VEGA II
Electronic flow computer
Blending version 1.0
DS/VE/0018/EN Ed. May 2013
VEGA II is a calculator-indicating device intended to be used
in measuring systems for liquids other than water (MID MI-005)
approved by the notified body LNE (France) with the
Evaluation Certificate n.12081 (see Welmec guide 8.8).
The “Blending” features herewith described have been
developed for loading applications, where the delivered
product is the result of the simultaneous and proportional
mixture of two products.
Metrology characteristics :
 Two meters management
 Three products loading
 Suitable for interruptible and not-interruptible measuring
systems
• Accuracy class: 0.3
• Mechanical class: M2
• Electromagnetic class: E2
 Certification of software with the follow extensions (see
Welmec guide 7.2):
• Extension S (Software separation):
the metrological and automation parts of firmware
are divided; a specific CRC16 characterizes the legally
relevant software.
• Extension L (Long term data storage):
the delivery data are stored in a data structure (250
deliveries) with MID criteria. The data can be
downloaded by serial lines or consulted on the display
by specific tool.
• Extension T (Legally relevant data transmission):
the delivery data can be transmitted by a serial line to
PC, to a Printing system or directly to a printer by
legally relevant protocols.
 Linkable with a legally relevant printer ST500-M (ISOIL)
 Linkable with alibi recording device MRD (Metrical
Recording Device)
 Entrance to parameters protected by password (three
levels) and Weight & Measure switch
 Log parameters function
 Continuous self-diagnosis
Ratio Blending (batch controlled)
Side-stream Blending (batch controlled)
Ratio Blending ("Wild" - batch not controlled)
Hardware properties:
 Explosion proof execution Ex-d approved ATEX
 Serial communication ports: n°2 EIA-RS485/RS232,
n° 1 EIA-RS485/RS422, n°1 EIA-RS232
 Modular electronic rack-type
 Leds back-light graphic display
 Numeric and multi-function push-buttons, solid state
 Internal back-up battery
 Internal heating device with thermostat
 Counting inputs configurable (encoders, push- pull and
OC signals, Namur, 4÷20 mA pulses)
 Up to 32 digital inputs totally programmable
 Up to 16 power outputs programmable
 Up to 16 digital outputs programmable
 Four pulses outputs programmable
 Two 4÷20 mA inputs to acquire product density
 Two 4÷20 mA active outputs for remote indication of
temperature or flow-rate
Side-stream Blending ("Wild" - batch not controlled)
ISOIL IMPIANTI S.p.A. - 24061 Albano S. Alessandro (BG) - Italy
Tel. : +39.02.91988.5
web: www.isoilmeter.com
DS/VE/0018/EN -05/13
fax: +39.02.66012457
e-mail: [email protected]
Pag. 1/1
Features
Functional characteristics:
 Management up to 3 different blending recipes,
individually configurable through dedicated parameters
(name of the mixture, selection of the product, blending
ratio, line washing enable), option liberally configurable
by serial line from terminal automation system (TAS).
 Displays both the data of the blended products and those
of the two components. You can scroll from one set to the
other by pressing the “enter” key, both during the loading
and in standby.
 Proportional or not proportional blending options
 Only high flow phase blending option
 ‘Drop down’ menu with extended descriptions
 The operator is guided step by step through menus
 Alarms and incorrect operations are clearly described
 Able to adapt to the many different levels of automation/
configuration at loading bays worldwide
 Management of preset valves (two stages, digital or
analog valves)
 Manages the adjustment of the final quantity
 Manages actions in cases of lack of interlock
 Management of identification by pin-code
 Direct control of up to two metered additives units
 Direct control of up to two additives pistons
 Control of additive system (ISOIL FlexiMix)via RS485 serial
communication interface
 Selection between the main units of measure (a “custom”
unit is available)
 Temperature compensation according to ASTM/API
Tables
 Acquisition of product temperature from temperature
element “Pt100” three or four wires
 Local (stand alone)or remote working (host controlled)
with Proprietary ASCII or MOD-BUS (RTU) protocols
 Direct management of print with configurable reports by
a single printer or shared printer for several VEGA II.
 Diagnostic applications (status verification D/I, A/I and
simulation of D/O, A/O)
 Six emergency functions (three programmable)
 Terminal display managing: the system (TAS)can visualize
messages, data entry fields on the screen of VEGA II
 Remote outputs managing: the system (TAS) can position
the relays or digital outputs not used by serial message
Measuring unit
VEGA II allows the display of fixed and processed quantity
calculations using the following units of measurement:
• volume can be expressed in litres, gallons (US,UK), cubic
metres, cubic centimetres.
