Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Combustion O2 Analyzer
For additional information, please visit RosemountAnalytical.com
General Information
The 6888 is Rosemount Analytical’s latest
combustion flue gas oxygen analyzer. This product is
intended for measuring the flue gases resulting from
any combustion process. It utilizes the same heated
sensing technology as the O2 sensors found in most
automobiles. Contact Rosemount Analytical’s technical
support group at 800-433-6076 for any applications
other than measuring combustion flue (exhaust) gases.
This product utilizes an “in situ” sensor, i.e. the sensor
is placed at the end of a probe, and the probe extends
directly into the flue gas duct or stack a given length. The
sensor is like a thermocouple, generating it’s own millivolt
signal based on the difference between a reference gas
(ambient or instrument air – always 20.95% O2), and the
flue gases being measured. The probe has a transmitter
circuit card inside that controls an internal cell heater, and
also converts the raw millivolt signal into a linear 4-20mA
signal. This comprises a simple Oxygen analyzing system,
and one can set up and operate this system via HART®
communications. If this probe is a “direct replacement”
version, and will operate from a pre-existing electronics,
go to the traditional architecture link.
- Loss-of flame contact for powering down the
heater in the event of a flame-out condition in a
furnace.
- Extended process temperature capability. The
probe heater can be un-powered above 550°C
process temperatures, and the O2 will be calculated
based upon the process temperature, up to 825°C.
- Plugged diffuser diagnostic – part of the calibration procedure, this alarm detects an extended
“return to process” response time.
An optional Xi electronics provides convenient operator
interface for set-up , calibration, and diagnostics. HART
communications is still present when using the Xi.
- Stoichiometer – If a furnace goes into a reducing
condition (zero % O2), this feature will determine
how far.
System Architectures
- Programmable reference – Permits more accurate
readings at near-ambient O2 levels (20.95% O2).
Probe Only – The 6888 probe has the electronics in
the blue housing that controls the heater temperature,
and also amplifies the raw O2 millivolt signal to a linear
4-20 mA. The 4-20 mA signal lines can be run directly
to the control room, and also power the transmitter
electronics. There is no O2 display or keypad on the
probe, so set-up must be conducted through HART
communications via a 475 handheld communicator, or
via Asset Management Solutions (AMS).
Probe plus Xi electronics – The Xi electronics serve as
an operator interface unit, with a back-lit display and
keypad. It is capable of two channels, serving two 6888
probes. The Xi also carries these advanced features:
- Fully automatic calibration. Requires XS02Cal Auto
calibration system.
Traditional Architecture – Here there are no electronics inside the probe head, so the raw sensor signals
for the heater thermocouple and zirconium oxide O2
sensor are sent to a remote Xi Electronics. The Xi electronics will also directly apply power to the probe
heater in order to maintain the correct sensor temperature. This arrangement calls for a 7- conductor cable
to carry this power and the sensor signals. Maximum
length for this cable is 200 feet.
Wireless Capability – It should be noted that both the
transmitter electronics in the head of the probe and
the Xi electronics communicate over HART communications, and can implement wireless communications
via our Smart Wireless THUM adapter.
Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Figure 1. Typical System Package
Quick Start
Manual
Full Instruction
Manual DVD
Optional 6888Xi
Advanced Electronics
6888A Probe
Optional Traditional
Architecture Cable
Optional Mounting
or Adapter Plate
Optional Reference
& Calibration Gas
Accessories
Technical Support Hotline:
For assistance with technical problems, please call the Customer Support Center (CSC).
Phone: 1-800-433-6076
1-440-914-1261
In addition to the CSC, you may also contact Field Watch. Field Watch coordinates Emerson Process Management’s
field service throughout the U.S. and abroad.
Phone: 1-800-654-RSMT (1-800-654-7768)
Emerson Process Management may also be reached via the Internet through e-mail and the World Wide Web:
e-mail: [email protected]
World Wide Web: www.raihome.com
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Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Compare the configuration matrix below to the model number on the probe tag to confirm the features present in this
specific probe.
Model 6888A Product Matrix
6888A
O2 Transmitter
Code
1OXY
2OXY
Measurement
Oxygen, Standard Sensing Cell
Oxygen, Acid Resistant Stochiometric Sensing Cell
Code
1
2
3
4
5
6
7
8
9
A
B
Probe Length*
18" Probe, Standard Probe Tube
18" Probe, Standard Probe Tube with Abrasive Shield
18" Probe, Abrasion Resistant Probe Tube
3' Probe, Standard Probe Tube
3' Probe, Standard Probe Tube with Abrasive Shield
3' Probe, Abrasion Resistant Probe Tube
6' Probe, Standard Probe Tube
6' Probe, Standard Probe Tube with Abrasive Shield
6' Probe, Abrasion Resistant Probe Tube
9' Probe, Abrasion Resistant Probe Tube
12' Probe, Abrasion Resistant Probe Tube
Code
1
2
3
Diffuser
Snubber (500°C)
Ceramic (825°C)
Haselloy (700°C)
Code
1HT
5DR
6DRY
Housing & Electronics
Standard Housing, Transmitter Electronics, HART
Standard Housing, Direct Replacement, No Electronics
Standard Housing, Direct Replacement, YEW Electronics
Code
00
04
05
06
07
08
09
10
11
12
99
Mounting Plate
None
New Installation - Square Weld Plate with ANSI 2" - 150# Studs & Flange
New Installation - Square Weld Plate with DIN Studs & Flange
New Installation - Variable Insertion Mount; Abrasion Resistant Probe Only
New Installation - Variable Insertion Mount; Mounted to Existing OXT/WC Abrasive Shield
Mounts; Abrasion Resistant Probe Only
Adapter to Existing ANSI 3", 150# Flange
Adapter to Existing ANSI 4", 150# Flange
Adapter to Existing ANSI 6", 150# Flange
Adapter to Existing ANSI 3", 300# Flange
Adapter to Existing ANSI 4", 300# Flange
Special Adapter
Code
00
01
02
Manual Calibration Accessories
None
Calibration & Reference Gas Flowmeters & Reference Regulator/Filter
Calibration/Reference Panel
* Probes supplied with flanges with dual ANSI/DIN hole pattern. See Figure 3 for details.
