamination of surface
water for drinking and service purposes.
4/4
HACH LANGE
One of the most important measured variables is the dissolved oxygen, where concentrations of several mg O2/l must be measured.
In addition to mechanical cleaning, biological clarification is used in
sewage treatment plants to break down organic compounds using
bacteria. A dissolved oxygen concentration of approx. 1.5 to 2.5
mg O2/l must be present in the waste water to activate and sustain
this treatment process. This oxygen is passed mechanically into the
aeration tanks using air.
The energy required for input of air/oxygen is quite significant, and
the amount of oxygen entered should therefore be carried out as
economically as possible. Measurement of the dissolved oxygen in
the waste water is therefore necessary.
Measurement of dissolved oxygen in the food industry
and in biotechnology process plants
Measured medium with medium concentrations
of 10 µg/l to 20 mg/l dissolved oxygen
A long storage life for manufactured products is becoming increasingly important in the food industry for economy reasons. For this
reason, the individual parameters must be strictly checked in the
production plants.
The amount of dissolved oxygen is of decisive importance for the
storage life of a number of products. For example, a typical value
for freshly filled beer is 20 µg/l, and a lower amount increases its life.
This is particularly important if beer is brewed according to the German beer purity regulations which forbid the addition of conservation agents.
It is important to exactly control the process sequence of biotechnology plants. An important variable is the amount of dissolved oxygen. Since food and biotechnology plants are sensitive to foreign
germs, all used components must have a sterilizable design.
Cleaning using steam sterilization is carried out regularly at defined
intervals. It is therefore important to have a temperature-stable design of the wetted parts materials. Our stainless steel components
have been proven as suitable for this technology.
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
■ Design
Ex zone 0*)
Ex zone 1**)
Ex zone 2**)
Not Ex zone
Not Ex zone
SIPAN 32 not Ex zone
SIPAN 32X Ex zone 1
Ex zone 2
Keyboard
Display
Mains
EPROM
O2
4 ... 20 mA
Isolating power
supply
HART
interface
4 ... 20 mA
EEPROM
O2
Mains
A/D
D/A
Temperature
D/D
Temperature
0/4 ... 20 mA
or
Limit signal
0/4 ... 20 mA
or
Cleaning signal
0/4 ... 20 mA
or
Warning
0/4 ... 20 mA
PROFIBUS PA
Isolating power
supply
0/4 ... 20 mA
DP/PA coupler
DP/PA link
Basic version
Option
External device
*) Only sensors with ATEX approval
and in conjunction with SIPAN 32X
**) Only with SIPAN 32X
SIPAN 32 and SIPAN 32X analyzers, mode of operation
The SIPAN 32 and SIPAN 32X measuring equipment consist of:
• a sensor
• a flow, immersion or replacement fitting
• a temperature sensor
• a SIPAN 32 or SIPAN 32X analyzer.
SIPAN 32 and SIPAN 32X are analyzers of the new two-wire generation with state-of-the-art micro-power technology with microprocessor control and multi-segment display.
The SIPAN 32 and SIPAN 32X analyzers are optionally available
with special features for process use.
The SIPAN 32 and SIPAN 32X analyzers are available in field
housing.
They contain the analog and digital data processing functions for
the signal delivered by the sensor.
A SIPAN 32 or SIPAN 32X analyzer can be parameterized for all
measuring ranges.
HACH LANGE
4/5
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Basic analyzer
Options
Inputs
O2 value
HART or
PROFIBUS PA interface
■ Function
Water free of oxygen absorbs oxygen when in contact with atmospheric air depending on the atmospheric pressure and the temperature until a state of equilibrium has been reached, i.e. the partial
pressure of oxygen in the water is equal to that of the surrounding air.
The sensors which can be combined with the SIPAN 32 analyzers
operate according to the polarographic principle.
Temperature
The so-called Clark sensors basically consist of a precious metal
working electrode (cathode), a silver reference electrode (anode)
and a membrane which is permeable to oxygen.
Outputs
Analog output
4 ... 20 mA with
alarm > 21 mA
2nd analog output for
temperature or contact for
flushing function or limit value
or warning
(not for PROFIBUS PA)
Functions
Measuredvalue processing
The signals delivered by the analog input amplifiers are processed
into a temperature-compensated value by the digital data processing function.
Oxygen
Oxygen is reduced by the polarization voltage present between the
working and reference electrodes according to the simplified equation:
O2 + 2H2O + 4e- → 4OH-
The analyzer delivers a constant polarization voltage at the cathode. The O2 molecules diffusing through the FEP or PTFE membrane are reduced at the gold cathode, and at the same time anode metal (silver) passes into solution in the electrolyte following
oxidation.
Thus the circuit between the anode and cathode is closed by the
passage of ions via the electrolyte.
The resulting current is proportional to the partial pressure of oxygen in the measured medium and is measured by the amplifier.
The quantity of oxygen diffusing through the membrane per unit of
time not only depends on the external partial pressure of oxygen
but also on the temperature of the membrane.
To permit temperature compensation, a temperature sensor (NTC
thermistor) is fitted in the oxygen sensor such that it is connected
thermally to the measured medium and can therefore signal its temperature to the analyzer.
The electrons are supplied by the silver reference electrode, simplified according to:
SIPAN 32, SIPAN 32X analyzer
4Ag → 4Ag+ + 4eTemperature compensation
U
Oxygen:
Output
signal
I
The input signal supplied by the sensor is converted into a standardized output signal by a range-dependent amplifier circuit.
Temperature:
The temperature of the measured medium is converted into a standardized output signal corresponding to a measuring range of the
sensor. An NTC resistor is fitted in the sensor as the thermometer.