• mass can be expressed in grams, kilograms, pounds and
tonnes.
Moreover, if the requirement is not included in the list
above, the user can configure a customized unit of
measurement of a maximum of 8 alphanumeric characters.
Flow rate can be represented as a unit of measurement:
• /min (units of measure per minute)
• /hour (units of measure per hour)
and the temperature in °C or °F.
Dual pulse security
This feature provides continuous monitoring and error
indicating alarm of pulses transmission according OIML R117
and ISO 6551 Level B, API Chapter 5.5 Level B.
Encoder CanBus
Vega II allows to be linked with the ISOIL EM6422 encoders
via protected CanBus protocol in order to improve the
immunity performance, safety from manumission and
diagnosis functions.
Temperature compensation (optional)
The temperature compensation provides with the ability to
compensate for variance in temperature from a base
temperature Tb (typically at 15°C and 20°C).
The product temperature is measured by a Pt100 probe
connected with VEGA II.
VEGA II calculates the net volume of:
using
the
following
products
• Petrochemical
configurable API tables: 6A, 6B, 6C, 24A, 24B, 54, 54A,
54B, 54D, 60A, 60B, 60D and BRAZIL table.
• Ethanol product using the following tables: OIML R22,
NBR5992.
• Biofuels via "PTB table" for thermal compensation of
mixtures of mineral and bio fuels.
The compensation can also be carried out using the alpha
cubic expansion coefficient.
Density acquisition by 4-20mA input
VEGA II can acquire density via a 4-20mA input. It’s possible
to select between two types of data represented in input:
density at Tb (base temperature) and density at Tamb
(ambient temperature). VEGA II, during the delivery, makes
the calculation of product’s average density.
Mass calculation
VEGA II can calculate the mass by multiply the in-line
environment density with volume at environment
temperature or by multiply the density at base temperature
with the volume at base temperature. Gravitational force
correction can be applied using a fixed factor that can be
parameterised, or table 56.
Meter calibration
VEGA II allows the following settings for each of up to three
products:
• k-factor (impulses/unit of measurement, meter
characteristic factor)
• meter factor (“average” setting factor)
• the correction curve (up to 10 pairs of flow
rate/correction values to correct error throughout flow
rate range).
ISOIL IMPIANTI S.p.A. - 24061 Albano S. Alessandro (BG) - Italy
Tel. : +39.02.91988.5
web: www.isoilmeter.com
DS/VE/0018/EN -05/13
fax: +39.02.66012457
e-mail: [email protected]
Pag. 2/2
Loading operations:
VEGA II, in local mode, manages the loading process
according to the configuration of the functions enabled,
carrying out the following operations:
• when more than one, mixture selection via keyboard or
external selector
• controlling interlocks, signals positioning.
• setting preset from keyboard.
• starting delivery from keyboard or external button.
• opening selector, block and vapour recovery valves,
starting pump and preset valves according to times
specified by appropriate parameters.
• enabling additive system
• blending ratio control: VEGA II keeps checking the flow
rates and the delivered quantities, to keep the blending
ratio and the flow rates ratio within the set tolerances,
adapting the total flow to the required high and low flow
preset delivery values for that loading arm. VEGA II tries to
correct a possible mistake, according to the system
response time, configurable on the device through a
dedicated parameter. The load is stopped thresholds are
exceeded (minimum or maximum flow rate, blending ratio
tolerance).
• end of batch control, in such a way to allow an accurate
control of the delivered quantity, as preset
• line wash handling: when enabled, one of the two valves
closure is performed in advance according to a set
quantity.
• closes the valves (section valves, blocking valves, and
vapour recovery valves), stops the pump according the
timing set parameters.
• at the end of the batch the system informs whether the
delivery has been made according to the set blending
ratio.
• summarising data and printing delivery reports.
In remote mode VEGA II operates as an intelligent terminal
controlled by a TAS (Terminal Automation System); once
initialised it continues working independently controlling the
loading process by means of the devices it is connected to.
The TAS controls functions such as:
• operator recognition by means of “pin-code” or badge
entered and enabling loading.
• starting
loading
selecting
methods
(automatic,
semiautomatic..), resetting quantity and updating density.
Selection between three recipes locally configured or
setting of percentages of free recipes.
• Selection between three recipes locally configured or
setting of percentages of free recipes.
• starting and stopping delivery.
• enabling and disabling meter.
• resetting alarm.
• acquiring data (status).
• summarising partial or total data.
• downloading delivery data.
Remote control can be achieved by means of serial
dialogue with proprietary protocol or Mod-Bus RTU protocol.