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Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Model 6888Xi Product Matrix
6888Xi
Advanced Electronics
Code
1OXY
2OXY
3OXY
4OXY
Remote Type
Single Channel O2
Single Channel O2 with Flame Safety Interlock for Heater
Dual Channel O2
Single Channel O2, Traditional Architecture for 120V Probes
Code
00
01
02
Mounting
No Hardware
Panel Mount Kit with Gasket
2" Pipe / Wall Mount Kit
Code
00
10
11
12
13
14
15
16
Cable
No Cable
20' (6m) Cable
40' (12m) Cable
60' (18m) Cable
80' (24m) Cable
100' (30m) Cable
150' (45m) Cable
200' (60m) Cable
Code
00
01
02
Stoichiometer Function
No
Single Channel
Dual Channel
Code
00
01
02
Programmable Reference Function
None
Single Channel
Dual Channel
Code
00
01
02
Extended Temperature Function
None
Single Channel
Dual Channel
Code
00
01
02
4
Plugged Diffuser Diagnostic Function
None
Single Channel
Dual Channel
Quick Start Manual
Model 6888
IM-106-6888QS
Specifications
Transmitter/DR Probe
March 2012
Process Mounting Temperature: 200°C (392°F)
Maximum
General Purpose Certifications:
Measurement Specifications
Net O2 Range: 0 to 50% O2 user scalable, -2 to 50% O2
user scalable with stoichiometer
Accuracy in Oxidizing Conditions: ±0.75% of reading
or 0.05% O2 whichever is greater
Lowest Detectable Limit: 0.01% O2
Signal Stability: ±0.03% O2
Process Temperature Effect: less than 0.05% O2 from
100° to 700°C (212° to 1292°F)
System Speed of Response to Calibration Gas: Initial
response in less than 3 seconds T∞ in less than 8 seconds
Response to process gas changes will vary depending on
velocity and particulate loading of the diffuser
Calibration Validity: Presentation of calibration gases
matches the normal process to within ±0.02% O2
Accuracy in Reducing Conditions: ±10% of reading or
0.1% O2
System Response in Reducing Conditions:
going from oxidizing to reducing -T90 in 120 seconds
going from reducing to oxidizing -T90 in 30 seconds
Ambient Temperature Effect on Transmitter 4-20
mA Signal: less than 0.005% O2 per degree Celsius
Environmental Specifications
Transmitter Probe: Process-wetted materials are 316L
or 304 Stainless
Process Temperature Limits: 0° to 800°C (32° to
1472°F), 0° to 705°C (32° to 1300°F)
550° to 825°C (1022° to 1517°F)* with Xi “heaterless
operation” feature
*Reduced cell life can be expected if operated
continuously at temperatures above 705°C (1300°F)
[optional bypass and jacket accessories permit
operation to 1050°C (1922°F)]
Installation Specifications
Probe Mounting: Flanged, ANSI/DIN, Non-Pressure
Rated
Vertical or Horizontal
Probe Lengths and Approximate Shipping Weights:
18 in (457 mm)
3 ft (0,91 m)
6 ft (1,83 m)
9 ft (2,74 m)
12 ft (3,66 m)
15 ft (4,57 m)
18 ft (5,49 m)
25 lbs. (11,3 Kg)
27 lbs. (12,2 Kg)
38 lbs. (17,2 Kg)
70 lbs. (31,8 kg)
91 lbs. (41,3 kg)
111 lbs. (50,3 kg)
132 lbs. (59,9 kg)
Reference Air: 2 scfh (1 l/min), clean, dry, instrumentquality air (20.95% O2), regulated to 5 psi (34 kPa)
optional but recommended 9ft and longer
Calibration: Semi-automatic or automatic
Cal Gases: 0.4% O2 and 8% O2, balance N2
Calibration Gas Line: 300ft. (91 m) maximum length
Calibration Gas Flow: 5 scfh (2.5l/min) @ 25 psi
(172.4 kPa).
Heater Electrical Power: 120/240 VAC ±10%, 50/60
Hz, 260/1020 VA max, 1/2 in. - 14NPT conduit ports
4-20mA/HART Loop Power: 12-30 VDC (Loop power
from control room or 6888Xi)
Transmitter Electronics Housing: Low copper
aluminum Type 4X/IP66, with reference air exhaust
port piped to clean, dry area
Ambient Temperature Limits:
-40° to 70°C (-40° to 158°F), Transmitter
-40° to 85°C (-40° to 185°F) as measured by electronics
-40° to 90°C (-40° to 194°F), DR Probe
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Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Specifications 6888Xi
Installation Specifications
Measurement Specifications
Mounting: Panel, wall, or pipe.
Net O2 Range: 0 to 50% O2 user scalable, -2 to 50% O2
user scalable with stoichiometer
Reference Air: 2 scfh (1 l/min), clean, dry, instrumentquality air (20.95% O2), regulated to 5 psi (34 kPa)
Lowest Detectable Limit: 0.01% O2
Calibration: Semi-automatic or automatic
Signal Stability: ±0.03% O2
Cal Gases: 0.4% O2 and 8% O2, balance N2
Accuracy in Reducing Conditions: ±10% of reading or
0.1% O2
Traditional Architecture Cable 200 ft (61 m)
maximum length
System Response in Reducing Conditions going
from oxidizing to reducing -T90 in 120 seconds, going
from reducing to oxidizing -T90 in 30 seconds
4-20mA/HART Loop Power: 12 - 36 VDC (internal
nominal 24 VDC or external from control room.)
Ambient Temperature Effect on Xi 4-20 mA Signal:
less than 0.0025% O2 per degree Celsius
Environmental Specifications
Xi Advanced Electronics: Type 4X/IP66, Polycarbonate Material
Ambient Temperature Limits: -20°C to 50°C (-4°F to
122°F), -20°C to 70°C (-4°F to 158°F) as measured by
electronics
Xi LCD display:
Ambient Temperature Limits: -20°C to 55°C
(-4°F to 131°F)
Electrical Power for Xi: 120/240VAC ±10%, 50/60 Hz
General Purpose Certifications:
Power Consumption of Xi: 12 VA maximum or 1020
VA maximum with Traditional Architecture, 120V
Probes
Alarm Relay Outputs: Two provided - 2 Amperes, 30
VDC, Form-C
Optional Loss of Flame Input: Internally powered
input to remove heater power actuated via dry contact
output from user’s burner management system.
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Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Installation
WARNING
Install all protective equipment covers and safety ground leads after installation. Failure to install covers and ground leads could
result in serious injury or death.
WARNING
The X-STREAM O2 Transmitter can be installed in general purpose areas only. Do not install the transmitter or Xi in hazardous
areas or in the vicinity of flammable liquids.
Mechanical installation
Note that most combustion processes run only slightly negative or positive in pressure, so this flange is for mechanical
mounting, only. The probe is not rated for high pressures. If this is a new installation, a “weld plate” for welding to the
flue gas duct can be supplied.
