Technical Specifications 24VDC power supply, multi-channel 4-20mA analog current input. Operating temperature: -40℃ ~ +70℃, built-in low-pass filter.
Functional Features Current signal sampling, A/D conversion, open-loop fault diagnosis, digital filtering, measurement data upload.
Application Scenarios Pressure, flow, level and temperature transmitter signal acquisition for prime mover and generator control.
Performance Parameters High conversion resolution, low temperature drift, good common-mode interference rejection.
Structural Characteristics Rack pluggable module, independent LED status indicator for each analog channel.
Working Principle Field 4-20mA signals enter the module, pass through signal conditioning and A/D conversion, and the converted digital data is transmitted to the main processor via the backplane bus.
Installation Requirements Shielded twisted-pair wiring is required for analog loops, keep away from variable frequency power cables.
Usage Notes Calibrate zero and span for each channel during commissioning, inspect transmitter wiring periodically.
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