Technical Specifications Channels:8 Supported Sensor:J, K, T, E type thermocouple Resolution:16‑bit Isolation Voltage:1500V RMS Backplane Power Consumption:160mA @5VDC Operating Temperature:0℃～+60℃ Storage Temperature:-40℃～+85℃ Relative Humidity:5%-95%, non‑condensing Certifications:CE, UL, cUL
Functional Features Multi‑type thermocouple support, automatic cold‑junction compensation, high‑resolution A/D conversion, channel LED status, digital temperature data upload to CPU.
Application Scenarios Furnace temperature monitoring, heat‑treatment equipment, kiln control, industrial oven, multi‑point temperature acquisition.
Performance Parameters Typical measurement accuracy ±0.2% of full scale Single‑channel anomaly does not affect other channels Designed for continuous temperature‑monitoring operation Shock & vibration:Comply with IEC 60068
Structural Characteristics Standard plug‑in module for Series 90‑30 rack Front‑panel grouped LED indicators Front‑mount thermocouple signal terminal block Backplane gold‑finger bus contact Internal cold‑junction sensor and A/D conversion circuit Mechanical locking latch
Working Principle Thermocouple millivolt signal accesses module front terminals. Internal cold‑junction compensation circuit compensates reference‑junction temperature error. A/D unit converts analog millivolt signal to digital temperature value. Transmit processed temperature data to CPU via backplane bus.
Installation Requirements Insert module into suitable rack slot. Implement cabinet protective grounding. Use dedicated thermocouple compensation cable for field wiring. Separate thermocouple weak‑signal cables from high‑voltage power cables. Power‑off rack for module replacement, hot‑swap not supported. Avoid local hot‑spot heating near module position.
Usage Notes Apply matched compensation wire according to thermocouple type. Prevent signal cable from high‑frequency electromagnetic interference. Configure sensor type via GE programming software. Check LED status periodically. Forbid on‑site disassembly. Avoid corrosive gas, liquid splash and oil mist.
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