If an existing flange mount exists, the probe can mount to this. Many mounting adaptors are available for use with
other existing flanges that may be larger.
Installation may be either horizontal or vertical.
6888A Probe Installation
1. Ensure all components are available to install the 6888A O2 probe. Refer to Figure 1.
2. If using the optional ceramic diffusion element, the vee deflector must be correctly oriented. Before inserting the
6888A probe, check the direction of gas flow in the duct. Orient the vee deflector so the apex points upstream
toward the flow. See Figure 2.
3. If using the standard square weld plate or an optional flange mounting plate (Figure 3) weld or bolt the plate onto the
duct. The through hole diameter in the stack or duct wall and refractory material must be at least 2-1/2 in. (63.5 mm).
4. Insert probe through the opening in the mounting flange and bolt the unit to the flange.
Figure 2. Orienting the Optional Vee Deflector
CAUTION
If the ducts will be washed down during outage MAKE SURE to power down the probes and remove them from the wash area.
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Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Figure 3. 6888A Probe Installation
127($//',0(16,216$5(,1,1&+(6
:,7+0,/,0(7(56,13$5(17+(6(6
Table 2. Removal/ Installation*
Table 1. Mounting Flange
ANSI
Probe Length
DIM “A” Insertion
Depth
DIM “B” Removal
Envelope
18 IN. (457 mm)
Probe
16.10 (409)
15.77 (401)
3 FT. (0.91 m) Probe
32.52 (826)
46.6 (1182)
6 FT. (1.83 m) Probe
68.52 (1740)
82.6 (2097)
9 FT. (2.74 m) Probe
104.52 (2655)
118.6 (3011)
12 FT. (3.66 m)
Probe
140.52 (3569)
154.6 (3926)
DIN
Flange Dia
7.28
(185)
Hold Dia
.75
(20)
(4) Holes Eq Sp 4.75
on BC
(121)
5.71
(145)
* Add 3.80 (96) to DIM “A” and DIM “B” for probe with ceramic
or Hastelloy diffuser.
A
Note: Dimensions are
in inches with
millimeters in
parentheses.
45o
Table 3. Installation Weld Plate Outline
C
2.500 Dia
(63,5)
A
B
Adapter plate
for Oxymitter 4000
Installation. See
Figure 2-1.
38890071
8
Adapte
and 12
Installatio
4 studs,
lockwashers and
nuts equally
spaced on
C Dia B.C.
ANSI
DIN
“A”
6.00
(153)
7.5
(191)
“B”
Thread
.625
(11)
(M-16x2)
“C”
Dia
4.75
(121)
5.708
(145)
spa
D
on
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Figure 4. Installation with Drip Loop and Insulation Removal
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Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
6888Xi Advanced Electronics Installation
The Xi Advanced Electronics is available in a panel mounting, wall mounting, or pipe mounting configuration. Refer to
Figure 5 or Figure 6 for the panel, wall, or pipe mounting details.
1.
Ensure all components are available to install the 6888Xi.
2.
Select a mounting location near or removed from the O2 Probe. Consider the temperature limitations of the
6888Xi (see "Specifications") when selecting the mounting location.
3.
Mount the 6888Xi at a height convenient for viewing and operating the interface. Approximately 5 ft (1,5 m) is
recommended.
4.
The keypad window on the 6888Xi may have interior and exterior protective membranes. Remove the protective
membranes prior to use of the 6888Xi enclosure. Failure to remove the protective membranes may cause the
display to appear distorted. The membrane may be difficult or impossible to remove after extended use at
elevated temperatures.
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Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Figure 5. Wall/Surface and Pipe Mount
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Quick Start Manual
IM-106-6888QS
Figure 6. Panel Mount
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Model 6888
March 2012
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Electrical installation
All wiring must conform to local and national codes. Multiple wiring diagrams are shown in this section. Always refer to
the diagrams that apply to your transmitter configuration and disregard all other wiring diagrams.
WARNING
Disconnect and lock out power before connecting the power supply.
WARNING
Install all protective covers and safety ground leads after installation. Failure to install covers and ground leads could result
in serious injury or death.
WARNING
To meet the Safety Requirements of IEC 1010 (EC requirement), and ensure safe operation of this equipment, connection to
the main electrical power supply must be made through a circuit breaker (min 10A) which will disconnect all currentcarrying conductors during a fault situation. This circuit breaker should also include a mechanically operated isolating
switch. If not, then another external means of disconnecting the supply from the equipment should be located close by.
Circuit breakers or switches must comply with a recognized standard such as IEC 947.
Note:
To maintain proper earth grounding ensure a positive connection exists between the transmitter housing and earth. The connecting
ground wire must be 14 AWG minimum..
Note:
Line voltage, signal, and relay wiring must be rated for at least 105°C (221°F).
Note:
If metal conduit is used with the 6888Xi the conduit should be reliably bonded to protective earth. The grounding plate inside the
6888Xi is not bonded to PE and does not provide adequate grounding.
6888A Transmitter
1. Remove the cover from transmitter.
2. Refer to Figures 8 and 9. Connect the line (L1 wire) to the L1 terminal, the neutral (L2 wire) to the L2/N terminal, and the
ground wire to the ground lug. The 6888A accepts 120/240 VAC ±10% line voltage and 50/60 Hz. No setup is required.
3. Connect the 4-20 mA signal wires at the transmitter. Use a shielded twisted wire pair. Do not allow bare shield wires
to contact the circuit boards. Insulate the shield wires prior to termination.
4. Terminate the shield only at the transmitter electronics housing unless using a 6888Xi. When using the 6888Xi
Enhanced Interface, terminate the shield at both ends.
NOTE
The 4-20 mA signal represents the O2 value and also powers the probe-mounted electronics. Superimposed on the 4-20 mA signal
is HART information accessible through a Field Communicator or AMS software.
5. Reinstall cover on transmitter.
6. Follow the remaining electrical installation instructions only if the 6888Xi is included with your system configuration.
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Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
6888A Direct Replacement (DR) Probe
A direct replacement probe is available for connection to an existing electronics package. Use the following procedure
to connect a DR probe to the transmitter electronics.
1. Remove cover from probe.
2. Feed all DR probe wiring through the conduit port of probe.
3. Refer to figure 10. Connect DR probe heater power leads to DR probe connector.
4. Connect O2 signal and thermocouple wires to DR probe connector.
6888 Xi Advanced Electronics
1.Remove cover screws from the front cover of the 6888Xi. Swing down the front cover of the interface box.
2.Pull out the I/O board on the right-hand side of the card rack inside the 6888Xi. If your system is configured to operate
two transmitter probes there are two I/O interface boards.
