Technical Specifications 24VDC power supply, multi-channel 4-20mA current input. Operating temperature: -40℃ ~ +70℃, built-in signal filtering circuit.
Functional Features Analog current signal sampling, A/D conversion, open-loop fault detection, digital filtering, measurement data upload.
Application Scenarios Pressure, flow, level and temperature transmitter signal acquisition for generator and prime mover control systems.
Performance Parameters High conversion resolution, low measurement drift, good common-mode interference rejection.
Structural Characteristics Rack pluggable module, independent LED status indicator for each analog channel.
Working Principle The module receives 4-20mA current signals from field transmitters, converts analog signals into digital data through internal A/D converter, and sends valid measurement values to the main controller via backplane bus.
Installation Requirements Use shielded twisted-pair cables for analog wiring, separate signal cables from high-power AC cables.
Usage Notes Calibrate zero and span of each channel after installation, inspect wiring integrity periodically.
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