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Emerson | ControlWave GFC IStran | User manual | ControlWave® Intrinsically Safe Gas Flow Computer
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CWGFC-IS
D301635X012
Product Data Sheet
October 2011
ControlWave ® Intrinsically Safe Gas Flow
Computer (GFC-IS)
The ControlWave® Intrinsically Safe Gas Flow Computer
(GFC-IS) is an intrinsically-safe integrated “all in one box” chart replacement. The intrinsically safe features of the
ControlWave GFC-IS are designed to prevent sparks or a release of energy that could ignite a hazardous atmosphere.
The GFC-IS is UL approved as non-incendive for operation in
Class I, Division 1 hazardous areas.
The GFC-IS is delivered in a compact polycarbonate enclosure that has provisions for a display/keypad, DP/P/T transducer assembly, and 6 Volt battery/solar power system. The GFC-IS includes a base API 21.1 flow measurement application program, 2 user-configurable digital inputs (DI) or pulse inputs (PI), a DP/P sensor assembly, an RTD interface, and a shunt regulator for solar panel charging of an internal, lead acid cell battery.
The CPU and I/O boards are located behind a shield in the enclosure and all wiring termination blocks are on a termination panel. You must wire all connections from the terminal panel or from the ISProx board out through a conduit on the right side of the GFC-IS enclosure in order to preserve the integrity of the intrinsically-safe rating.
Hardware
32-bit ARM9 platform capable of dual-run flow computing and process automation operations
Gauge pressure or DP/P sensor assembly can be removed and replaced independently of the electronics
Precision RTD interface provides accurate temperature measurement
Low power consumption minimizes costs
Two serial communication ports
Base I/O includes 2 DI/PI
Optional I/O expansion includes 2 DI/DO, 4 DI, 2 DO,
2 High-speed Counter Inputs, and 3 AI (1-5 V)
Application Areas
The GFC-IS is appropriate to all flow computer and chart replacements applications, including:
Off-shore platforms
Compressor stations
Storage facilities
Transmission metering stations
Distribution/LDC metering/gate stations
ControlWave Intrinsically Safe
Gas Flow Computer
Communications
The GFC-IS has two built-in RS-232 communication ports and one RS-485 port. One RS-232 port (Com 1) is factory wired to the LOI port of the bottom of the GFC-IS enclosure.
Inputs and Outputs
The GFC-IS supports a variety of I/O options. The base unit includes two I/O ports that are user-configurable as digital inputs (DI) or pulse inputs (PI). Additional I/O modules may be added including:
2 DI/DO, 4 DI, 2 DO, 2 HSC, and 3 AI
2 DI/DO, 4 DI, 2 DO, and 2 HSC
RTD Input
Display/Keypad
The GFC-IS display is comprised of a four line by twenty character liquid crystal display with adjustable contrast. The display allows you to view and modify variable values and associated status information via an ACCOL3 Function Block.
Variables include inputs, process variables, calculated variables, constants, setpoints, tuning parameters, outputs, and alarm state.
You can input data into the GFC-IS via a 2-button or 25-button keypad. Each key on both keypads has a microswitch for positive tactile feedback.
Remote Automation Solutions
October 2011
IStran
The IStran is the communications interface that allows the
GFC-IS to communicate with devices located outside of the hazardous area. The IStran provides 500 V dc isolation between the two devices, and also allows the GFC-IS to receive power from outside the hazardous location. The
IStran allows the GFC-IS to control power to a radio or modem located outside the Division 1 area, and operates at up to 19200 bps.
ISProx
The Intrinsically Safe Proximity Sensor Interface (ISProx) provides an intrinsically safe interface to one or two variable impedance proximity sensors (NAMUR Gap Sensors). The
ISProx conditions and converts incoming signals to open drain outputs (DOs) which in turn drive digital inputs (DIs) or high-speed counter inputs (HSCs).