3.See Figures 8,9, and 10. Connect the 4-20 mA signal wires at J4 of the I/O board. Attach the supplied ferrite clamp
over the 4-20 mA OUT wires that extend past the shield.
NOTE
Installation of the ferrite clamp over the 4-20 mA OUT wires is required for compliance with the European EMC Directive.
4.Terminate the shield of the 4-20 mA signal wires at the designated ground terminal of the 6888Xi. Do not allow bare
shield wires to contact the circuit boards. Insulate the shield wires prior to termination.
5.Connect the signal wires from the SPS or IMPS (if used) to the applicable terminals of J3. Refer to the SPS or IMPS
instruction manual for wiring details.
6.Connect the customer’s alarm indicator devices to the alarm indicator relay terminals.
7.Reinstall the I/O board in the card rack of the 6888Xi.
8.If your system is configured for two channel operation, repeat steps 2 through 7 to connect the other signal wires.
9.Remove the connector from the power supply board located on the left-hand side of the card rack inside the 6888Xi.
10. Connect the line, or L1 wire to the L1 terminal and the neutral, or L2 wire, to the N terminal.
11. Reinstall the power supply connector in the power supply board.
Flame Safety Interlock
A flame safety interlock by Emerson Process Management is available for heater power disconnect whenever there is a
loss of the process flame or a heater runaway condition (heater over-temperature) in the O2 Probe. This input is internally
powered by the Xi and is actuated via a dry contact output from the user’s flame scanner. A closed contact indicates a
flame is present. An open contact indicates a loss of flame.
1.Connect the signal wires from the burner management system flame status output to the flame status input terminals
of J2. The flame status sensing device is supplied by the customer. Refer to the applicable OEM documents for signal
wiring details.
2. Remove the J1 and J2 connectors from the AC relay board.
3. Connect the AC line input to the J1 connector.
4. Connect the AC power to the 6888A probe to the J2 connector.
5. Reinstall connector J1 and J2 to the AC relay board.
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Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Traditional Architecture Cable Connections
A traditional architecture configuration is used to provide for remote location of the transmitter electronics. All
electronics are housed inside the Xi. A multi-conductor power/signal cable connects between the probe and the Xi.
Use the following procedure to connect the traditional architecture probe to the Xi.
NOTE
The Traditional Architecture cable is provided at the specified length and is ready for installation. The cable glands must be properly
terminated to maintain EMC/EMI noise protection.
Figure 7. Traditional Architecture Cable Gland Assembly
1. Run the 7-conductor cable between the traditional architecture probe and the installation site for 6888Xi.
Use new cable conduit or trough as needed.
2. Install the cable and lead wires to the probe per manufacturer’s instructions.
3. Install the cable at the probe housing and at the 6888Xi enclosure according to the following procedure:
a. Unscrew locking nut from gland assembly, Figure 7, and slide locking nut back along cable.
b. Pull the gland body away from the plastic insert. Use care not to damage the cable shield braid.
c.Insert the cable wires into the proper entry port in either the probe housing or the 6888Xi enclosure.
d. At the probe housing, apply Teflon tape or similar sealing compound to the tapered pipe threads. Thread the gland
body into the probe housing until properly seated.
e. At the 6888Xi enclosure, insert the gland body into the left front cable port from the inside of the enclosure.
Use the rubber O-ring provided to seal the cable port.
f. Ensure the cable shield braid is evenly formed over the gray insert. When properly formed, the braid should be
evenly spaced around the circumference of the insert and not extend beyond the narrow diameter portion.
g. Carefully press the gray insert into the gland body. The grooves on the insert should align with similar grooves
inside the gland body. Press the insert in until it bottoms out in the gland body.
h. Slide the locking nut up and thread it onto the gland body. Tighten the locking nut so the rubber grommet inside
the plastic insert compresses against the cable wall to provide an environmental seal.
4. At the 6888Xi, connect the cable leads to the connectors on the transmitter I/O board as indicated in Figure 10.
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IM-106-6888QS
Figure 8. Single/Dual Channel Wiring Diagram
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Model 6888
March 2012
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IM-106-6888QS
Model 6888
March 2012
Figure 8 cont. Single/Dual Channel Wiring Diagram
120/240 VAC
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IM-106-6888QS
Figure 9. Single Channel with Flame Safety Wiring Diagram
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Model 6888
March 2012
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Figure 9 cont. Single Channel with Flame Safety Wiring Diagram
120/240 VAC
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IM-106-6888QS
Figure 10. Traditional Architecture Wiring Diagram
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Model 6888
March 2012
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Figure 10 cont. Traditional Architecture Wiring Diagram
120/240/ VAC
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Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Pneumatic Installation
Reference Air Package
After the 6888 is installed, connect the reference air set to the 6888 unit. Refer to the schematic diagram and the
mounting dimensions in Figure 11 for a locally assembled reference air supply.
Instrument Air (Reference Air): 5 psi (34 kPa) minimum, 8 psi (54 kPa) maximum at 2.0 scfh (1.0 /min) maximum; less
than 40 parts per million total hydrocarbons. Regulator outlet pressure should be set at 5 psi (34 kPa). Reference air
can be supplied by the reference air set or the optional SPS 4001B or IMPS 4000.
Figure 11. Plant Air Schematic Diagram
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Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Power Up Procedure
The 6888 O2 System is provided with certain preconfigured parameters as follows. Refer to full instruction manual for
procedures for changing these parameters.
•O2 Range 0-10%
•Calibration
o Manual calibration
o Hi gas 8.0%
o Lo gas 0.4%
o Test gas flow time 300 seconds
o Purge time 300 seconds
•Alarms (6888XI only)
o Alarm 1 – Cal Recommended / Unit Alarm
o Alarm 2 – No Alarm (except for Single Channel with Flame Safety Interlock configuration)
•4-20 mA/HART Loop Power
o Alarm Level – 3.5 mA
o Standalone 6888 Transmitter – Requires external power
o 6888Xi to 6888 Transmitter – Internal Power from 6888Xi
o 6888XI to DCS – Internal Power from 6888Xi
6888 Transmitter Without 6888XI
1. Apply AC line power to the Transmitter.
2.Apply 24 VDC loop power to the Transmitter.
3.Using either the DCS control or a Field Transmitter, verify communications to the Transmitter.
4.The transmitter probe will take approximately 45 minutes to warm up to the 736°C heater setpoint. The 4-20 mA signal
will remain at a default value of 3.5 mA and the O2 reading will remain at 0% through this warm-up period. After warm
up, the probe will begin reading oxygen and the 4-20 mA output will be based on the default range of 0-10% O2.