Measured
medium
Measured
medium
Gold working
electrode
(cathode)
Silver counter
electrode
Elektrolyte
Membrane
O2
O2
O2
O2
Mode of operation of oxygen sensors with two-electrode system
4/6
HACH LANGE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Calibration and regeneration of the oxygen sensors
The sensor is calibrated using a single point (sensor is free of residual current), preferably using air. The sensor is adjusted for 100%
saturation.
The calibration cycle depends on the conditions of use and the required accuracy.
The sensor must be regenerated, i.e. the electrolyte must be refilled
and the membrane head replaced, if it can no longer be calibrated
or if the membrane is damaged.
The microprocessor analyzer operates with a non-linear temperature characteristic which is individually matched to the sensor to
permit temperature compensation.
Special characteristics of SIPAN 32
• Two-wire analyzer with state-of-the-art micro-power technology
• Extremely simple field installation with only two wires
• Menu-based operation with understandable symbols (based on
IEC)
• Complete local operation with directly accessible keypad with 8
keys and large, clearly-arranged multi-segment display
• Display of µg/l, mg/l, mbar, ppb, hPA, % saturation
• Additional permanent temperature display selectable in
°C or °F
• Limit monitoring
• Software clock
• Logbook with entry of faults or calibration procedures with date
and time
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA
• Automatic HOLD function
• Comprehensive fault diagnosis system
• 3 operating levels with coded protection for monitoring, routine
and specialists
• Selectable tests for: display, keys, RAM, EPROM, EEPROM
• Output of defined current values for test purposes
• Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection
• Robust field housing (IP65/NEMA 4X) with four cable screwed
glands for easy connection.
Special characteristics of SIPAN 32X
• Intrinsic safe operation
• Analyzers with type of protection "Increased intrinsic safety" EEx
ib[ia] can be used within the potentially explosive atmospheres
(zone 1, CENELEC)
• With a corresponding Ex approval the measuring electrode can
also be used in Zone 0.
Product characteristics of SIPAN 32, communication
variants
Device with 4 ... 20 mA output
• Electrical isolation (test voltage 500 V AC)
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA
• Optional second passive output, freely-parameterizable as additional current output, for temperature or contact for flushing function or limit or warning (pre-alarm).
Device with 4 ... 20 mA output and HART communication
• Completely parameterizable from control system via only one
two-wire cable
• Additional communication via PC
• Output signal 4 to 20 mA
• Fault or limit output > 20 mA (additional digital status transmission via HART protocol)
• Central access from control system (OS, ES) to any field device
using the SIEMENS PCS 7 control system
• Uniform operator control and monitoring of all field units (inclusive
linked host units) when using SIMATIC PDM
• Optional second passive output, freely-parameterizable as additional current output, for temperature or contact for flushing function or limit or warning (pre-alarm).
Device with PROFIBUS PA communication
• SIPAN 32 PA with bus connection to IEC 61158-2 and
EN 50170, Part 4
• Fixed bus current limitation in case of fault
• Data transmission and device supply via common bus connection
• Communication via PROFIBUS PA (Profile B, Version 3.0);
thereby all settings completely parameterizable (up to three synchronous measured values, measuring range, limits, sensor diagnostic, operation simulation, etc.)
• Quality indication to the measured values: status with limits
• Full measured-value dynamics (discontinuation of measuredrange parameters)
• Central access from control system (OS, ES) to each field device
using the SIEMENS PCS 7 control system
• Uniform operator control and monitoring of all field units (inclusive
linked host units) when using SIMATIC PDM
• Possibility of a further diagnosis with increased disponibility of
plant parts
• Savings of installation costs
• Interoperability (replacement with parameter conservation possible)
• Possibility of automatic tracking of the plant documentation
• Possibility of plant optimizing during operation.
Parameter sets (option)
The analyzer has four parameter sets for four methods that can be
set independently from each other. This allows an optimal adaptation in a process when different media have to be measured.
Switchover to the correspondent parameter set can be controlled
externally (via HART or PROFIBUS PA).
