Description
Emerson 1C31107G01
Technical Specifications
- Number of input channels: 8 RTD input channels
- Supported sensor: Platinum RTD PT100, PT1000
- Support 2-wire, 3-wire, 4-wire sensor connection modes
- Optical isolation between field side and DCS backplane
- Operating ambient temperature: 0℃ ~ 60℃
- Storage temperature: -40℃ ~ 85℃
- Relative humidity: 5% ~ 95%, non-condensing
- Backplane communication: Ovation dedicated DCS bus
- Channel fault diagnosis for wire break and short circuit
Functional Features High-precision resistance sampling circuit measures resistance value of RTD sensors. Built-in compensation algorithm eliminates measurement error caused by wire resistance for 3-wire and 4-wire mode. Optical isolation separates field sensor wiring and DCS backplane circuit to reduce electromagnetic interference. Independent diagnosis circuit detects sensor wire break and short circuit for each channel. Front panel LED indicators display each channel running status and fault alarm. Rack plug-in structure supports hot swap under non-critical process conditions.
Application Scenarios Ovation DCS cabinets in thermal power plants, chemical plants and metallurgical plants. It collects temperature signals of boilers, pipelines, reactors and rotating equipment bearing temperature.
Performance Parameters High-precision sampling circuit achieves accurate resistance measurement in full temperature range. Wire resistance compensation reduces measurement deviation for long sensor cables. Optical isolation withstands high common-mode voltage from field wiring. Fault detection circuit identifies sensor wiring abnormality rapidly.
Material Composition Flame-retardant engineering plastic housing. Multi-layer flame-retardant glass fiber epoxy PCB. Precision sampling chips, optical isolation components, processing microprocessor and LED indicators. Gold-plated copper alloy backplane connector. Matched terminal base uses flame-retardant PA plastic and nickel-plated copper terminals.
Structural Features Standard plug-in card for Ovation DCS rack slots. Front panel equipped with module fault LED and independent LED indicators for each channel. Guide rails and mechanical latches lock module firmly inside rack. Rear gold-plated connector mates with Ovation rack backplane bus. Front terminal base accepts RTD sensor wiring cables.
Working Principle Field platinum RTD sensors connect to terminal base and send resistance signals to module input channels. Precision sampling circuit captures resistance value of each RTD channel. Onboard processor converts resistance value into temperature value with built-in RTD curve algorithm. Temperature data transmits to Ovation controller through backplane bus. The module continuously monitors channel resistance range, triggers fault alarm and uploads alarm message to DCS system when wire break or short circuit is detected.
Installation Requirements Insert module along rack guide rail into Ovation rack slot and lock mechanical latch. Select corresponding wiring mode according to RTD sensor type, use shielded twisted pair cables. Cable shield implements single-point grounding inside control cabinet. Separate RTD signal cables from high-power cables. Reserve air circulation space for module heat dissipation.
Precautions for Use Cut off sensor loop power before wiring work. Verify sensor wiring mode matches module configuration. Check temperature reading accuracy after module replacement. Inspect sensor cable insulation regularly. Do not disassemble module housing.