Valves
VEGA II can operate with the following types of valve:
• Two stages
Two stages valve deliver the preset quantity by
controlling two solenoid valves (one for LF and one for
HF). Flow rate values must be regulated beforehand,
mechanically adjusting valves. VEGA II manages the
initial low flow phase, the high flow phase and final low
flow phase, in such a way as to avoid “splash”
phenomena and foam from forming. The duration of
these phases can be configured with the appropriate
parameters. This valve allows you to use the automatic
final adjustment function: if necessary, to obtain the
exact quantity requested, preset is concluded with a
sequence of short valve openings until the desired value
is reached.
•
•
Digital valve (Multistep)
This valve allows regulating the flow rate during the
delivery besides to managing initial and final low flow
phases. Flow rate is adjusted to a fixed value by driving
two solenoid valves (one NO and one NC) in such a way
as to regulate the position of the valve membrane.
With this type of valve VEGA II can manage one default
high flow rate and two separate lower high-flow rates,
triggered by signals from two digital inputs. As alternatives
the high flow-rate can be set by serial line message.
Analog valve (4-20mA)
Vega II is able to drive any valve with suitable hydraulic
characteristics by the 4-20mA signal. The delivery phases
and flow rate values are managed as for the digital
valve.
Configuring digital inputs and outputs
The firmware is designed to allow maximum flexibility in
adapting to devices and field signals.
For example the various VEGA II at a loading terminal can be
configured for loading bays with different characteristics and
input/output signals.
All digital inputs (up to 32) can be programmed as loading
interlock or signal linked to a specific function.
If configured as interlock you can select:
• logic level (ok if closed, ok if open)
• action (functions to be enabled with possible configurable
D/O control)
• label (signal meaning, displayed in full) including:
(Interlock number, grounding, loading arm, manual valve,
vapour recovery valve, vapour recovery valve, overfilling,
tank-truck presence, interlocks from badge reader, dead
man, dirty filter, emergency, bay locked, remote
emergency, vapour recovery, tank level).
Other three labels can be configured: for each custom
interlock, 4 lines of 15 characters are available.
Whilst every input configured as a signal can be associated
with a fixed function; you can select type of signal, including:
(General signal, Remote start, remote stop, local/remote
selector, overfilling bypass, open vapour recovery micro
valve, closed vapour recovery micro valve, open block micro
valve, closed block micro valve, open selecting micro valve,
closed selecting micro valve, mixture 1/2/3 selector, Start/Stop
ON-OFF, additive system unit A/B/C/D/E/F not ready, additive
pump signal, flow reduction 1/2, Gas extractor level (STOP),
Gas extractor level (LF)).
Slave function indications can be associated with each
digital output (up to 32, of which 16 power and 16 transistor):
(not used, BF-NA-AC, AF-NC, product 1/2/3 pump, mixture
1/2/3 selector, Alarm, block valve, vapour recovery, vapour
recovery, impulse reset, additive system unit 1/2 enable,
cleaning line, additive selection 1/2/3/4 additive selection,
preset active, status leak alarm)
The size impulses represent (volume, compensated volume,
mass) and a multiplication factor can be configured for each
pulse output (up to 4).
ISOIL IMPIANTI S.p.A. - 24061 Albano S. Alessandro (BG) - Italy
Tel. : +39.02.91988.5
web: www.isoilmeter.com
DS/VE/0018/EN -05/13
fax: +39.02.66012457
e-mail: [email protected]
Pag. 3/3
Configuring analog 4÷20 mA inputs
The two 4÷20mA inputs can be configured to:
• receive the actual product’s density. It’s possible to select
between two types of data represented in input: density
at Tb (base temperature) and density at Tamb (ambient
temperature)
• receive the alpha cubic expansion coefficient
• receive alcoholic strength value
Others ISOIL serially linkable devices:
• LFD-06
Six digits Large Figure Display for remote data indication.
• RF-ID Badge reader
Entry level RF-ID 125Khz badge reader for operator
identification.
Configuring analog 4÷20 mA outputs
The two 4÷20mA outputs can be configured to:
• send the actual or average product’s temperature
• send the actual or average product’s flow-rate
• drive analog valves
Additive functions
VEGA II manages an in-line additive system as following:
• by connecting through a serial line RS485 with ISOIL
FlexiMix device.
Can be managed up to six FlexiMix, each of which can
inject up to six additives. Totally can be managed up to six
additives.
In this case, VEGA II is able to:
o establish if additives are required or not,
o select the additive and the percentage,
o receive the quantity injected by FlexiMix,
o receive an alarm, to take diagnostic checks to
decide if the delivery should be continued or not.
