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The Emerson 1C31194G02 is a valve positioner module designed for use with Emerson's Ovation Distributed Control System (DCS), primarily in power plants and industrial process control applications.
Overview
Manufacturer: Emerson (formerly Westinghouse/Ovation)
Model: 1C31194G02
Type: Electro-pneumatic valve positioner
Compatibility: Ovation DCS (used in power generation, oil & gas, chemical plants)
Primary Function: Converts 4-20 mA control signals into pneumatic output to precisely position control valves.
Key Specifications
| Parameter | Details |
|---|
| Input Signal | 4-20 mA (from Ovation DCS controller) |
| Output Signal | Pneumatic (3-15 psi or 20-100 kPa) |
| Supply Air Pressure | 20-100 psi (1.4-6.9 bar), clean & dry |
| Accuracy | ±0.5% of span |
| Enclosure Rating | NEMA 4X (weatherproof & corrosion-resistant) |
| Mounting | Directly on linear or rotary valves |
| Communication | Ovation DCS integration (HART optional) |
Functionality
Closed-loop control: Adjusts valve position based on DCS command and valve feedback.
Fail-safe modes: Configurable for fail-open (FO), fail-closed (FC), or last position (FL).
Diagnostics: Some versions support HART communication for valve health monitoring.
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