Description
Emerson 1C31204G03
Technical Specifications: Nominal power supply: 24 VDC Supported signal type: 4-20mA analog current signal Isolation voltage: 1500 VAC Operating temperature: 0 ℃ to 60 ℃ Storage temperature: -40 ℃ to 85 ℃ Humidity: 5% to 95% non-condensing
Functional Features: Built-in 24V loop power supply for field two-wire transmitters. Independent surge protection for each signal channel. Low-pass filter suppresses high-frequency noise interference. LED power indicator shows normal working status. Reserved test points allow technicians to measure loop current directly on terminal base. Galvanic isolation separates field side and system logic side. It supports hot swap of matched analog input I/O cards.
Application Scenarios: Pressure transmitter signal collection, temperature transmitter signal acquisition, liquid level measurement signal transmission, flow signal collection in refining plant, thermal power plant boiler process parameter monitoring.
Performance Parameters: Signal matching accuracy: ±0.05% full scale Signal bandwidth: DC to 2 kHz Surge withstand capability: 2kV common mode surge Vibration resistance:10 Hz ~150 Hz,0.5g Shock resistance:10g peak,11ms MTBF:218000 hours
Material Composition: Shell: UL94-V0 flame retardant plastic. Terminal screws: nickel-plated brass. PCB substrate: FR4 glass epoxy board. Filter capacitors and surge suppressors are soldered on printed circuit board. Mounting spring clip: stainless steel.
Structural Features: 35mm DIN rail snap installation. Front panel equipped with screw terminals and LED indicator window. Top card slot for analog input I/O card insertion. Channel number marking printed on front shell. Anti-reverse insertion positioning structure prevents mismatched card installation. Ventilation grooves on housing for passive heat dissipation.
Working Principle: Field two-wire transmitter connects to screw terminals on terminal base. The terminal base supplies 24V DC loop power to transmitter. The 4-20mA analog current signal generated by transmitter passes through filter circuit and surge protection circuit, then enters analog input I/O card. The I/O card converts analog current signal into digital value and uploads digital data to Ovation controller.
Installation Requirements: Mount on standard 35mm DIN rail. Leave 25mm clearance above and below module for heat dissipation. Use shielded twisted pair cable for field analog signal wiring. The shield layer implements single-point grounding at cabinet side. Terminal screw torque is controlled between 0.5 N·m and 0.7 N·m. Cut off power supply before wiring operation.
Precautions for Use: Do not short circuit signal terminals. Do not install in environment with conductive dust. Static protection must be adopted during maintenance work. Regularly inspect aging status of field wiring. Replace terminal base immediately if internal circuit damage occurs.