• by connecting to “intelligent” additive devices,
generally equipped with electronics that receive
impulses representing the quantity and control a
hydraulic circuit with a dosing valve, piston or pump, to
supply quantities according to desired percentages.
VEGA II allows you to control two separate devices with
a maximum of four additives each using the following
digital signals:
o n° 2 D/O to select the device
o n° 4 D/O to select the additive
o n° 2 D/I to acquire alarms
Printing reports.
VEGA II is able to produce reports that can be configured
with a set of specific parameters through different serial
protocols.
The ISOIL printing systems managed are:
• 80 columns serial printers:
o ST500A (RS232 max. distance 50 m)
o ST500B (RS422 max. distance 1000 m)
• Tickets serial printers:
o ST100B - Epson TM-U295 (RS232 max. distance 50 m)
o ST100C - Epson TM-U295 (RS422 max. distance 1000 m)
• SPD-02
This system allows up to a maximum of 32 VEGA II for
each of the two RS422/RS485 serial lines it is equipped
with. The SPD-02 collects the data from each VEGA II and
prints on 80 columns printer.
SPD-02 could be ordered in a cold back-up version.
• ST500-M (MID approved)
This system allows up to a maximum of 16 VEGA II to be
connected in multi-point by RS422 or RS485 serial line. The
ST500-M collects the data from each VEGA II and prints
on an 80 columns printer. Data frame is checked by
CRC16.
• MRD Metrical Recording Device (MID approved)
The MRD is a device designed to store the delivery data
collected by serial line from several VEGA II (up to 64).
MRD is suitable to replace a printer system with a mass
memory recording system.
ISOIL IMPIANTI S.p.A. - 24061 Albano S. Alessandro (BG) - Italy
Tel. : +39.02.91988.5
web: www.isoilmeter.com
DS/VE/0018/EN -05/13
fax: +39.02.66012457
e-mail: [email protected]
Pag. 4/4
TECHNICAL SPECIFICATIONS
Main power supply
Power supply for internal
heating device
Flow pulses input
Power supply for pulse emitter
Digital inputs
Digital outputs
Digital impulses outputs
Digital power outputs
Characteristics for mechanical
relay
AC Load: max 250 Vac
DC Load: max 125 Vdc
• min switching load: 100mA, 5V
•
•
• 115/230 Vac (-15 /+10%), 50÷60Hz 40W max
(VEGA II versions XXX5-XXXX)
• 24 Vdc (-15 /+10%) 40W max
(VEGA II versions XXX7-XXXX)
• 115/230 Vac (-15/+10%), 50÷60Hz 40W max
(VEGA II versions XXX5-XXXX)
• 24 Vdc (-15 /+10%) 40W max
(VEGA II versions XXX7-XXXX)
n° 2 inputs two channels phased of 90° ± 30°e, fmax 5kHz
• NPN open collector
• Square wave inputs: V(High) = 4 Vdcmin ÷ 24 Vdcmax; V(Low) = 1,3 Vdc max
• proximity Namur
• 4÷20 mA pulses
• +5 Vdc 100 mA
• +15 Vdc 100 mA
n°16, powered by VEGA II (+15 Vdc)
or by external power supply V(Low)=1,5 Vdcmax V(High)=10÷30 Vdc;
n°8 current source powered by external power supply (5 ÷ 30 Vdc) Imax=0,5 A each
n°4 current source powered by VEGA II (+15 Vdc) or by external power supply (5÷30 Vdc)
Imax=0,3 A maximum for all outputs.
n° 8 of witch:
• n° 4 mechanical relays (for all versions)
• n° 4 Vac solid state relays for VEGA II versions powered by Vac voltage
• n° 4 Vdc solid state relays for VEGA II versions powered by Vdc voltage
Characteristics for Vac solid state relay
Characteristics for Vdc solid state relay
•
•
•
•
•
Temperature inputs (optional)
4÷20 mA inputs (optional)
4÷20 mA outputs (optional)
Serial communication lines
Internal battery
Display
Operating temperature
Storage temperature
Relative humidity
Ex environment according to ATEX
Weatherproof
Housing material
Dimensions
Weight
Fitting
Cable entries
Push-buttons
Digital inputs
Digital outputs
Power outputs
Operating voltage range: 60÷260Vac
(50÷60Hz)
Load Current Range: 1 A
Max Off-State Leakage @ Rated Current: 2 mA
Max On-State Voltage Drop @ Rated Current:
1,5 Vpk
Minimum load current: 50 mA
•
•
•
•
Operating Voltage Range 5÷30 Vdc
Max Load Current: 2 A
Max.Off-State Leakage @ Rated Voltage 200
µAdc 100 µAdc
Max. On-State Voltage Drop @ Rated Current
1.5 Vdc 0.4 Vdc
Used for temperature sensor type Pt100 Class A IEC751, DIN 43760 (0,00385Ω/°C.).
n° 2 two wires 4÷20 mA. The resolution of the inputs is 16 bits (65.536 points).
n° 2 two wires 4÷20 mA. The resolution of the outputs is 12 bits (4096 points).
