GE Dresser Electronic Instruments IMCW2 Specification Sheet

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GE Oil & Gas
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Dresser* Micro Corrector - IMC/W2
Integral Volume Correction Differential Pressure (DP) Monitoring
Versions: ptz-dp + LOG, T-dp + LOG, ptz + LOG, P + LOG, and T + LOG
GE Oil & Gas offers an integrated solution, the Dresser Differential Pressure (DP) Micro Corrector, which monitors meter health by continuous measurement of the differential pressure drop across the meter. The Dresser Micro Corrector DP is capable of learning the differential pressure curve for an individual meter. During the learning period, DP is monitored using the values present in the Differential Test Acceptance Calculator (DTAC).
The Dresser Micro Corrector DP retains the last valid average differential pressure measurement on the LCD of the corrector along with the date when this occurred. It also displays the average line pressure, average line temperature and meter flow rate for that same date. The differential pressure test information required to be in compliance with state Public Utility Commission (PUC) requirements is available with the push of a button.
This offers operating efficiencies as the number of return trips to the meter set is reduced, and reduces the need for venting gas during periods of low consumption. Differential pressure test results are also logged in the data logs.
Developed from the proven IMC/W platform, the Dresser Micro Corrector provides volume correction through a simple-to-use interface. Features such as improved low flow accuracy, enhanced data logging capability, and reduced accuracy test times combine to offer a complete solution to major customers.
The Dresser Micro Corrector, model IMC/W2, an integral corrector rated for Division 1 hazardous locations by the Canadian Standards Association (CSA) and ATEX.
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Dresser Meter with IMC/W2, Model ptz-dp + LOG
Features
Monitors meter health
Reduces unnecessary scheduled maintenance
Aids in regulatory compliance of DP testing, where applicable
Last valid DP measurement displayed on LCD and live data screen
Real-time differential pressure measurement
Compatible with Dresser Series A (LMMA), Series B, and Romet meters
DP measurement is independent of volume correction
Remote monitoring capability with Dresser Micro Modems - GSM/GPRS modems
dp + LOG units feature faults for high DP and meter lock-up
Dresser GSM/GPRS Micro Modem
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Live data screen displays current DP read, as well as last valid DP read, pressure, temperature and fl ow rate with date of occurrence.
Features
Rotating index offers ease of meter reading, especially in non-typical installations
Uncorrected instantaneous flow rate displayed on LCD can help meter differential testing in the field
Maximum uncorrected peak fl ow also displayed on LCD
The SmartProve* Interface reduces meter and corrector test times by as much as 90%, and allows the meter and corrector to be tested as a complete measurement system.
User selectable trim table improves rotary meter accuracy at flow rates less than 10% of meter Qmax
Micro Generator* adds years to main battery life, extending the interval between battery changes
User terminal software allows for configuration, calibration and data log downloads
1 to 3 data logs provide for years of historical information and are configurable in increments from 1 minute to 1 month. Data logs include the option to log live battery voltage
Audit log maintains a record of configuration and calibration changes
Available with your choice of sealed alkaline or lithium battery pack
Learning methods are customer selectable in the user terminal software.
Alarms notify the user of over-range conditions for pressure, temperature, and flow rate
On units with DP transducer installed, alarms are present for higher than normal differential pressure
Alarm & fault activity is displayed in the data log and audit log reports, and the live data screen
E2PROM provides non-volatile storage of recorded data and corrector configuration regardless of battery condition
Uncorrected volume under fault register in E2PROM replicates a backup mechanical index
MS Excel® formatted reports allow for manipulation and sharing of information
Micro Generator
0.0
102
101
100
.99
ACCURACY - %
.98
.97
Trim Table
.5 1.0
ACCURACY CURVE
1.5
2.0 2.5 3.0
RATE-MCFH at INLET CONDITIONS
3.5
4.5
5.0
5.5
5.0
Dresser SmartProve Interface
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Performance
3 Fully Programmable Pulse Outputs
Resolution
Volume
Pressure
Temperature
Supercompressibility
2
)
(Fpv
Correction Factor
Accuracy over Operating Temperature Range
Line Pressure
Line Temperature
Differential Pressure
IMC/W2-PTZ
IMC/W2-P
I MC/W2-T
Long Term Stability
Pressure
Temperature
Meter Trim Table
Meter Accuracy Correction Range
E2PROM Data Log Memory
Time-stamped Entries
