ABB|AI845-EA 3BSE023675R2|Analog Input Module

ABB AI845-EA 3BSE023675R2 Analog Input Module

Description
ABB AI845-EA is a high-precision 8-channel analog input module supporting voltage or current signals with HART pass-through and optional redundancy.

Features

• 8 configurable channels for 0–20 mA, 4–20 mA, 0–5 V, or 1–5 V inputs
• Supports single or redundant operation
• Built-in HART communication pass-through
• High input impedance: 10 MΩ (voltage), 250 Ω (current)
• Onboard diagnostics with fault and warning LEDs
• Current-limited transmitter power per channel

Technical Specifications

• Type: Analog Input Module
• Channels: 8 (groupwise isolated from ground)
• Resolution: 12-bit
• Input Range:
  • Current: 0–20 mA, 4–20 mA
  • Voltage: 0–5 V, 1–5 V
• Overvoltage Protection: Up to 11 V DC non-destructive
• Isolation Voltage: 50 V rated, 500 V dielectric test
• Accuracy: Max error 0.1%, temperature drift 50 ppm/°C
• Update Cycle Time: 10 ms
• Filter Response Time: 290 ms rise time (0–90%)
• Noise Rejection (NMRR): >40 dB at 50/60 Hz
• Max Cable Length: 600 meters
• Power Dissipation: 3.5 W
• Current Draw: 100 mA @ +5 V, 50 mA @ +24 V
• External Supply Load: Up to 265 mA max
• Operating Temp: 0 to +55 °C
• Storage Temp: -40 to +70 °C
• Protection Class: IP20
• Certifications: CE, RoHS, WEEE, UL, ATEX, IECEx, marine approvals
• Dimensions: 45 mm (W) × 102 mm (D) × 119 mm (H)
• Weight: 0.23 kg