TeleCounter
The TeleCounter is an optional pulse counting device and odometer. The integrated TeleCounter assembly directly mounts to a rotary positive displacement meter, and is mounted to the bottom of the GFC-IS enclosure by a water tight gasket. The TeleCounter can be configured to accept a clockwise or counterclockwise turbine meter shaft rotation with index rates of 1, 5, 10, 100, 1000 CF/Rev or 0.1, 1, 10,
100 M3/Rev.
Firmware/Software Features
ControlWave GFC is pre-programmed to meet API 21.1 requirements for a two-run metering station with networking via BSAP or Modbus. Web-style menu pages are pre-configured for all user operations.
ControlWave Designer is an IEC 61131-3 programming environment that allows you to modify the base application or create a completely customized program. ControlWave
Designer includes an extensive library of more than 200 basic IEC 61131-3 functions and function blocks common to many IEC 61131-3 based products.
In addition to the basic functions and function blocks,
ControlWave Designer includes the ACCOL III function block library. This library includes over sixty function blocks that are valuable for use in oil & gas and process measurement & control applications. The ACCOL III function block library is designed to take full advantage of the significant features offered by the ControlWave GFC-IS.
CWGFC-IS
Data Integrity
The GFC-IS ensures data integrity, in the event of a communication interruption, by storing critical time-stamped alarm and historical data in the controller memory. This data is then retrieved when communication is restored.
Sensor Assembly
Using the sensor assembly integrated in the instrument package is the easiest implementation for a single meter run; however, the base application program also allows use of external transmitters, with or without the integrated sensor assembly.
Most two-run systems use the integrated sensor assembly for the first run and three 1-5 Volt transmitters for the second run.
Mounting
The GFC-IS can be remotely mounted on a wall, a panel, or a two-inch pipe. It can also be mounted directly on the pipeline by utilizing a manifold block.
Options
The GFC-IS supports the following:
Integral, Bristol gauge pressure or multivariable (MVT)
DP/P sensor assembly and upper range limits.
Pre-wired bendable RTD assembly.
Thermowell.
I/O card, including 2 DI/DO, 4 DI, 2 DO, 2 HSC/DI and, optionally, an additional 3 AI.
Choice of integral, battery and solar power systems.
Stainless steel manifold adapters.
A mounting bracket which affixes to the neck of the housing and allows installation on a wall or 2” pipe.
RS-232 interface PC cables are available in either 10 Ft. or
25 Ft lengths.
6 Volt IS solar panel.
2 www.EmersonProcess.com/Remote
CWGFC-IS
ControlWave GFC-IS
October 2011
Processor
Type
Memory
Boot Flash
32-bit 14 MHz ARM9TDMI RISC Core Processor
Flash
SRAM (External)
Time Functions
Clock
Communications
COM1
(this port can only be connected to the LOI port)
COM2
(this port can only be connected to an IStran communications port)
512KB
Holds boot/download code and soft switch configuration parameters
8MB
2MB battery-backed
Serial real-time clock accurate to 1 second/day at 25 ºC, battery backed
Type RS-232
Connector Physical Interface via 3-pin connector, which is internally linked to the circular, Alden connector on the bottom of the enclosure door
Tx, Rx, GND with DCD asserted when external cable is plugged in
Note: Area must be declassified before making a physical connection to the Alden connector.
Type RS-232
Connector 8-pin terminal block
Supports RTS, CTS, DTR, DCD and DSR modem control signals
RS-232 transceivers are enabled by the port’s DTR
DCD input remains active even when the port is disabled
Note: Connections must be routed to IStran located in a nonhazardous area (25 foot maximum length).
COM3
(this port can only be connected to an MVT
3808)
Surge Suppression
Type RS-485
Connector 5-pin terminal block
All communication ports are transorb protected to ±15KV ESD
Inputs/Outputs
RTD
(interface only)
Type The greater of ± 0.1 °C, or ± 0.1 % of reading
Conversion Accuracy The greater of ± 0.1 °C, or ± 0.1 % of reading
Ambient
Effect
±0.01°C / ºC max
Long Term Stability at
Constant Conditions
±0.25 °C / month max
Note: RTD probe interchangeability can add ±0.7°C of uncertainty to the measurement.