HACH LANGE
4/7
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
SIPAN 32, SIPAN 32X analyzer, display and control panel
4/8
HACH LANGE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
■ Technical data
Output signal
electrically isolated from sensor,
4 to 20 mA linear to measured
value or bilinear to measured value
(2 linear partial ranges with a knee
at 12 mA), see figure
Max. permissible load in Ω
R=
(U [power supply] – 14 V) / 0.02 A
Display
• Measured value
Four 16-mm digits
• Temperature
Four 8-mm digits
• Text display
Five digits
• Others
Symbol displays
Test voltage
500 V AC, 50 Hz, 1 min
• Input display
Symbols
Power supply
14 V DC (14 V ... 30 V), 0.8 W, protection class II
Coding
3 coding levels for operations
(display level, user level, specialist
level)
Logbook
Unit
µg/l, mg/l, mbar, ppb, hPa,
% saturation
Automatic recording of warning
and failure messages with date
and time,
20 entries with overflow,
non-erasable
Temperature units
Celsius, Fahrenheit
Data storage
>10 years (EEPROM)
Measuring range
observe technical data of sensors
Device self-test
Measuring span (expansion)
Any, but at least 10% of smallest
measuring range
Testing of RAM, EPROM,
EEPROM, display, keyboard
Clock
Software clock
Output range
Optionally selectable between
0 and maximum full-scale value
Identification
CE marking
Temperature compensation
Dependent on sensor type
Measuring range for temperature
-50 ... +150 °C, dependent on
sensor type
Measuring span for temperature
Any, but at least 10% of smallest
measuring range
Compensation of atmospheric
pressure
Manual input
Sensor calibration
Manual using air
Temperature and mechanical stress
• Operation
-20 °C ... +60 °C corresponds
to 3K6 but lowest temperature
–20 °C without condensation
- Mechanical stress
3M2
• Storage
- Temperature
Error limits
• Oxygen measurement
(at rated conditions)
<1.5% of measured value
• Temperature
(at rated conditions)
<0.3 K
Influencing effects
on measured value
According to DIN IEC 746, Part 1
- Mechanical stress
• Transport
• Repeatability
<0.2% of full-scale value
• Linearity
<0.3% of full-scale value
• Ambient temperature
<0.2%/10 K
DIN EN (IEC) 60721-3-3
- Temperature
DIN EN (IEC) 60721-3-1
-25 °C ... +70 °C corresponds
to 1K4 but highest temperature
+70 °C
1M2
DIN EN (IEC) 60721-3-2
- Temperature
-25 °C ... +70 °C corresponds
to 2K3
- Mechanical stress
2M2
Water protection
DIN EN (IEC) 60529
IP65 for field devices
EMC
DIN EN (IEC) 61326 and
NAMUR NE 21
• Power supply
<0.2% of full-scale value
Electrical safety
DIN EN (IEC) 61010-1
• Load
<0.1%/100 Ω
Quality assurance system
DIN ISO 9001/EN 29000
• Zero error
<0.2% of measured value,
dependent on sensor type
Material of field housing
Macrolon (polycarbonate + 20%
glass fiber)
• Salinity correction
Possible
Permissible relative humidity
10 ... 95%, no condensation
Weight
2.5 kg, field housing
Options
2nd passive analog output
0/4 to 20 mA linear to temperature,
or contact for flushing function or
limit or warning (pre-alarm)
SIPAN 32X with explosion protection
Explosion protection to ATEX Guideline 94/9/EC, DIN EN 50014 and
DIN EN 50020
Type of protection “Intrinsic safety”,
II (1) 2 G EEx ib[ia] IIC T4
Permissible ambient temperature
during operation
-20 ... +60 °C
Output signal circuit
With type of protection Intrinsic
safety EEx ia IIC only for connection to certified intrinsically-safe circuits with the following maximum
values:
Ui = 30 V, Ii = 100 mA,
Pi = 750 mW, Ri = 300 Ω
HACH LANGE
4/9
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Communication
Option HART
mA
PC/laptop or HART communicator
with SIPAN 32 and SIPAN 32X
analyzer
Load with connection of HART
modem
250 ... 500 Ω
Load with connection of HARTcommunicator
250 ... 500 Ω
Line
Two-wire, screened: ≤ 1.5 km
Protocol
HART, version 5.1
20
12
Option PROFIBUS PA
Power supply, bus voltage
Supplied by bus, 9 to 32 V (non
Ex), 9 to 24 V for intrinsically safe
operation
Power consumption of the unit
I = 13 mA ± 1 mA
• Max. current increase in case
of error
I + 3 mA (electronic current limitation) (Imax. = 16 mA)
I + 27 mA (additional fuse)
(Imax. = 40 mA)
• Communication
PROFIBUS PA
(IEC 61158 CPF3 CP3/2)
Physical bus:
IEC 61158-2 MBP(-IS)
Polarity independent
• C2 connections
4 connections to Master Class 2
are supported
• Unit profile
PROFIBUS PA, Profile B,
Version 3.0
• Unit address
126 at delivery
4/10
HACH LANGE
4
KA
KK
KA Start-of-scale value
KK Knee
KE Full-scale value
Linear and bent characteristic
KE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Ordering data
Order No.
Ordering data
Order No.
SIPAN 32 analyzer
twowire system, for the measurement
of dissolved oxygen
microprocessor-controlled, membrane keyboard
with LC display, menu control, measured-value
display, logbook, concentration display, temperature
compensation, 1 parameter set,
in field housing
7MA 3 0 4 0 SIPAN 32X analyzer with Ex protection,
intrinsicallysafe version,
II 2 (1) G EEx ib [ia] II C T4,
twowire system, for the measurement
of dissolved oxygen
microprocessor-controlled, membrane keyboard
with LC display, menu control, measured-value
display, logbook, concentration display, temperature
compensation, 1 parameter set,
in field housing
7MA 3 0 4 1 8 A■
Standard version,
1 signal output: 4 to 20 mA
without interface
1 signal output: 4 to 20 mA,
with HART interface
2 signal outputs,
with HART interface:
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to 20 mA
temperature or switching function for limit or
flushing or warning
PROFIBUS PA, 4 parameter sets
A
B
C
D
Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on
request.
Please order together with the analyzer in cleartype.
Order No.
Isolating power supply
(see FI 01, Part 6, for technical
data)
Standard version,
1 signal output: 4 to 20 mA
without interface
1 signal output: 4 to 20 mA,
with HART interface
2 signal outputs,
with HART interface:
• 1st signal output: measured value 4 to 20 mA
• 2nd, passive signal output: 0/4 to 20 mA
temperature or switching function for limit or
flushing or warning
PROFIBUS PA, 4 parameter sets
Accessories/mounting mate
rial
8 A■
A
B
C
D
Order No.
For mounting the analyzer or the
isolating block on a pipeline
HART version with Ex protection
EEx ia IIC, Smart, with 24 V DC
power supply, p.c.b., single locking
7NG41221AA10
HART version with Ex protection
EEx ia IIC, Smart, with 95-253 V
AC power supply, compact subassembly, DIN rail mounting
7NG41221BA10
Protective hood (SS, type No.
