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Technical specifications for 1C31189G01
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Manufacturer:Emerson
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Product Category:DCS Systems
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Spare Part Number:1C31189G01
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Estimated shipping dimensions:12.1x5.2x16.6cm
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Weight:0.32 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Sensor input:One sinusoidal or pulse-train tachometer
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Low-resolution output:16-bit; 200 Hz to 51,200 Hz
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Low-resolution update:5 ms
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High-resolution output:32-bit; 0.72 Hz to 65,535 Hz
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Personality module:1C31192G01
Information
Overview
Manuals
Common Applications
Product Precautions
Westinghouse 1C31189G01 measures tachometer frequency for Ovation overspeed detection and speed-regulation calculations.
- Provides one speed sensor with Ovation point outputs for the documented speed detector electronics module function.
- Handles tachometer frequency input through the specified Ovation I/O subsystem.
- Works with 1C31192G01 speed-detector personality module.
- The module provides separate fast overspeed and high-resolution regulation values from the same sensor signal.
The speed detector electronics module belongs in the controlled Ovation I/O subsystem and works with 1C31192G01 speed-detector personality module. Its field connection, companion hardware and project configuration must be reviewed together before the channel is returned to service.
Important Notice: Use 1C31189G01 only with 1C31192G01 speed-detector personality module; verify the field interface and controlled configuration before energizing the subsystem.
Westinghouse 1C31189G01 Manuals & Downloads
Westinghouse 1C31189G01 Official Technical Reference Excerpt (PDF)Westinghouse 1C31189G01 Installation & Commissioning Guide (PDF)
The first document covers the product function, system role and technical selection. The installation guide covers identification, connection checks, commissioning and the acceptance record.
Installed-base maintenance
Restores the documented speed detector electronics module position without changing the approved system architecture.
Loop or channel service
Supports verification of tachometer frequency input at the assigned control-system channel.
Planned replacement
Provides an exact-identity replacement path when 1C31192G01 speed-detector personality module and the field interface have been confirmed.
Commissioning support
Allows the responsible engineer to prove wiring, configuration, status and response for one speed sensor with Ovation point outputs.
Before installing Westinghouse 1C31189G01, confirm the documented system, interfaces and controlled configuration.
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Match the complete 1C31189G01 marking to the work order and installed position before removal.
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Confirm 1C31192G01 speed-detector personality module before making or breaking any field connection.
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Keep the assigned tachometer frequency input within the documented subsystem and range.
4
Record terminal designations, polarity, common and shield treatment before disconnecting conductors.
5
Inspect module seating, connector keying, terminal condition and strain relief before power is restored.
6
Restore the controlled channel configuration, range selection and alarm or timeout behavior after installation.
7
Check local indicators and controller diagnostics for internal, communication or channel faults during commissioning.
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Prove the intended response across one speed sensor with Ovation point outputs and record the acceptance result before release.
Technical notes
Use 1C31189G01 only with 1C31192G01 speed-detector personality module; verify the field interface and controlled configuration before energizing the subsystem.
FAQ View All FAQ
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What tachometer signals can Westinghouse 1C31189G01 process?The speed-detector electronics accept one sinusoidal or pulse-train tachometer signal through the matched field interface.
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Which frequency band feeds the low-resolution output of Westinghouse 1C31189G01?The 16-bit low-resolution measurement covers 200 Hz to 51,200 Hz.
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What range is assigned to the high-resolution value from Westinghouse 1C31189G01?The 32-bit speed-regulation output covers 0.72 Hz to 65,535 Hz.
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How often is the fast output of Westinghouse 1C31189G01 updated?The low-resolution overspeed-oriented value is updated every 5 ms.
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Why does Westinghouse 1C31189G01 produce two speed values from one sensor?The fast 16-bit path supports overspeed response, while the 32-bit path provides greater resolution for speed regulation.
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Which personality module connects the tachometer to Westinghouse 1C31189G01?The required field-interface partner is 1C31192G01.
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Can a very low shaft-speed signal be evaluated through the 16-bit path of Westinghouse 1C31189G01?Signals below 200 Hz fall outside the low-resolution range and must be evaluated through the high-resolution path, which starts at 0.72 Hz.
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What dynamic check should follow replacement of Westinghouse 1C31189G01?Run a controlled tachometer-frequency test and compare both the 5 ms low-resolution value and the 32-bit regulation value across their intended ranges.
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