General Information

• Brand: Westinghouse
• Model: 1C31132G01
• Product Type: Analog Input (AI) Module
• System Compatibility: Exclusively designed for Westinghouse Ovation DCS, compatible with Ovation 1.x to 4.x software versions.
• Core Function: Converts continuous analog signals (from field sensors) into digital data readable by the DCS, supporting high-precision industrial process monitoring.

Technical Specifications

1. Signal Input Configuration

• Input Channels: 8 independent differential analog input channels (isolated between channels to avoid cross-interference).
• Supported Signal Types:
  • Voltage signals: ±5V DC, ±10V DC (full-scale range).
  • Current signals: 4–20 mA DC (two-wire or four-wire sensor compatibility).
  • Thermocouple signals: Type J, K, T, E, R, S, B (optional, via software configuration).
  • RTD signals: Pt100 (3-wire, 100Ω at 0°C, optional with external signal conditioning).
• Input Resolution: 16-bit ADC (analog-to-digital converter), ensuring high signal measurement accuracy.
• Input Impedance: ≥10 MΩ (for voltage signals); ≤100Ω (for current signals).

2. Electrical Performance

• Measurement Accuracy:
  • Voltage signals: ±0.1% of full scale (FS) at 25°C (77°F).
  • Current signals: ±0.05% of FS at 25°C (77°F).
  • Thermocouple signals: ±0.2°C (for Type K/J) within -100°C to +1000°C.
• Common-Mode Rejection Ratio (CMRR): ≥80 dB (at 50/60 Hz), suppressing electrical noise from industrial environments.
• Power Supply:
  • Backplane power: 5V DC (from Ovation DCS rack), typical current draw: 0.8A.
  • Isolation power: 24V DC (external, for signal isolation), typical current draw: 0.3A.

3. Physical & Environmental Specifications

• Dimensions: 152.4 mm (W) × 228.6 mm (H) × 38.1 mm (D) [6.0” × 9.0” × 1.5”], matching Ovation DCS rack mounting standards.
• Mounting: 3U rack-mounted (fits Westinghouse Ovation standard 19-inch DCS cabinets).
• Operating Temperature: 0°C to 60°C (32°F to 140°F) (ambient, non-condensing).
• Storage Temperature: -40°C to 85°C (-40°F to 185°F).
• Humidity: 5% to 95% RH (non-condensing, no dew formation).
• Vibration Resistance: 5 g (10–500 Hz) per IEC 60068-2-6 (sinusoidal).
• Shock Resistance: 25 g (11 ms half-sine) per IEC 60068-2-27 (transient).
• Protection Class: IP20 (front panel), requiring installation in enclosed DCS cabinets.

4. Safety & Compliance

• Isolation: 2.5 kVrms isolation between channels, between channels and backplane, and between channels and power supply (per IEC 61010-1).
• Certifications: CE (EN 61326-1 for EMC), UL 508 (industrial control equipment), CSA C22.2 No. 14 (Canadian safety standard).

Key Features

1. High Precision & Stability: 16-bit ADC and low-drift components ensure long-term measurement accuracy, critical for precision processes (e.g., chemical reaction control, power plant steam pressure monitoring).
2. Channel Isolation: Independent isolation between channels prevents signal crosstalk and protects the module from voltage spikes in the field.
3. Flexible Configuration: Signal types (voltage/current/thermocouple/RTD) can be configured via Ovation DCS software (no hardware jumpers), simplifying on-site setup.
4. Diagnostic Functions:
   • Built-in self-test (BIST) for module hardware (e.g., ADC, power supply) – alerts sent to DCS if faults are detected.
   • Overrange/underrange detection for input signals, with configurable alarm triggers.
5. Hot-Swappable: Supports hot swapping (when installed in Ovation redundant racks), allowing module replacement without shutting down the DCS, reducing system downtime.

Applications

• Power Generation: Monitoring steam temperature/pressure in thermal power plants, turbine oil pressure, and generator cooling water flow.
• Chemical & Petrochemical: Measuring reactor temperature, pipeline pressure, and raw material flow rates in refining or chemical processing.
• Water & Wastewater: Monitoring water level, pH value, and pump discharge pressure in treatment plants.
• Industrial Manufacturing: Tracking temperature of industrial ovens, hydraulic system pressure, and conveyor speed in production lines.

Documentation & Support

• Technical Manual: Westinghouse Ovation 1C31132G01 Analog Input Module Installation & Maintenance Guide (Document No. 1C31132G01-01) – includes wiring diagrams, software configuration steps, and troubleshooting.
• Software Compatibility: Requires Ovation DCS Configuration Studio (v3.5 or higher) for signal setup and parameter adjustment.
• Spare Parts: Compatible with Westinghouse Ovation spare kits (e.g., 1C31132G01-KIT for replacement components).

Ordering Information

• Base Model: 1C31132G01 (8-channel analog input module, standard version).
• Optional Accessories: 24V DC isolated power supply (1C31227G01), terminal blocks (1C31234G01), and EMC shielding kits.
• Lead Time: Typically 4–6 weeks for standard orders; 2–3 weeks for emergency spare parts (via Westinghouse authorized distributors).