1.4571) with base plate
C79451A3177D12
Pipe clamp (SS, type No. 1.4571)
7MA85008DG
Base plate (SS, type No. 1.4571)
C79451A3177D11
HACH LANGE
4/11
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
■ Dimensional drawings
10
172
D-D
20.5
D
Æ 13
Æ 6.5
5
269
286±0.2 1)
306
94
105,5
D
0
R1
ca 30
16.5
94
152±0.2 1)
A
Bushings (3 x PG 11)
knockout if required
SIPAN 32 analyzer, dimensions in mm
4/12
HACH LANGE
PG 13.5
SW 24
PG 11
SW 22
1.7
19.5
26.5
80
17
View A
1)
3 fixing bores (M6)
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
■ Schematics
SIPAN 32, SIPAN 32X analyzer
2
+
3
4
5
+
6
-
7
8
-
9
+
10 11
12
13 14
15 16
17
18 19
ö
ý
ø
ö
ý
ø
ö
ý
ø
1
-
20 mA
24 V DC
passive1)
4-20 mA
Option not
HART used PROFIBUS PA
Sensors
ö
ý
ø
SIPAN 32, SIPAN 32X
SIPAN 32, SIPAN 32X
NTC
NTC
O2 sensor, Oxyferm VP ®
7MA3100-8HD
O2 sensor
7MA3100-8CA
WH
YE/GN
ö
ý
ø GN
BU
YE
Screen
RD
12 13 14 15 16 17 18 19
Transp.
12 13 14 15 16 17 18 19
BN
SIPAN 32, SIPAN 32X
Core
SIPAN 32, SIPAN 32X
NTC
NTC
O2 sensor, Oxysens ®
7MA3100-8HG
1)
BK
BK
RD
WH
GN
WH
RD
Transp.
YE/GN
Screen
12 13 14 15 16 17 18 19
12 13 14 15 16 17 18 19
O2 sensor, Oxygold G ®
7MA3100-8HA
Not used with PROFIBUS version
Legend of colors
OR
VI
orange violet
GY
gray
WH
white
BN
brown
BU
blue
YE
yellow
GN
green
BK
black
SIPAN 32 or SIPAN 32X analyzer, electric connections
HACH LANGE
4/13
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 32 and SIPAN 32X
Communication between SIPAN 32 with HART modem and PC
4/14
HACH LANGE
Analyzer for
Dissolved Oxygen
SIPAN 34
4/16
4/16
4/17
4/19
4/20
4/23
4/25
4/26
4/28
Overview
Benefits
Application
Design
Function
Technical data
Ordering data
Dimensional drawings
Schematics
HACH LANGE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
Flüssigkeitsanalysengeräte
■ Overview
■ Benefits
The SIPAN 34 measuring equipment is designed to determine the
concentration of oxygen in aqueous solutions within wide concentration ranges.
SIPAN 34 for the measurement of dissolved oxygen
4/16
HACH LANGE
Benefits of SIPAN 34
• Four-wire technology
• Sensor diagnosis
• Automatic Hold function
• Logbook to document all important events
• Local operation following NAMUR
• Three freely-programmable relays
• Field housing IP65
• Panel housing IP54
• Second output for temperature (option)
• Automatic atmospheric pressure correction during calibration.
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
■ Application
Very clean
Utilization
• Monitoring of very low oxygen concentrations in the steam circuit
of steam generating plants to prevent corrosion
• Checking of the oxygen content of foods, especially for monitoring storage life in the drinks industry
• Oxygen concentration as a decisive parameter for the environmental analysis of rivers and lakes
• Oxygen measurements in sewage treatment plants up to very
high concentrations in the aeration tank
• Monitoring of the O2 requirement of microorganisms in biotechnology.
1 µg/l
Product characteristics
• Almost independent of flow rate (minimum flow only 0.005 m/s),
dependent on sensor
• Extremely long service life
• Automatic sensor monitoring and regeneration display
• Fast replacement of membrane as result of robust special membrane, insensitive to contamination
• Automatic correction of atmospheric pressure during calibration
• O2 sensor for food applications can be sterilized and can be fitted
in a bypass or inline using an attachment fitting or a replacement
fitting
• Single-point calibration of sensor using air (sensor is free of
residual current)
• No calibration liquid required.
1 mg/l
10 mg/l
Ultra-pure water
60 mg/l
Dirty
50 µg/l
Waste water, fish farm
20 mg/l
Sterilizable
1 µg/l
Food
1 µg/l
10 µg/l
100 µg/l
1 mg/l
10 mg/l
100 mg/l
Measuring equipment for dissolved oxygen, selection table according to fields of application
Measurement of dissolved oxygen in water
• The amount of dissolved oxygen in water may be important for
various reasons
• We use the polarographic measuring procedure for the three different fields of application for oxygen measurements which differentiate by three to four orders of magnitude.
Measurement of dissolved oxygen in boiler feedwater
(ultrapure water)
Measured medium with low concentrations
of 1 µg/l to 10 mg/l dissolved oxygen
It is important that there is as little oxygen as possible in the water
of steam circuits of large power plants to prevent damage caused
by corrosion. The dissolved oxygen should be monitored there with
an order of magnitude µg O2/l water.
In these water/steam circuits, water with an extremely low contamination is required to prevent deposits which could lead to a reduction in economy and to faults. Such ultra-pure water is aggressive.
A layer of insoluble Fe3O4 is formed in the pipelines and therefore
builds up a protective layer. However, if dissolved oxygen is present
in a water/steam circuit, it is assumed that this protective layer is
attacked at the high temperatures and pressures which exist, and
that damage due to corrosion may result following further effects of
the dissolved oxygen.