Pulse/Discrete Inputs Quantity 2
Maximum Scan Rate
Input Filter www.EmersonProcess.com/Remote
Once per second
20 microseconds
3
October 2011
Pulse/Discrete Inputs
(continued)
Input Current
Voltage Range
On-State Voltage
200 μA nominal at 3.3V per input
Internally sourced dry contact input - 3.3 Vdc
>1.86 V
Off-State Voltage
Surge Suppression
<1.5 V
16 V transorb between signal ground
Meets ANSI/IEEE C37.90-1978
Input
Range
0-10 kHz
Digital Inputs
CWGFC-IS
Quantity 6 total: 4 DI and 2 selectable DI or DO
Note: Total DI points plus DO points cannot exceed eight
Maximum Scan Rate
Input Filter
Input Current for DI points 1 — 4 (those that are DI-only)
Input Current for DI points 5 — 6 (those that are selectable as DI or
DO)
On-State Voltage
Off-State Voltage
>1.6 V
<1.3 V
Once per 250 ms
15 ms
Configurable as 60 μA for low power applications or 2 mA nominal at
3.3V per input
Configurable as 200 μA for low power applications or 2.2 mA nominal at 3.3V per input
4
Digital Outputs
Surge Suppression
Quantity
30V transorb between signal and ground
Meets ANSI/IEEE C37.90-1978
4 total; 2 DO and 2 selectable DI or DO
Note: Total DI points plus DO points cannot exceed eight
Open Drain MOSFET Type
Maximum Scan Rate Once per 250 ms
Operating
Range
10 Vdc
Maximum Load Current 250 mA
Surge Suppression 30V transorb between signal and ground.
Meets ANSI/IEEE C37.90-1978. www.EmersonProcess.com/Remote
CWGFC-IS
Counter Inputs Quantity
Frequency Range
Input Range
Analog Inputs (optional) Quantity
Type
Input Filtering
Maximum Scan Rate
Signal Conditioning
On-State Voltage
Off-State Voltage
Surge Suppression
2; also operable as DI points
Low-Speed 0 — 300 Hz
High-Speed 0 — 10 kHz
Internally sourced dry contact input
1 ms or 20 μs
Once per 250 ms
Switch selectable high and low speed input
> 1.86 V
< 1.5 V nominal
30 V transorb between signal and ground
Meets ANSI/IEEE C37.90- 1978
3
Externally sourced, single—ended inputs, 1—5 V dc
Input Impedance
Input Filtering
Maximum Scan Rate
Channel Settling Time
Input Accuracy
Surge Suppression
1 MΩ
12 Hz
Once per 250 ms
600 ms to be within 0.01% of input signal
0.1% of span at 25˚C
0.2% of span at 40˚C to 70˚C
30 V transorb between signal and ground
Meets ANSI/IEEE C37.90- 1978
Power
Consumption
Input Voltage Range
Fuses
Surge Suppression
Base Unit
5 V dc to 8.28 Vdc
6 V dc: 10 mA
1.5 A from charge regulator, 0.125 A for battery input
16 V dc transorb between signal and ground
Meets ANSI/IEEE C37.90- 1978
Temperature-compensated charge control with cut-off
7.2 V for a 6 V battery
Charge Regulator
Threshold voltage for shunt at 23ºC
Backup Battery Backs up real-time clock and SRAM
300 mA-hour lithium coin cell, 9000 hour expected backup time
Power Consumption
(keypad)
2.5 mA @ 3.3 V (0.008 watts) www.EmersonProcess.com/Remote
October 2011
5
October 2011
Physical
Dimensions
Sensor
Keypad / Display
Wiring
Weight
Environmental
Operating Temp
Storage Temp
Operating Humidity:
Immunity
Electro-Static Discharge
Radiated Emissions
Vibration
NEMA Rating
6
CWGFC-IS
Housing
Clearance
15.77” H x 7.8” W x 9” D
Please allow at least 2.5” space underneath for cabling
MVT Assembly (optional) 3” H x 3.75” W x 2.5” D
Mounting Can be pipe-mounted, wall-mounted, or direct-mounted (in the last case, Emerson recommends PGI Direct Mount manifold products); a kit for affixing to a 2” pipe or mast is available.
