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ABB AI04｜Analog Input Module｜
AI04
1. Channel and signal types
Channel: 16 independent inputs, isolated in one group for the entire module (1500V AC/1min withstand voltage)
ADC architecture: 4 16 bit polarized ADCs, each responsible for 4 channels
Supports all models of thermocouples:
B、E、J、K、L、N、R、S、T、U， National standard E/S thermocouple
MV range software options: 0~100mV, -100~+100mV
Cold end compensation CJC three modes (base realization):
Built in RTD automatic compensation in the base (most commonly used)
External RTD compensation
DCS external fixed value compensation
2. Accuracy, Scanning, and Diagnosis
A/D resolution: 16 bits with polarity
Measurement accuracy: ± 0.05% FSR (full range 200mV), SD series AI card has the highest accuracy level
Full 16 channel refresh cycle: 300ms
Built in automatic calibration, no need for on-site manual calibration
Wire breakage diagnosis: Quickly report an alarm within 5 seconds of thermocouple breaking
Low noise circuit, suitable for small thermoelectric potential signals in furnaces and high-temperature furnace walls
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