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Technical specifications for 7379A21G02
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Manufacturer:Emerson
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Product Category:DCS Systems
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Spare Part Number:7379A21G02
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Tariff Code:8537101190
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Counliy of origin:USA
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Product type:QAV analog input point card
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Group:G02
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Channel count:6
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Normal input range:-12.5 to +50 mVDC
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Reduced-accuracy range:-50 to +50 mVDC
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Maximum source impedance:500 ohms
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Resolution:13 bits including polarity
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Line-frequency selection:50 or 60 Hz by jumper on applicable revisions
Information
Overview
Manuals
Common Applications
Product Precautions
In the WDPF Q-Line signal path, WESTINGHOUSE 7379A21G02 conditions, calibrates and multiplexes six low-level inputs onto the DIOB. Channel polarity, shield routing, source impedance and line-frequency selection are commissioning-critical.
- Six isolated analog channels
- -12.5 to +50 mV normal range
- 13-bit digital output
- Auto-zero and gain correction
Commission each G02 millivolt channel with a traceable source while checking polarity, source impedance, shield routing and the applicable 50/60 Hz selection.
Important Notice: Isolate all six field circuits before handling WESTINGHOUSE 7379A21G02.
WESTINGHOUSE 7379A21G02 Manuals & Downloads
WESTINGHOUSE 7379A21G02 Official Technical Reference Excerpt (PDF)WESTINGHOUSE 7379A21G02 Installation & Commissioning Guide (PDF)
The official excerpt supplies the G02 range, channel and conversion data; the installation guide turns those limits into polarity, impedance, shield, jumper and calibration checks.
Low-level process measurement
Acquires six isolated millivolt signals.
Thermocouple service
Supports configured low-level sensor inputs in the G02 range.
Legacy Q-Line maintenance
Restores an installed QAV G02 point-card position.
Input fault isolation
Separates sensor, wiring, conversion and DIOB checks.
Isolate the six low-level circuits and document range, polarity, shields and source impedance before handling the G02 card.
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Isolate all six field circuits before handling WESTINGHOUSE 7379A21G02.
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Confirm the complete G02 identity and installed QAV card level.
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Record channel ranges, polarity, shields and source types before removal.
4
Keep source impedance at or below the documented 500-ohm limit.
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Set the 50/60 Hz jumper to match the site power-line frequency where applicable.
6
Maintain the front-edge field connector and rear-edge DIOB connector orientation.
7
Check auto-zero, gain correction and IMOK behavior after startup.
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Prove every used channel with a traceable millivolt source before release.
Technical notes
WESTINGHOUSE 7379A21G02 is a six-channel Q-Line QAV analog input card for isolated low-level millivolt signals.
FAQ View All FAQ
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How many inputs does WESTINGHOUSE 7379A21G02 provide?It provides six individually isolated analog input channels.
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Which normal range applies to WESTINGHOUSE 7379A21G02?The G02 normal input range is -12.5 to +50 mVDC.
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What reduced-accuracy range is associated with WESTINGHOUSE 7379A21G02?The extended reduced-accuracy range is -50 to +50 mVDC.
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Which source-impedance limit applies to WESTINGHOUSE 7379A21G02?The maximum source impedance is 500 ohms.
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What output resolution does WESTINGHOUSE 7379A21G02 use?The QAV card delivers 13-bit data including the polarity bit.
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How are WESTINGHOUSE 7379A21G02 channels isolated?Each analog channel uses its own transformer-isolated voltage-to-frequency conversion circuit.
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Why is the line-frequency setting important for WESTINGHOUSE 7379A21G02?The 50/60 Hz selection controls the conversion timing and normal-mode rejection arrangement.
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What completes WESTINGHOUSE 7379A21G02 acceptance?All used channels must pass polarity, range, source-impedance, calibration and DIOB indication checks.
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