HACH LANGE
4/17
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
Such trace measurements can only be carried out with great difficulty in a laboratory since sampling completely free of oxygen is difficult. Furthermore, the time intervals are usually too great if it is
considered that even completely invisible leaks can already easily
lead to a dangerous oxygen concentration of 100 µg O2/l which
would probably be detected too late by occasional laboratory measurements.
The main task of such monitoring is to guarantee biological equilibrium by using appropriate measures. This equilibrium is essential to
preserve animal life and to prevent the contamination of surface
water for drinking and service purposes.
Therefore industrial measuring instruments are appropriate for such
cases. Such instruments should require little maintenance to provide economic use and high operational reliability, and they must
also be highly sensitive trace analyzers.
In addition to mechanical cleaning, biological clarification is used in
sewage treatment plants to break down organic compounds using
bacteria. A dissolved oxygen concentration of approx. 1.5 to 2.5
mg O2/l must be present in the waste water to activate and sustain
this treatment process. This oxygen is passed mechanically into the
aeration tanks using air.
The feedwater inlet upstream of the boiler is recommendable as the
measuring location, although measurements are occasionally also
made upstream of the feedwater pump because it is then unnecessary to have expansion equipment.
A second measuring location is the outlet line from the condenser.
The measurement is important here in order e.g. to rapidly detect
leaks on the condenser and the machine.
Similar or even higher water quality demands are placed during
semiconductor (chip) manufacturing.
Measurement of dissolved oxygen in rivers, lakes and
waste water
Measured medium with medium concentrations
of 50 µg/l to 60 mg/l dissolved oxygen
In this case, the dissolved oxygen in the water is essential to preserve life. Sufficient quantities of dissolved oxygen must be present
in rivers or lakes to preserve animal life and the biological equilibrium. In sewage treatment plants, oxygen must even be introduced
into the waste water to preserve and promote bacterial cultures for
the biological decomposition of contaminants in the water. Economical operation is also an important factor here. In these cases, the
oxygen concentration has an order of magnitude of several mg O2/l.
The increasing contamination of rivers and lakes by toxic materials,
organic and inorganic ballast, and by increased water temperatures
resulting from the use of cooling plants means that water monitoring is becoming increasingly important.
4/18
HACH LANGE
One of the most important measured variables is the dissolved oxygen, where concentrations of several mg O2/l must be measured.
The energy required for input of air/oxygen is quite significant, and
the amount of oxygen entered should therefore be carried out as
economically as possible. Measurement of the dissolved oxygen in
the waste water is therefore necessary.
Measurement of dissolved oxygen in the food industry
and in biotechnology process plants
Measured medium with medium concentrations
of 10 µg/l to 20 mg/l dissolved oxygen
A long storage life for manufactured products is becoming increasingly important in the food industry for economy reasons. For this
reason, the individual parameters must be strictly checked in the
production plants.
The amount of dissolved oxygen is of decisive importance for the
storage life of a number of products. For example, a typical value
for freshly filled beer is 20 µg/l, and a lower amount increases its life.
This is particularly important if beer is brewed according to the German beer purity regulations which forbid the addition of conservation agents.
It is important to exactly control the process sequence of biotechnology plants. An important variable is the amount of dissolved oxygen. Since food and biotechnology plants are sensitive to foreign
germs, all used components must have a sterilizable design.
Cleaning using steam sterilization is carried out regularly at defined
intervals. It is therefore important to have a temperature-stable design of the wetted parts materials. Our stainless steel components
have been proven as suitable for this technology.
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
■ Design
SIPAN 34
Not Ex zone
Display
Keyboard
O2
0/4 ... 20 mA
EPROM
EEPROM
D/A
Temperature
0/4 ... 20 mA
O2
Limit 1
Limit 2
Diagnosis: alarm
A/D
Warning
Function check
Temperature
Range signaling
D/D
Range signaling
Range signaling
or
Option
Cleaning
Mains
Fitting
Flushing
D/D
Range switching
Basic version
Option
SIPAN 34 analyzer, mode of operation
SIPAN 34 are analyzers of the four-wire generation with state-ofthe-art micro-power technology with microprocessor control and
illuminated graphic display.
The SIPAN 34 analyzers are optionally available with special features for process use.
The SIPAN 34 analyzer is available in two designs:
• in field housing and
• in panel housing 96 x 96.
They contain the analog and digital data processing functions for
the signal delivered by the sensor.
A SIPAN 34 analyzer can be parameterized for all measuring
ranges.
HACH LANGE
4/19
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
Measuredvalue processing
■ Function
The signals delivered by the analog input amplifiers are processed
into a temperature-compensated value by the digital data processing function.
Oxygen
Oxygen is reduced by the polarization voltage present between the
working and reference electrodes according to the simplified equation:
O2 + 2H2O + 4e- → 4OHThe electrons are supplied by the silver reference electrode, simplified according to:
Water free of oxygen absorbs oxygen when in contact with atmospheric air depending on the atmospheric pressure and the temperature until a state of equilibrium has been reached, i.e. the
partial pressure of oxygen in the water is equal to that of the surrounding air.
The sensors which can be combined with the SIPAN 34 analyzers
operate according to the polarographic principle.
The so-called Clark sensors basically consist of a precious metal
working electrode (cathode), a silver reference electrode (anode)
and a membrane which is permeable to oxygen.
4Ag → 4Ag+ + 4e-
A silver counterelectrode is also present in sensors with a threeelectrode system.
Temperature compensation
The analyzer delivers a constant polarization voltage at the cathode. The O2 molecules diffusing through the FEP or PTFE membrane are reduced at the gold cathode, and at the same time anode metal (silver) passes into solution in the electrolyte following
oxidation.
