Product Short Description
Product Name: Ovation 8-Channel Analog Input Module (thermocouple/mV class with CJC).
Product Introduction: Field input module for Emerson Ovation DCS, used with companion electronics modules (1C31113G01/G02/G03) to build a 13-bit thermocouple or low-level mV analog input bank. Includes cold-junction compensation logic.
Description
Technical Specifications:
- Channels: 8 thermocouple + 1 internal CJC channel
- Input Ranges: ±20 mV / ±50 mV / ±100 mV (depends on mate electronics module)
- Resolution: 16-bit ADC class, ±0.5 °C thermocouple accuracy (0–70 °C)
- Sampling: 300 ms typical, 600 ms max
- Isolation: 1000 V AC/DC channel-to-logic
- CMRR: 120 dB; NMRR: 60 dB at 50/60 Hz
- Backplane Power: 24 V DC from Ovation chassis
- Operating Temp: 0–60 °C
- Humidity: 5–95 % non-condensing
- Hot Swap: Yes
Functional Features: Built-in CJC sensor, shield handling via terminal block cover 1C31207H01, local/field ground jumper, channel diagnostics.
Application Scenarios: Furnace thermocouple scanning, reactor skin temperature, turbine exhaust TC arrays, boiler header monitoring.
Structure & Material: Ovation 1U I/O card, molded plastic housing, metal backplane connector, terminal-block interface.
Working Principle: TC voltage amplified and digitized by mate electronics module; CJC sensor corrects reference junction; result converted to engineering units in controller.
Installation Requirements: Install in Ovation I/O chassis with correct mate electronics module, use shielded TC cable, ground shield at single point, set ground jumper per CE/non-CE rule.
Usage Notes: 9th channel is internal only—do not wire. Keep terminal block cover installed for CJC accuracy. Open module only with ESD precautions.
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