Description
Emerson 1C31127G01
Technical Specifications
- Compatible module: Ovation analog input card
- Rated signal: 4-20mA analog loop signal
- Maximum working voltage: 30VDC
- Built-in transient surge suppression components
- Operating ambient temperature: 0℃ ~ 60℃
- Storage temperature: -40℃ ~ 85℃
- Relative humidity: 5% ~ 95%, non-condensing
- Screw type wiring terminals
Functional Features Screw terminals provide stable clamping for field transmitter wires. Built-in surge protection components absorb transient voltage surges from field cables to protect analog input channels. Reserved test jacks allow technicians to measure loop current without disconnecting field wiring. Internal signal traces realize one-to-one signal mapping between field terminals and I/O module channels. Mechanical lock buckle realizes firm connection between terminal base and analog input module.
Application Scenarios Ovation DCS control cabinets used in thermal power stations, water treatment plants and chemical plants. It serves as wiring base for pressure transmitters, temperature transmitters and flow transmitters.
Performance Parameters
- Terminal clamping force maintains stable contact under long-term cabinet vibration
- Surge suppression components respond rapidly to absorb transient overvoltage
- Signal traces keep low signal loss for 4-20mA analog loop signals
- Terminals maintain stable electrical performance after repeated wiring operations
Material Composition Housing uses flame-retardant PA engineering plastic. Internal circuit board is flame-retardant glass fiber epoxy PCB. Nickel-plated copper screw terminals. Integrated transient suppression diodes and resistors. Contact pins adopt gold-plated copper alloy.
Structural Features Front assembly matched with Ovation analog input module. Multiple rows of screw wiring terminals. Independent test jack next to each signal channel. Mechanical locking buckle fastens terminal base and I/O module. Rear contact pins mate with front connector of analog input card.
Working Principle Field 4-20mA transmitters connect to screw terminals of terminal base. Analog current signals pass through surge protection components and internal PCB traces, then transmit to contact pins connected to analog input module. Surge protection components shunt surge energy to ground when overvoltage appears on field cables. Test jacks directly access signal loop for on-site current measurement.
Installation Requirements Align terminal base connector with front connector of analog input module and fasten buckle. Strip wire insulation to specified length and tighten terminal screws with standard torque. Use shielded twisted pair cables for transmitter wiring and apply single-point grounding in cabinet. Avoid pulling force on terminals from cable routing.
Precautions for Use Disconnect field transmitter power before wiring. Do not over-tighten terminal screws. Inspect screw tightness periodically. Prevent metal debris falling into terminal assembly. Do not apply voltage exceeding rated value to terminals.