Oxygen:
The input signal supplied by the sensor is converted into a standardized output signal by a range-dependent amplifier circuit.
Temperature:
The temperature of the measured medium is converted into a standardized output signal corresponding to a measuring range of the
sensor. An NTC resistor is fitted in the sensor as the thermometer.
Basic analyzer
Thus the circuit between the anode and cathode is closed by the
passage of ions via the electrolyte.
The resulting current is proportional to the partial pressure of oxygen in the measured medium and is measured by the amplifier.
The quantity of oxygen diffusing through the membrane per unit of
time not only depends on the external partial pressure of oxygen
but also on the temperature of the membrane.
Options
Inputs
Dissolved oxygen Remote range switching for
4 parameter sets, thus access
to 4 complete parameter sets
for complete methods incl.
measuring ranges, limits,
Temperature
temp. compensation, hysteresis
Outputs
To permit temperature compensation, a temperature sensor (NTC
thermistor) is fitted in the oxygen sensor such that it is connected
thermally to the measured medium and can therefore signal its temperature to the analyzer.
SIPAN 34 analyzer
Mains
Analog output
2nd analog output for temperature
1 x failure
1 x limit
2 x NAMUR
contacts
Second
limit
U
Output
signal
I
Contacts
2 limits
with
control
function
3 x cleaning
or 3 x range
signaling
contacts
Power supply
Functions
Measured medium
Measured medium
Silver reference
electrode
Gold working
electrode
(cathode)
Silver counterelectrode
Electrolyte
Membrane
O2
O2
O2
O2
Mode of operation of oxygen sensors with three-electrode system
4/20
HACH LANGE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
Calibration and regeneration of the oxygen sensors
The sensor is calibrated using a single point (sensor is free of residual current), preferably using air. The sensor is adjusted for 100%
saturation.
The calibration cycle depends on the conditions of use and the
required accuracy.
The sensor must be regenerated, i.e. the electrolyte must be refilled
and the membrane head replaced, if it can no longer be calibrated
or if the membrane is damaged.
The microprocessor analyzer operates with a non-linear temperature characteristic which is individually matched to the sensor to
permit temperature compensation.
Special characteristics
• Four-wire analyzer with extremely easy operation
• Universal power supply (24 V AC/DC, 115 V AC, 230 V AC)
• Complete basic configuration
• Self-explanatory menu operation in plain text in five languages
(German, English, French, Spanish, Italian), without Instructions
Manual, help function
• Operation according to NAMUR, i.e. complete local operation
with directly accessible keypad with 8 keys and large, illuminated,
full-graphic display
• Display of µg/l; mg/l; mbar; ppb; hPa; % saturation
• Additional permanent bargraph of measuring range
• Graphic trend display of measured value
• Additional permanent temperature display in °C
• Output signal 0/4 to 20 mA, floating
• Freely-programmable, permanent measuring-point designation
(saves tag labels)
• Logbook with entry of faults or calibration procedures with date
and time
• Fault and limit contacts
• Maintenance switch with automatic HOLD function
• Comprehensive fault diagnosis and preventive maintenance system in plain text
• 3 operating levels with coded protection for monitoring, routine
and specialists
• Selectable tests for: keys, RAM, EPROM, EEPROM, display
• Output of freely-defined current values for test purposes
• Maximum electromagnetic compatibility according to CE and NAMUR, sensitive lightning protection
• Panel housing made completely of metal, CE safety for every control cabinet installation engineer
• Robust field housing (IP65) with seven cable screwed glands for
easy connection
• No special or expensive mounting set required for wall or panel
mounting.
Optional characteristics
• Second current output for measured value or temperature with
additional limit
• Four parameter sets with remote selection for complete methods,
not only for measuring ranges, e.g. also limits, physical dimensions, hysteresis
• Individual calibration of each parameter set possible
• Automatic cleaning function (3 relays) for cleaning, flushing, fitting
control with cyclic time input, maintenance and holding functions
• Two-point controller for pulse length (dosing valves) or pulse frequency (diaphragm pumps)
• Additional switching contacts for maintenance (function check)
and pre-alarm (warning).
An NTC thermistor is mounted in the sensor as thermometer.
Parameter sets (option)
The analyzer has four complete parameter sets for four methods
that can be set independently from each other. This allows an optimal adaptation in a process when different media have to be measured one after another with one line. Switchover to the correspondent parameter set can be controlled externally.
Method
number
1
2
3
4
Medium
Biofermenter Water
Biofermenter Water
Range
20 ... 30
30 ... 400
0.001 ... 1
0.001 ... 1
Dimension
µg/l
mg/l
µg/l
mg/l
Limit
30 max.
0.5 max.
300 min.
0.8 min.
