AI845 3BSE023675R1
Product Name
ABB AI845 3BSE023675R1 8-Channel High-Precision Analog Input Module for AC 800M Controllers(The naming follows ABB’s industrial control conventions:
- “AI845”: Identifies the “Analog Input” series with 8 channels, optimized for high-accuracy signal acquisition.
- “3BSE023675R1”: Unique ABB part number specifying the base variant with universal input support, cold-junction compensation (CJC), and compatibility with AC 800M controllers.
This module acts as a “precision signal translator” in process control systems, converting analog sensor data (temperature, pressure, flow) into digital signals that the AC 800M controller can process—critical for maintaining stable industrial operations.)
2. Product Description
The AI845 3BSE023675R1 is an industrial-grade analog input module engineered by ABB to address core challenges in process monitoring: signal noise interference, limited sensor compatibility, and inaccurate measurements in harsh conditions. As a key component of ABB’s AC 800M-based automation systems, it integrates 8 independent universal analog input channels, advanced signal conditioning, and industrial-grade isolation—making it indispensable for:
- Chemical & Petrochemical: Monitoring reactor pressure (via 4–20mA transmitters) and catalyst temperature (via RTDs/thermocouples).
- Pharmaceutical: Ensuring precise control of batch mixer speed (0–10V signals) and sterile room humidity (analog sensor data).
- Energy & Utilities: Tracking steam flow rates (differential pressure sensors) and turbine bearing temperatures in power plants.
Key Functional Advantages
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Universal Input Compatibility for Diverse SensorsEach of the 8 channels supports multiple analog signal types without hardware reconfiguration:
- Current: 4–20mA (2-wire/4-wire transmitters), 0–20mA.
- Voltage: 0–10V, ±10V, 0–5V.
- Temperature: RTDs (Pt100, Pt1000), thermocouples (J, K, T, E, R, S, B).
This eliminates the need for separate modules for different sensors, r