5.If there is an error condition at startup, an alarm message will be displayed. Refer to full instruction manual for
troubleshooting alarms.
6888 Transmitter With Single/Dual Channel or Single Channel & Flame
Safety Interlock 6888XI
1.Apply AC line power to the Transmitter.
2.Apply AC line power to the 6888XI.
3.Verify communications between the Transmitter and the 6888XI. The 6888XI display is preconfigured to display O2 &
cell temperature for single channel configurations and both O2 readings for dual channel configurations.
4.The transmitter probes will take approximately 45 minutes to warm up to the 736°C heater setpoint. The 4-20 mA
signal will remain at a default value of 3.5 mA and the O2 reading will remain at 0% through this warm-up period.
After warm up, the probe will begin reading oxygen and the 4-20 mA output will be based on the default range
of 0-10% O2.
5.If there is an error condition at startup, an alarm message will be displayed on the 6888Xi. Refer to full instruction
manual for troubleshooting alarms.
23
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
6888 Transmitter With Traditional Architecture 6888XI
1. Apply AC line power to the 6888XI.
2. Verify communications between the Transmitter and the 6888XI. The 6888XI display is preconfigured to display O2 &
cell temperature.
3. The transmitter probe will take approximately 45 minutes to warm up to the 736°C heater setpoint. The 4-20 mA signal
will remain at a default value of 3.5 mA and the O2 reading will remain at 0% through this warm-up period. After warm
up, the probe will begin reading oxygen and the 4-20 mA output will be based on the default range of 0-10% O2.
4. If there is an error condition at startup, an alarm message will be displayed on the 6888Xi. Refer to full instruction
manual for troubleshooting alarms.
Calibration
The 6888 O2 analyzer system can be calibrated in the installed condition without removing the instrument, and also
while the combustion process is on-line. A stainless steel tube runs the length of the probe, and delivers the calibration
gasses into the cell area. Factory calibration will usually be satisfactory for initial start-up and operation, but most accurate measurement is gained by executing a calibration after the combustion process is up and operating.
Recommended calibration gases are .4 % O2 and 8 % O2, with the balance of nitrogen in the gas bottles, but other values
can be used as long as the electronics are configured identically. Instrument air or pure nitrogen are not recommended as
calibration gas values.
A two-stage pressure regulator should be used to establish a pressure of 20 PSI, from the bottles, and the flowmeter
should be set to 5 SCFM flow rate. Calibration is semi-automatic, with the electronics prompting the technician to
introduce the two calibration gases in sequence. All adjustments to the electronics are made automatically. Refer to
the menu maps under the “detailed setup” / “cal setup”, and make sure that the gas values in the cal bottles are set
properly in the electronics. A 300 second flow time is the default set for each gas, as well a purge time to permit the
flue gases to displace the cal gases completely. Once the set-up is complete, go to the “calibration”/”start cal” menu,
and follow the prompts to execute the calibration. The calibration will be noted as successful or failed. If successful,
note the calibration slope, constant, and impedance on the calibration log. If the process flue gases have high levels of
particulate in it, also note the Tinitial and Tfinal return to process time in this log. If the cal was unsuccessful, try again,
making sure that the gas flows are correct, and the procedure followed correctly.
Make sure that the calibration port at the probe is capped tightly after calibration, or elevated O2 readings can result
from fresh air being drawn into the cal gas line traveling down to the cell.
Troubleshooting, Maintenance, and Spare Parts information is included in the full manual on CD supplied with
each shipment.
24
Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
Menu Trees - The following menu trees will assist in navigating the electronics for configuration and troubleshooting.
6888Xi Menu- This is the most typical arrangement, and provides direction for the main display on the 6888Xi. This
interface addresses the electronic inside the 6888Xi, and also for the electronic in the probe head. This menu is also
applicable for “traditional architecture” systems, where there is no electronics in the probe head.
1.1
6888Xi Menu Tree
Note:
The “Menu” button toggles between the “system”, “probe #1”, and “probe #2” (if a second probe is in place). Keep pushing the
menu button to get to the menu you desire.
1.1.1 System Menu Tree
System: TAG
System Menu
1 Diagnostics
1 Active Alarms
2 Status
1 System
COM 1 Disconnect
COM 2 Disconnect
NV Memory Fail
FAC Memory Fail
IOB 1 Type Mismatch
IOB 2 Type Mismatch
IOB 1 Bad Checksum
IOB 2 Bad Checksum
3 Acknowledge Alarms
1 Ack IOB1 Bad Cksum
2 Ack IOB2 Bad Cksum (Note 1)
4 Maintenance
1 Revisions
1 Version
2 Build Num
2 Reset
1 Restart Count
2 Reset Restart Count
3 Reset System Params
4 Reset Xi
1 Reset Xi
2 Reset UI Board
2 Configure UIB
1 Tag*
2 Num I/O Board*
3 Menu
1 I/O Board 1
1 Probe Count
2 Dev Type 1
2 I/O Board 2 (Note 1)
1 Probe Count
2 Dev Type 1
4 Main Display
1 One-Probe /Two-Probe Format (Note 2)
1 LINE 1
1 Center*
2 LINE 2
1 Center*
3 LINE 3
1 Left*
2 Right*
4 LINE 4
1 Left*
2 Right*
2 Revert Time*
3 Language*
4 Contrast*
5 Reset Contrast
6 Flash Alarm*
5 Security
1 Password*
2 Enable Password*
3 Configure IOB
1 I/O Board 1
1 Revisions
1 Version
2 Checksum
2IOB SN
3 Features*
Stoichiometer
Prog Reference
Extended Temp
Diffuser Warning
4 Factory Mode
5 Reset Xi
6 Reset I/O Board
2 I/O Board 2 (Note 1)
1 Revisions
1 Version
2 Checksum
2IOB SN
25
Quick Start Manual
Model 6888
IM-106-6888QS
3 Features*
Stoichiometer
Prog Reference
Extended Temp
Diffuser Warning
4 Factory Mode
5 Reset Xi
6 Reset I/O Board
* = R/W parameters
Note 1:
Visible if the device is configured for 2 I/O Boards.
Note 2:
Label differently based on one or two I/O Board.
Note 3:
Visible if the Password is enabled.