Method switchover
HACH LANGE
4/21
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
SIPAN 34 analyzer, display and control panel
4/22
HACH LANGE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
■ Technical data
Influencing effects on mea
sured value
According to DIN IEC 746, Part 1
Display
graphic
• Repeatability
<0.2% of full-scale value
• Measured value
Four 15-mm digits or
trend display
5 bars, 3 mm high
• Linearity
<0.3% of full-scale value
• Ambient temperature
<0.2%/10 K
• Temperature, alarms, measuringpoint identification
3-mm digits
current output as bargraph
3 mm high
• Power supply
<0.2% of full-scale value
• Load
<0.1%/100 Ω
• Test voltage
500 V AC, 50 Hz, 1 min
• Operator input
8 lines of text
1 heading (inverted display) and 6
text lines, type size 4 mm
• Zero error
• Illumination
LED
Languages
5: German, English, French, Italian,
Spanish; selectable
<0.2% of measured value
± 1 µg/l (7MA3100-8CC, -8CE,
-8CD)
± 5 µg/l (other sensors),
dependent on sensor type
Coding
3 coding levels for operations (display level, user level, specialist
level)
• Salinity correction
Possible
Output signal
4 to 20 mA, floating, linear to measured value or bilinear to measured
value (2 linear partial ranges with a
knee at 12 mA), see figure
Dimension
µg/l, mg/l, mbar, ppb, hPa,
% saturation
Measuring span O2 (expansion)
Any, but at least 10% of smallest
measuring range
Max. permissible load in Ω
750
Current limiting
Output range
Optionally selectable between 0
and maximum full-scale value
0 or 21 mA (0 to 20 mA)
3.6 mA or 21 mA (4 to 20 mA)
Limit
Temperature compensation
Dependent on sensor type
1 NO or NC contact selectable,
adjustable hysteresis and response
time
Measuring range for temperature
Input: NTC: -10 to +140 °C,
dependent on sensor type
Alarm contact
1 alarm (failure)
Any, but at least 10% of measuring
range
Diagnostic contacts
Two, pre-alarm and maintenance
Relay contacts
Rating 24 V DC, 1 A
Compensation of atmospheric
pressure
Automatic, by barometric pressure
correction or manual
Logbook
Sensor calibration
Manual using air
Electrical isolation
Input and output are electrically
isolated
Automatic recording of warning
and failure messages with date and
time,
20 entries with overflow, non-erasable
Data storage
>10 years (EEPROM)
Device self-test
Testing of RAM, EPROM,
EEPROM, display, keyboard,
data can be called on display
Measuring span for temperature
Error limits
• Temperature
(at rated conditions)
<0.3 K
Clock
Software clock
Protection
According to IEC 79-15;
conformity certificate
Identification
CE marking
HACH LANGE
4/23
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
Temperature and mechanical stress
Options
• Operation
DIN EN (IEC) 60721-3-3
Second output signal
0/4 ... 20 mA, linear to temperature
-20 °C ... +60 °C corresponds to
3K6 but lowest temperature
–20 °C without condensation
-5 °C ... +70 °C corresponds to
3K3 but highest temperature
+70 °C for panel mounting
Additional limit
1 x NO or NC contact selectable,
any assignment to measured value
or temperature
Parameter sets
4
Range signalling
Signalling of current measuring
range (3 contacts)
Cleaning contacts with timer
3, fitting control, cleaning and
flushing
Range switchover
4, parameterizable as desired using
range selection; external control
possible
Controller
2 floating contacts (instead of
limits) as PI controller
- Temperature
- Mechanical stress
• Storage
3M2
DIN EN (IEC) 60721-3-1
- Temperature
- Mechanical stress
• Transport
-25 °C ... +70 °C corresponds to
1K4 but highest temperature
+70 °C
1M2
DIN EN (IEC) 60721-3-2
- Temperature
-25 °C ... +70 °C corresponds to
2K3
- Mechanical stress
2M2
Water protection
DIN EN (IEC) 60529
IP65 for field devices
IP54 for panel mounting
EMC
DIN EN (IEC) 61326 and
NAMUR NE 21
Electrical safety
DIN EN (IEC) 61010-1
Quality assurance system
DIN ISO 9001/EN 29000
Material of field housing
Macrolon (polycarbonate + 20%
glass fiber)
Panel mounting housing
Aluminium
Permissible relative humidity
10 ... 95%, no condensation
Power supply
120 V AC (94 V ... 132 V),
48 ... 63 Hz, 10 VA
230 V AC (187 V ... 264 V),
48 ... 63 Hz, 10 VA
24 V AC (20 V ... 26 V),
48 ... 63 Hz, 10 VA
24 V DC (20 V ... 30 V), 8 VA,
protection class II (field housing)
Weight
4/24
2.5 kg field housing
2.0 kg panel mounting housing
HACH LANGE
mA
20
10/12
0/4
KA
KK
KA Start-of-scale value
KK Knee
KE Full-scale value
Linear and bent characteristic
KE
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
Ordering data
Order No.
SIPAN 34 analyzer
fourwire system, for the measurement
of dissolved oxygen
microprocessor-based with illuminated
graphic display, membrane keyboard, menu-based
operation (5 languages), trend display, concentration
display, logbook, temperature compensation,
barometric pressure compensation,
1 parameter set,
1 signal output 0/4 to 20 mA,
1 alarm contact,
1 limit contact,
2 diagnostic contacts
7MA 3 0 3 4 Power supply
• 24 V DC/24 V AC, 48 ... 63 Hz
• 120 V AC, 48 ... 63 Hz
• 230 V AC, 48 ... 63 Hz
■■■■ 0 0 ■■ 0
A
• Waste water
B
• Ultra-pure water
C
0
With second signal output 0/4 ... 20 mA, and
second limit
1
With four selectable parameter sets and three range
signalling contacts
2
With second signal output 0/4 ... 20 mA and with four
selectable parameter sets and three range signalling
contacts
3
Automatic cleaning/flushing (3 contacts + timer for fitting, cleaning, flushing)
• Without
• With
For mounting the analyzer or the
isolating block on a pipeline
Protective hood (SS, type No.
1.4571) with base plate
C79451A3177D12
Pipe clamp (SS, type No. 1.4571)
7MA85008DG
Base plate (SS, type No. 1.4571)
C79451A3177D11
A
B
Without additional option
Limits with controller function
• Without
• With
Order No.