• n° 2 lines RS485 two wires switchable as RS232 (RX, TX, COM)
• n° 1 lines RS422/485 four wires
• n° 1 RS232 (RX, TX, COM)
Battery pack made by 10 primary cells 1,2V Ni Mh
Graphic Liquid Crystal Display (LCD) 240x128 pixel; white LED backlight.
-25 ÷ +55°C (-13÷131°F)
Note: The minimum temperature can be obtained only if the internal heating device is
powered.
-40 ÷ +65°C (-40÷149°F)
5÷95 % without condensation
II 2 G Ex d IIB T6 Gb
IP66
Approval INERIS 00 ATEX 0025
Approval INERIS 00 ATEX 0025
Aluminium casting
See drawing
20 kg approx.
• On the meter by means of N.4 M6 screws on holes Ø168,3 (compatible with VEEDER
ROOT™ mech. Counters)
• Remote by means of dedicated support swivelling that can be directed and locked
in the right position
n° 2 holes 1” NPT + n° 4 holes 3/4”NPT
n° 19 solid state (10 alphanumeric + 9 function Keys)
Inputs and outputs on optional DIGITAL I/O BOARDs “SES X”
n°16, powered by VEGA II (+24Vdc)
or by external power supply V(Low)=1,5 Vdcmax V(High)=10÷30 Vdc;
n°8 current source powered by external power supply (5÷30 Vdc) Imax=0,5 A each
• SES 1 = n. 4 Vac SOLID STATE RELAYS + n. 4 MECHANICAL RELAYS
• SES 2 = n. 4 Vdc SOLID STATE RELAYS + n. 4 MECHANICAL RELAYS
• SES 3 = n. 8 MECHANICAL RELAYS
• SES 4 = n. 8 Vac SOLID STATE RELAYS
• SES 5 = n. 8 Vdc SOLID STATE RELAYS
ISOIL IMPIANTI S.p.A. - 24061 Albano S. Alessandro (BG) - Italy
Tel. : +39.02.91988.5
web: www.isoilmeter.com
DS/VE/0018/EN -05/13
fax: +39.02.66012457
e-mail: [email protected]
Pag. 5/5
VERSIONS OF FLOW COMPUTER “VEGA II ”
X
TOTALIZER + PRESET
TOTALIZER + PRESET+ TEMPERATURE COMPENSATION
3
4
WITHOUT INTERNAL PULSES EMITTER
2
4
X
-
X
X
X
0
2
BLENDING
ONE METER
4
9
POWER SUPPLY 115/230 Vac
POWER SUPPLY 24 Vdc
5
7
WITHOUT OPTIONAL DIGITAL I/O BOARD
SES 1 -16 INPUTS + 4 Vac SOLID STATE RELAYS + 4 MECHANICAL RELAYS + 8 DIGITAL OUTPUTS
SES 2 -16 INPUTS + 4 Vdc SOLID STATE RELAYS + 4 MECHANICAL RELAYS + 8 DIGITAL OUTPUTS
SES 3 - 16 INPUTS + 8 MECHANICAL RELAYS + 8 DIGITAL OUTPUTS
SES 4 - 16 INPUTS + 8 Vac SOLID STATE RELAYS + 8 DIGITAL OUTPUTS
SES 5 - 16 INPUTS + 8 Vdc SOLID STATE RELAYS + 8 DIGITAL OUTPUTS
WITHOUT SERIAL LINE n°4 (RS232)
WITH SERIAL LINE n°4 (RS232)
0
1
2
3
4
5
N
1
WITHOUT I/O 4÷20 mA
WITH TWO INPUTS AND TWO OUTPUTS 4÷20 mA
FIXED FIELD
0
1
0
ISOIL IMPIANTI S.p.A. - 24061 Albano S. Alessandro (BG) - Italy
Tel. : +39.02.91988.5
web: www.isoilmeter.com
DS/VE/0018/EN -05/13
fax: +39.02.66012457
e-mail: [email protected]
Pag. 6/6