1.1.2 6888-O2 Probe Menu Tree
IOB 1 Probe1: TAG
6888-O2 Probe Menu
1 Process Variables
1 Process Variables
1 O2
2 O2 Temp
3 Cell Imp
4 O2 Cell
2 Temperatures
1 O2 Temp
2 CJC Temp
3 Board Temp
4 OP Mode
3 Raw Values
1 O2 Cell
2 Cell Imp
3 T/C Volt
4 Heater
5 Update Cell Imp
4 Analog Output
1 O2 AO
2 O2 AO%
3 O2 LRV
4 O2 URV
5 Maximums
1 Temperature
1 O2 Temp Max
2 O2 Temp Max Time
3 CJC Temp Max
4 CJC Temp Max Time
5 Board Temp Max
6 Board Temp Max Time
26
March 2012
2 Voltage
1 Heater Max
2 Heater Max Time
3 Cell Max
4 Cell Max Time
3 Ramp Rate
1 Heater Max
2 Heater Max Time
6 Heater
1 Duty Cycle
2 O2 Temp SP
3 O2 Temp
4 Heater Ramp Rate
2 Diagnostics
1 Active Alarms
2 Status
1 Current
1 Device
PV Out of Limit
NPV Out of Limit
AO Saturated
AO Fixed
More Status
Cold Start
Cfg Changed
Dev Failure
2 Failed
NV Memory Fail
Board Temp High
Factory Mode
Heater Ramp Rate
3 Maintenance 1
O2 Sensor Open
O2 T/C Open
O2 Temp Low
O2 Temp High
O2 T/C Shorted
O2 T/C Reversed
Heater Failure
Burner Flameout
4 Maintenance 2
Xmtr Disconnect
Cal Recommend
Cal Failed
Cell Imp High
Probe Mismatch
5 Advisory
Cal Changed
Heater Volt Low
Probe Changed
Low O2
Diffuser Warning
Quick Start Manual
Model 6888
IM-106-6888QS
2 Previous
1 Previous Alarms
2 Ack Alarm Time
3 Acknowledge Alarms
1 Ack Calibration
2 Ack Cal Failed
3 Ack Probe Changed
1 Get from Probe
2 Send to Probe
4 Ack Diff Warn
4 Maintenance
1 Revision
1 HART
1 Device Rev
1 Transmitter
1 Version
2 I/O Board
1 Version
2 Analog Output
1 Trim mA Output
3 Operating Status
Factory Mode
Flame Status
AutoCal Device
Relay 1 Device
Relay 2 Device
AO Device
4 I/O States
1 I/O States 1
Gas 1 Solenoid
Gas 2 Solenoid
2 I/O States 2
Flame Status In
Factory Mode
Relay 1 Out
Relay 2 Out
SPS/IMPS In
SPS/IMPS Out
5 EE Status
1 Xmtr EE Value
2 IOB EE Value
6 Reset
1 Xmtr Restart
2 IOB Restart
3 Reset Restart Count
4 Reset Device
3 Basic Setup
1 Identification
1 Tag*
2 Serial Number*
3 Device ID
2 Communication
1 Poll Address
March 2012
2 Xmtr Address
3 Variable Mapping
1 PV
2 SV
3 TV
4 4V
4 Detailed Setup
1 Sensor
1 T90 Filter*
2 Low O2 Alm SP*
3 O2 Cell Ref (Note 2)*
4 High Temp Alm SP (Note 3)*
5 Heater SP (Note 3)*
6 Heater Latch Off (Note 3)*
7 Features
Stoichiometer
Prog Reference
Extended Temp
Diffuser Warning
2 Analog Output
1 O2 LRV*
2 O2 URV*
3 AO Range*
4 Alarm Level*
3 Relay
1 Relay 1*
Unit Alarm
Low O2
Cal Recommended
In Calibration
2 Relay 2*
Unit Alarm
Low O2
Cal Recommended
In Calibration
Heater Relay
4 Calibration
1 AO Track*
2 Tol Check*
3 Cal Recommend*
4 Cal Acknowledge*
5 Cal Gas 1*
6 Cal Gas 2*
7 Gas Time*
8 Purge Time*
9 Diffuser (Note 4)
1 Plugged Diffuser*
2 Auto Advance Cal*
5 Auto Calibration
1 Enable Auto Cal*
2 Start On Cal Rec*
3 Cal Interval*
4 Next Cal Time
27
Quick Start Manual
Model 6888
IM-106-6888QS
6 Resource
1 Analog Output
2 Auto Cal
3 Relay 1
4 Relay 2
5 Calibration
1 O2 Calibration
2 Abort Calibration
3 Cal State
4 Cal Constants
1 Current Cal
1 Slope
2 Constant
3 Impedence
4 Time
5 Reset Cal
6 Change Cal
2 Cal Logs
3 Failed Cal
1 Bad Slope
2 Bad Constant
5 Cal Result
1 Cal Result
2 Delta Imp
March 2012
6 Diffuser (Note 4)
1 Diff Diagnostics
1 Process
2 O2
3 Step
4 Step Time
5 Diag State
6 Init Resp
7 Process Resp
8 Rtn Process
9 O2 Rate Change
2 Diff T90
3 Purge Time %
4 Diff Warn
7 Pressures (Note 1)
1 Bottle Pressure 1
2 Bottle Pressure 2
3 Cell Pressure 1
4 Cell Pressure 2
* = R/W parameters
Note 1:
Visible if the device is configured for HSPS Autocal.
Note 2:
Visible if the Programmable Reference software feature is enabled.
Note 3:
Visible if the Extended Temperature software feature is enabled.
Note 4:
Visible if the Diffuser Warning software feature is enabled.
28
Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
HART Communications with the 6888Xi- Menu tree for communicating to the 6888Xi via HART communications
with a 475 handheld communicator. (this includes interface with the 6888A probe electronics through the 6888Xi).