0
1
2
Measuring procedure
• Food
Instrument design
• Field housing
• Panel housing 96 x 96
Accessories/mounting mate
rial
A
B
A
B
Certificate according to DIN 55350-18-4.1.1 for SIPAN analyzer on
request.
Please order together with the analyzer in cleartype.
HACH LANGE
4/25
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
■ Dimensional drawings
10
172
D-D
20.5
D
Æ 13
Æ 6.5
5
S
I
P
A
N
269
286±0.2 1)
306
94
105.5
D
0
R1
ca 30
16.5
94
152±0.2 1)
A
PG 13.5
SW 24
SIPAN 34 analyzer as field housing, dimensions in mm
4/26
HACH LANGE
PG 11
SW 22
1.7
19.5
26.5
80
17
View A
1)
3 fixing bores (M6)
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
16
1
30
90
15
96
15
100
90
1
90
9 11
15
96
0 ... 6
18
8
67
282
SIPAN 34 analyzer as panel mounting instrument, dimensions in mm
HACH LANGE
4/27
Liquid Analysis
Analyzer for Dissolved Oxygen
SIPAN 34
■ Schematics
SIPAN 34
13 14
15 16
17
ö
ý
ø
Selection
Range 2
Signaling
Range 3
Selection
Range 3
ö
ý
ø
ö
ý
ø
ö
ý
ø
Limit 2
Functional check
Signaling
Range 4
Selection
Range 4
Temperature
Option
SIPAN 34
15
26
GY
27
28 29
30
ö
ý
ø
BN
VI
ö
ý
ø
25
NTC
O2 measurement
ö
ý
ø
Flushing
24
BU
ö
ý
ø
23
Fitting
ö
ý
ø
12 13 14
YE
ö
ý
ø
24 V AC
110 V AC
230 V AC
Pre-alarm
warning
ö
ý
ø
N
ö
ý
ø
L
Dissolved O2
ö
ý
ø
ö
ý
ø
Signaling
Range 2
ö
ý
ø
ö
ý
ø
Alarm
Failure
ö
ý
ø
ö
ý
ø
Limit 1
21 22
ö
ý
ø
ö
ý
ø
24 V DC
20
18 19
WH
12
GN
10 11
20 mA
9
20 mA
8
0/4
7
0/4
6
+24 V
5
+24 V
2
+
+24 V
1
-
Cleaning
O2 sensor
7MA3100-8CC,
7MA3100-8CD,
7MA3100-8CE,
7MA3100-8CF
NTC O2 measurement
O2 sensor, Oxysens ®
7MA3100-8HG
O2 sensor, Oxyferm VP ®
7MA3100-8HD
Legend of colors
RD
red
VI
violet
GY
gray
WH
white
SIPAN 34 analyzer, electric connections
4/28
HACH LANGE
BN
brown
BU
blue
YE
yellow
GN
green
BK
black
30
23
24
NTC
25
26
27
RD
28 29
WH
27
ö
ý
ø
O2 measurement
26
Screen
25
ö
ý
ø
YE
24
BK
23
ö
ý
ø
30
Screen
28 29
SIPAN 34
ö
ý Core
ø BN
27
YE/GN
ö
ý
ø
NTC
26
BU
25
ö
ýTransp.
ø RD
24
GN
WH
23
SIPAN 34
BK
SIPAN 34
O2 measurement
O2 sensor
7MA3100-8CA
28 29
30
Welcome to HACH LANGE!
Now you have the new SIPAN catalog.
Liquid analyzers of the SIPAN series for continuous
measurement of pH value/redox potential, conductivity
and dissolved oxygen supply important data to
process control systems or process control devices.
HACH LANGE is the market leader for Liquid Analytics
in the Water/Waste water sector. With product characteristics
such as explosion protection, etc. SIPAN products will ideally
complement the existing HACH LANGE product lines to an even
more extensive product range.
Whether field or laboratory analysis, samplers or process
measurement technology, HACH LANGE stands for the total
spectrum of water analysis - from visual methods to comprehensive
systems of reagents, measurement technology and accessories.
Solutions from HACH LANGE are tailor-made for every application
in wastewater, drinking water or process water - for reliable
control of operational processes and monitoring of legally prescribed
limit values.
HACH LANGE stands for water analysis from a single source.
For you, this means more products and applications, more experience
and on-site support than ever before
Your water-analysis team at
CATALOG
PROCESS MEASUREMENT TECHNOLOGY
SIPAN LIQUID ANALYSIS
DW
PW
HACH LANGE services.
Wastewater.
Made-to-measure solutions for
wastewater analysis in the
municipal and industrial sectors.
Ordering, information and advice:
[email protected]
Drinking water.
Assured safety — analysis for
suppliers and consumers.
Process water.
Process and laboratory analysis for
special analytical problems and
production conditions.
Seminars and workshops:
further training and exchange of
experience for analysis in practice.
On-site support by our technical
field staff.
Quality assurance, complete with
standard solutions, instrument checks
and test solutions.
www.hach-lange.com
up to date and secure, with downloads,
information and shop.
Assurance of legal compliance, together
with environmental protection through
collection of used reagents.
Reliable operation of all instruments
thanks to flexible service and
maintenance contracts.
Regular customer information by post
and email.
SIPAN 32 and 34
Controllers and Sensors for pH, Conductivity and O2
HACH LANGE GMBH
Willstätterstraße 11
D-40549 Düsseldorf
Tel. + 49 (0) 2 11 52 88-0
Fax + 49 (0) 2 11 52 88-143
[email protected]
www.hach-lange.com
DOC033.52.00421.Jan05
WW
Core capabilities.