Parameters Logged
3
(0.01 m3)
0.01 ft
0.01 psi (1 mbar)
0.1 ºF (0.1 ºC)
0.0001
0.00001
-40 °F to 140 °F (-40 °C to 60 °C)
0.4% reading
0.9 °F (0.5 °C)
0.1 in. WC
0.5% corrected volume
0.45% corrected volume
0.25% corrected volume
0.1% FS/yr non-cumulative
0.3 ºF (0.2 ºC)/yr non-cumulative
0.3% to 10% Qmax
Up to 32,161 (depending on the number of Parameters logged)
Corr Vol; Uncorr Vol; Fault Vol; Corr Factor; Supercomp; Avg and Peak Corr Flow Rate; 4 Pressures – Min, Max, Avg and Ending; 4 Temps – Min, Max, Avg and Ending; Batt Voltage; Differential pressure test results on units fitted with DP transducer
Corrected, Uncorrected, and Alarm/Fault
Loop Voltage
Loop Current
Pulse Width
Switch Off Resistance
Switch On Resistance
Isolation
5-15 VDC
10 mA maximum
62.5, 125, 187, or 312 ms
> 2 Mohms
<10 ohms
2,500 VDC
Environment
Operating
-40º F to 140º F (-40º C to 60º C)
Temperature
Storage Temperature
Humidity
-58º F to 176º F (-50º C to 80º C)
Up to 95% sustained outdoor exposure
Enclosure
NEMA 4X (IP66)
Intrinsic Safety
Class 1, Division 1,
CSA Approval No. 1224451
Group D
Zone 0
Class-I, Division-1,
EEX ia IIC T4 Tamb = -40º C to 60º C
BAS98ATEX 1083
Group A, B, C, D
Electromagnetic/Radio Frequency Immunity
FCC Class B
Meets EMI/RFI immunity at 10 V/m,
0.1 to 1,000 MHz EN50081-1 and EN5088-2
Other
ISO-9001, CE Mark
Battery - Alkaline
Sealed Pack - Alkaline
Low Battery Reserve ­Alkaline
Battery - Lithium
Sealed Pack
Low Battery Reserve
Inputs
Volume
Pressure
Temperature
5-years nominal life
3-months approximately
15-years nominal life
1.5-years
High speed magnetic pickup in meter magnet cup
Proprietary semiconductor strain gauge
ITS-90 Platinum 100Ω RTD = 0.00385
Dresser Micro Corrector also available in ID and wall mount versions.
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Ordering Information
The IMC/W2 with or without DP can be ordered as either:
An integral part of a new meter.
As a kit to convert existing Dresser Series-A (LMMA), Series-B (TQM), or Romet meters.
For P and PTZ versions
The IMC/W2 is available in the following pressure transducer ranges:
Transducer Range Gauge Absolute
30 psi (2bar) X X
180 psi (12 bar) X X
350 psi (24 bar) X
1000 psi (70 bar) X X
1500 psi (100 bar) X
The 350 psi (24 bar), 1000 psi (70 bar), and 1500 psi (100 bar) transducers would typically be used for high pressure meter applications
The IMC/W2 can be ordered with either an external or internal pressure connection
IMC/W2’s for Series-A meters, 23M - 56M high capacity meters, and high pressure meters require external pressure connections
Optional piping kits are available for convenient connection of external pressure connections
For PTZ and T versions
All 23M - 56M high capacity meters, and high pressure meters require an external temperature probe and thermowell.
The probes are available with 5 ft or 10 ft
armored cables and in 2” or 8-1/2” in insertion lengths
Thermowells are available in sizes 1/4-NPT x 2, 1-NPT x 2, 1-NPT x 4, and 1-NPT x 6; all dimensions are in inches
A variety of pulse output connectors are available
Metal 6-pin circular twist lock connectors
Plastic cable-gland connectors
Conduit fittings and other special connectors are available upon request
The IMC/W2 will be shipped with a factory standard configuration unless the customer specifies otherwise.
A sealed battery pack is included and provides a nominal 5 years of reliable corrector operation. Adding the optional Micro Generator may extend battery life to 7 years or more.
New users will want to order the user terminal software and one or more communication cables to allow local configuration, calibration, and data retrieval. The cables are available in 6, 25, and 50 ft. lengths. Special cables are available for proving the meter and corrector with the Dresser Model-5 Transfer Prover. See TS: Dresser SmartProve for further details.
Pressure Piping Kits for Non-DP versions
Approved for use
to 350 psig G
Length of SS Tubing Part Number Part Number
32” 051416-320 051416-310
84” 051416-420 051416-410
120” 051416-520 051416-510
For IMC/W2-dp version, the following piping kits
Approved for use to
1480 psig G
are available:
Length of SS Tubing Part Number
36” 051416-600
36” with Pipe Plugs 051416-610
36” with Test Plugs 051416-620
Battery Packs
Sealed Alkaline Pack - P/N 055362-000
Sealed Lithium Pack - P/N 060587-000
Circular Conduit Plug
Communication Cables
PC (Serial) to IMC
Length of Cable Part Number
6.6’ 057135-001
25’ 057135-002
50’ 057135-003
PC (USB) to IMC
6.4’ 060506-000
Cable Gland
GE Oil & Gas
16240 Port Northwest Dr., Suite 100 Houston, Texas 77041-2645 Inside US Ph: 800.521.1114 Inside US Fax: 800.335.5224 Outside US Ph: +1 832.590.2303 Outside US Fax: +1 832.590.2494 Email: rootsmeters.inquiries@ge.com
Visit us online at: www.ge.com/energy
© 2012 General Electric Company All Rights Reserved *Denotes trademarks of General Electric Company
GEA19164_Dresser Micro Corrector_IMC/W2
Rev. 9.2012
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