1.2 475 Menu Tree for 6888Xi
1 OVERVIEW
1 Device Status:
1 Refresh Alerts
2 No Active Alerts
{No Alarm}
2 F:Alert
{Failed Alarms}
2 M:Alert
{Maintenance Alarms}
2 A:Alert
{Advisory Alarms}
2 O2
3 O2 Analog Output
4 O2 URV
5 O2 LRV
6 VARIABLES
1 Operating Mode
2 PROCESS VARIABLES
1 Oxygen Concentration
2 O2 Temperature
3 Cell Impedance
4 O2 Cell
3 NON PRIMARY VALUES
1 O2 Temperature
2 CJC Temperature
3 Board Temperature
4 RAW VALUES
1 O2 Cell
2 Cell Impedance
3 T/C Volt
4 Heater Volt
5 Update Cell Imp
7 DEVICE INFORMATION
1 IDENTIFICATION
1 Tag
2 Model
3 Serial Number
4 Date
5 Descriptor
6 Message
7 Device ID
2 REVISIONS
1 HART REVISION
1 Universal
2 Field Device
3 Hardware
4 Software
5 DD
2 SOFTWARE VERSION
1 Transmitter
2 Input/Output Board
2 CONFIGURE
1 GUIDED SETUP
1 Configure Sensor
2 Configure Analog Output
3 Configure Relay
4 Configure Calibration
5 Configure Auto Calibration
2 MANUAL SETUP
1 IDENTIFICATION
1 Tag*
2 Serial Number*
3 Final Assembly Num*
4 Date*
5 Descriptor*
6 Message*
2 COMMUNICATION
1 Poll Address*
2 Num Req Preambles
3 Physical Signal Code
3 SENSOR
1 T90 Filter*
2 Low O2 Alarm SP*
3 O2 Cell Reference* (Note 2)
4 High Temp Alarm SP* (Note 3)
5 Heater Set Point* (Note 3)
6 Heater Latch Off* (Note 3)
7 Features*
8 Slope*
9 Constant*
4 ANALOG OUTPUT
1 O2 LRV*
2 O2 URV*
3 Output Range*
4 Alarm Level*
5 Relay
1 Relay 1*
1 Unit Alarm
2 Low O2
3 Cal Recommended
4 In Calibration
2 Relay 2*
1 Unit Alarm
2 Low O2
3 Cal Recommended
4 In Calibration
5 Heater Relay
29
Quick Start Manual
IM-106-6888QS
6 CALIBRATION
1 Analog Output Track*
2 Tolerance Check*
3 Cal Recommended*
4 Cal Acknowledge*
5 Gas 1*
6 Gas 2*
7 Gas Time*
8 Purge Time*
9 Diffuser
1 Plugged Diffuser*
2 Auto Advance Cal*
7 AUTO CALIBRATION
1 Enable Auto Cal*
2 Start On Cal Rec*
3 Calibration Interval*
4 Next Cal Time*
8 RESOURCE
1 Analog Output
2 Auto Calibration
3 Relay 1
4 Relay 2
9 SCAN DEVICE
3 CALIBRATION
1 CALIBRATION
1 O2 Calibration
2 Start/Stop Calibration
3 Abort Calibration
4 State
1 Calibration Setup
2 Time Remain
3 O2
4 O2 Cell
5 Result
1 Calibration Result
2 Delta Impedance
6 Diffuser (Note 4)
1 Diffuser T90
2 Purge Time %
3 Diffuser Warn
2 CALIBRATION CONSTANTS
1 CURRENT CALIBRATION
1 Slope
2 Constant
3 Impedance
4 Time
2 Calibration Logs
3 Failed Calibration
1 Bad Slope
2 Bad Constant
4 Reset Calibration Constants
30
Model 6888
March 2012
3 SERVICE TOOLS
1 ALERTS
1 ACTIVE ALERTS
1 Refresh Alerts
2 No Active Alerts {No Alarm}
2 F:Alert
{Failed Alarms}
2 M:Alert
{Maintenance Alarms}
{Advisory Alarms}
2 A:Alert
2 DEVICE STATUS
1 CURRENT
1 DEVICE
2 FAILED
NV Memory Failed
Board Temp High
Factory Mode
Heater Ramp Rate
3 MAINTENANCE 1
O2 Sensor Open
O2 T/C Open
O2 Temperature Low
O2 Temperature High
O2 T/C Shorted
O2 T/C Reversed
Heater Failure
Burner Flameout
4 MAINTENANCE 2
Transmitter Disconnect
Calibration Recommended
Calibration Failed
Cell Impedance High
Probe Mismatch
Xi Disconnected
5 ADVISORY
Calibration Changed
Heater Voltage Low
Probe Changed
Low O2
Diffuser Warning
2 PREVIOUS
1 Process Alarm
2 Ack Alarm Time
3 ACKNOWLEDGE
1 Ack Calibration
2 Ack Calibration Failed
3 Ack Diffuser Warning
4 Ack Probe Changed
2 VARIABLES
1 PROCESS VARIABLES
1 PV
2 SV
3 TV
4 4V
5 Primary Variable
Quick Start Manual
Model 6888
IM-106-6888QS
6 Secondary Variable
7 Tertiary Variable
8 Fourth Variable
2 NON PRIMARY VALUES
1 O2 Temperature
2 CJC Temperature
3 BoardTemperature
3 RAW VALUES
1 O2 Cell
2 Cell Impedance
3 T/C Volt
4 Heater Volt
5 Update Cell Imp
4 ANALOG OUTPUT
1 O2
2 O2 Analog Output
3 O2 Analog Output %
5 MAXIMUMS
1 TEMPERATURE
1 O2 Maximum
2 O2 Maximum Time
3 CJC Maximum
4 CJC Maximum Time
5 Board Maximum
6 Board Max Time
2 VOLTAGE
1 Heater Maximum
2 Heater Max Time
3 Cell Maximum
4 Cell Maximum Time
3 RAMP RATE
1 Heater Maximum
2 Heater Max Time
6 HEATER
1 Duty Cycle
2 O2 Temperature SP
3 O2 Temperature
4 Heater Ramp Rate
3 TRENDS
1 Oxygen Concentration
2 O2 Temperature
3 Analog Output
4 MAINTENANCE
1 CALIBRATION
1 O2 Calibration
2 Start/Stop Calibration
3 Abort Calibration
4 State
1 Calibration Step
2 Time Remain
3 O2
4 O2 Cell
March 2012
5 RESULT
1 Calibration Result
2 Delta Impedance
6 DIFFUSER (Note 4)
1 Diffuser T90
2 Purge Time %
3 Diffuser Warn
2 ANALOG OUTPUT
1 Trim mA Output
2 Loop Test
3 OPERATING STATUS
1 Factory Mode
2 Flame Status
3 Auto Cal Device
4 Relay 1 Device
5 Relay 2 Device
6 Analog Output device
4 INPUT/OUTPUT STATES
1 I/O States 1
1 Gas 1 Solenoid
2 Gas 2 Solenoid
1 I/O States
1 Flame Status In
2 Factory Mode
3 Relay 1 Out
4 Relay 2 Out
5 SPS/IMPS In
6 SPS/IMPS Out
5 EE STATUS
1 Transmitter EE Value
2 I/O Board EE Value
6 RESET/RESTORE
1 Transmitter Restart
2 I/O Board Restart
3 Reset Restart Count
4 Reset Device
* = R/W parameters
** = Alarm supported by 6888Xi only and will always be off
Note 1:
Visible if the device is configured for HSPS Autocal.
Note 2:
Visible if the Programmable Reference software feature
is enabled.
Note 3:
Visible if the Extended Temperature software feature is
enabled.