Diaphragm Material 316 Stainless Steel
Fill Medium
Flange Material
DC 200 Silicone
316 Stainless Steel
Flange Bolt Material DP
Units
316 Stainless Steel
Connections
¼” NPT female
4-line by 20-character backlit liquid crystal display with adjustable contrast
2-button or 25-button keypad with membrane keys with tactile feedback
Self-adhesive overlay mounts to the enclosure door or panel (ControlWave GFC package is delivered with this assembly installed on the door)
Configuration via ACCOL III Function Block
Dimensions
Window size
Character size
7.4”H x 5.5”W (18.8cm x 14.4cm)
1.1” H x 3.1”W (2.8cm x 7.9cm)
4mm H x 3mm W
Up to 16 gauge wire size at the terminal block
Minimum 10 lbs
Battery + MVT Assembly 18.5 lbs
Maximum with Radio 20 lbs
Externally Powered -40 to 70ºC (-40 to 158ºF)
With Lead Acid Batteries -20 to 60ºC (-4 to 140ºF)
-40 to 85ºC (-40 to 185ºF)
10 to 95% RH non-condensing
In conformity with ENV 50140 Radio-frequency electromagnetic field amplitude modulated EMC
Meets IEC EN 61000-4-2, EN 61326
EN 55011:1998 Class A ITE emissions requirements (EU); ICES-003 Issue 3 Class A Digital Apparatus emissions requirements (Canada); AS/NZS3548:1995/ CISPR Class A ITE emissions requirements
(Australia). EN 6100-4-3.
Maintains proper operation while subjected to a 2.0g acceleration over 10- 150 Hz and 1.0 g acceleration over 150-2000 Hz (ISA Process Mount).
Nema 3R (Nema 4x except with a battery vent) www.EmersonProcess.com/Remote
CWGFC-IS
Approvals
Product Markings for
Hazardous Locations
(USA):
Class I Div. 1, Groups C & D
T3C
October 2011 www.EmersonProcess.com/Remote 7
October 2011
Emerson Process Management
Remote Automation Solutions
11100 Brittmoore Park Drive
Houston, TX 77041 U.S.A.
T +1 713 827 6380 www.EmersonProcess.com/Remote
ControlWave GFC-IS
© 2009—2011 Remote Automation Solutions, division of Emerson Process Management. All rights reserved.
Bristol, Inc., Bristol Canada, BBI SA de CV and Emerson Process Management Ltd, Remote
Automation Solutions division (UK), are wholly owned subsidiaries of Emerson Electric Co. doing business as Remote Automation Solutions, a division of Emerson Process Management. FloBoss,
ROCLINK, Bristol, Bristol Babcock, ControlWave, TeleFlow and Helicoid are trademarks of
Remote Automation Solutions. AMS, PlantWeb and the PlantWeb logo are marks of Emerson
Electric Co. The Emerson logo is a trademark and service mark of the Emerson Electric Co. All other marks are property of their respective owners.
The contents of this publication are presented for informational purposes only. While every effort has been made to ensure informational accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. Remote Automation Solutions reserves the right to modify or improve the designs or specifications of such products at any time without notice. All sales are governed by Remote Automation Solutions’ terms and conditions which are available upon request. Remote Automation Solutions does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any
Remote Automation Solutions product remains solely with the purchaser and end-user.
Remote Automation Solutions
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