Technical Specifications Operating Supply Voltage: 24 VDC ±10% Number of Input Channels: 8 independent configurable channels Supported Input Types: Thermocouple B, E, J, K, N, R, S, T; millivolt ‑100 mV ~ +100 mV A/D Resolution: 16‑bit Cold‑Junction Compensation: Built‑in on‑module cold‑junction sensor Isolation: Group galvanic isolation Operating Temperature: 0 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mounting Type: S800 rack plug‑in Protection Class: IP20 Certifications: CE
Functional Features Accepts multi‑type thermocouple and millivolt weak analog signals. On‑module integrated cold‑junction compensation for thermocouple measurement. Detects sensor loop open‑circuit and short‑circuit fault conditions. Group‑wise galvanic isolation isolates field‑side interference from control system. Front‑panel LED indicators display power, running and module fault status. Detachable supporting terminal unit facilitates field wiring and module replacement. All channel parameters configured via Control Builder M software. Full mechanical compatibility with S800 series rack hardware.
Application Scenarios Petrochemical plant furnace and high‑temperature equipment temperature monitoring. Power plant boiler flue‑gas and heating‑surface temperature measurement cabinets. Metallurgical industry high‑temperature process parameter acquisition. AC800M DCS system maintenance and spare‑part replacement projects.
Installation Requirements Insert AI930 module into designated S800 rack slot and install matched terminal unit. Complete cabinet protective earthing following official grounding specifications. Thermocouple field wiring must adopt matched compensation cables. Separate compensation cables and high‑power power cables. Confirm thermocouple type matches software channel configuration before power‑on. Reserve cabinet ventilation space to avoid heat accumulation around the module. Tighten terminal unit screws to manufacturer‑recommended torque values. Keep ambient operating environment within rated temperature and humidity ranges without condensation.
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