Note 4:
Visible if the Diffuser Warning software feature is
enabled.
31
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Transmitter Electronics- If not using the 6888Xi electronics, one can access the electronics inside the probe via HART
communications with a 475 handheld communicator.
1.3 475 Menu Tree for 6888-O2 Transmitter
1 OVERVIEW
1 Device Status
{Good/Fail/Maint/Advise}
1 Refresh Alerts
2 No Active Alerts
{No Alarm}
2 F:Alert
{Failed Alarms}
2 M:Alert
{Maintenance Alarms}
2 A:Alert
{Advisory Alarms}
2 O2
3 O2 Analog Output
4 O2 URV
5 O2 LRV
6 VARIABLES
1 Operating Mode
2 PROCESS VARIABLES
1 Oxygen Concentration
2 O2 Temperature
3 Cell Impedance
4 O2 Cell
3 NON PRIMARY VALUES
1 O2 Temperature
2 CJC Temperature
4 RAW VALUES
1 O2 Cell
2 Cell Impedance
3 Heater Volt
4 Update Cell Imp
7 DEVICE INFORMATION
1 IDENTIFICATION
1 Tag
2 Model
3 Serial Number
4 Date
5 Descriptor
6 Message
7 Device ID
2 REVISIONS
1 HART REVISION
1 Universal
2 Field Device
3 Hardware
4 Software
5 DD
2 SOFTWARE VERSION
1 Transmitter
2 CONFIGURE
1 GUIDED SETUP
1 Configure Analog Output
2 Configure Calibration
32
2 MANUAL SETUP
1 IDENTIFICATION
1 Tag*
2 Serial Number*
3 Final Assembly Num*
4 Date*
5 Descriptor*
6 Message*
2 COMMUNICATION
1 Poll Address*
2 Num Req Preambles
3 Physical Signal Code
3 SENSOR
1 Slope*
2 Constant*
4 ANALOG OUTPUT
1 O2 LRV*
2 O2 URV*
3 Output Range
4 Alarm Level*
5 Xi Mode*
5 CALIBRATION
1 Analog Output Track*
2 Gas 1*
3 Gas 2*
4 Gas Time*
5 Purge Time*
6 Scan Device
3 CALIBRATION
1 CALIBRATION
1 O2 Calibration
2 RESULT
1 Calibration Result
2 CALIBRATION CONSTANTS
1 CURRENT CALIBRATION
1 Slope
2 Constant
3 Impedance
4 Time
2 Calibration Logs
3 Reset Calibration Constants
3 SERVICE TOOLS
1 ALERTS
1 ACTIVE ALERTS
1 Refresh Alerts
2 No Active Alerts {No Alarm}
2 F:Alert
{Failed Alarms}
2 M:Alert
{Maintenance Alarms}
2 A:Alert
{Advisory Alarms}
Quick Start Manual
Model 6888
IM-106-6888QS
2 DEVICE STATUS
1 CURRENT
1 DEVICE
2 FAILED
NV Memory Failed
Board Temp High
Factory Mode
Heater Ramp Rate**
3 MAINTENANCE 1
O2 Sensor Open
O2 T/C Open
O2 Temperature Low
O2 Temperature High
O2 T/C Shorted
O2 T/C Reversed
Heater Failure**
Burner Flameout**
4 MAINTENANCE 2
Transmitter Disconnect**
Calibration Recommended**
Calibration Failed
Cell Impedance High**
Probe Mismatch**
Xi Disconnected
5 ADVISORY
Calibration Changed**
Heater Voltage Low
Probe Changed**
Low O2**
Diffuser Warning**
2 ACKNOWLEDGE
1 Ack Calibration Failed
2 VARIABLES
1 PROCESS VARIABLES
1 PV
2 SV
3 TV
4 4V
5 Primary Variable
6 Secondary Variable
7 Tertiary Variable
8 Fourth Variable
2 NON PRIMARY VALUES
1 O2 Temperature
2 CJC Temperature
3 RAW VALUES
1 O2 Cell
2 Cell Impedance
3 Heater Volt
4 Update Cell Imp
March 2012
4 ANALOG OUTPUT
1 O2
2 O2 Analog Output
5 MAXIMUMS
1 TEMPERATURE
1 O2 Maximum
2 O2 Maximum Time
3 CJC Maximum
4 CJC Maximum Time
2 VOLTAGE
1 Heater Maximum
2 Heater Max Time
3 Cell Maximum
4 Cell Maximum Time
6 HEATER
1 Duty Cycle
2 O2 Temperature SP
3 O2 Temperature
3 TRENDS
1 Oxygen Concentration
2 O2 Temperature
3 Analog Output
4 MAINTENANCE
1 CALIBRATION
1 O2 Calibration
2 RESULT
1 Calibration Result
2 ANALOG OUTPUT
1 Trim mA Output
2 Loop Test
3 OPERATING STATUS
Factory Mode
Flame Status
Auto Cal Device
Relay 1 Device
Relay 2 Device
Analog Output device
4 EE STATUS
1 Transmitter EE Value
5 RESET/RESTORE
1 Transmitter Restart
2 Reset Restart Count
3 Reset Device
* = R/W parameters
** = Alarm supported by 6888Xi only and will always be off
33
Quick Start Manual
IM-106-6888QS
Model 6888
March 2012
Return of Material
If factory repair of defective equipment is required, proceed as follows:
1. Secure a return authorization number from a Emerson Process Management Sales Office or representative before
returning the equipment. Equipment must be returned with complete identification in accordance with Emerson
Process Management instructions or it will not be accepted.
In no event will Emerson Process Management be responsible for equipment returned without proper authorization
and identification.
CAUTION
Observe proper ESD handling and packaging precautions when returning individual circuit boards.
2. Carefully pack defective unit in a sturdy box with sufficient shock absorbing material to ensure that no additional
damage will occur during shipping. When returning individual circuit boards, observe proper ESD precautions.
3. In a cover letter, describe completely:
a. The symptoms from which it was determined that the equipment is faulty.
b. The environment in which the equipment has been operating (housing, weather, vibration, dust, etc.).
c. Site from which equipment was removed.
d. Whether warranty or nonwarranty service is requested.
e. Complete shipping instructions for return of equipment.
f. Reference the return authorization number.
4. Enclose a cover letter and purchase order and ship the defective equipment according to instructions provided in
Emerson Process Management Return Authorization, prepaid, to:
Emerson Process Management
Rosemount Analytical
RMR Department
10241 West Little York
Suite 200
Houston TX 77040 USA
34
Quick Start Manual
Model 6888
IM-106-6888QS
March 2012
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35
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