Technical Specifications Operating Supply Voltage: 24 VDC ±10% Power Consumption: Typical 68 mA, maximum 76 mA Number of Input Channels: 8 independent RTD input channels Supported Sensor Types: Pt100, Pt1000, Ni120, Cu53 Wiring Modes: 2‑wire, 3‑wire, 4‑wire A/D Resolution: 16‑bit with polarity Full‑module Update Time: 450 ms for all 8 channels Calibration Mode: Automatic on‑board calibration Isolation Type: Group galvanic isolation Operating Temperature: 0 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mounting Form: Rack plug‑in installation, horizontal or vertical rack arrangement Protection Class: IP20 Certifications: CE
Functional Features Supports multi‑type RTD temperature sensor and multiple wiring configurations. Automatic hardware calibration removes manual calibration work for field commissioning. Built‑in open‑circuit and short‑circuit diagnostic function for sensor loops. Group‑wise galvanic isolation protects control system from field‑side electrical disturbance. Transmits temperature measurement value and diagnostic status to DCS via backplane bus. Front‑panel LED indicators display module power, running and fault alarm status. Software‑selectable input filter adapts to 50 Hz or 60 Hz power‑frequency interference environment. Fully mechanical and electrical matching with Symphony Plus SD‑series rack base unit.
Application Scenarios Power plant boiler, turbine temperature monitoring cabinet. Chemical process industry multi‑point temperature measurement system. Petrochemical plant furnace and pipeline temperature acquisition. Symphony Plus DCS system spare‑part overhaul and replacement project.Installation Requirements Insert AI03 module into matched Symphony Plus SD‑series rack designated slot. Install supporting base unit with CJC cold‑junction compensation function. Complete cabinet protective earth connection strictly comply with system grounding specification. RTD sensor wiring adopts shielded twisted‑pair cables. Separate high‑power power cables and signal cables routing.
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