ABB|AI845 3BSD023675R1|Analog Input Module

ABB AI845 Analog Input Module

The ABB AI845 (3BSE023675R1) is an 8-channel analog input module designed for voltage or current inputs, supporting HART communication and offering single or redundant operation.

Description
This module provides precise measurement for 0...20 mA, 4...20 mA, 0...5 V, or 1...5 V signals with built-in diagnostics and HART pass-through capability.

Features

• Supports 0...20 mA, 4...20 mA, 0...5 V, or 1...5 V d.c. inputs
• Single or redundant operation
• 12-bit resolution
• Integrated HART support
• Advanced on-board diagnostics

Technical Specifications

• Channels: 8 single-ended unipolar inputs
• Input types: Voltage or current depending on MTU used
• Resolution: 12 bits
• Input impedance:
  • Voltage: >10 MΩ
  • Current: 250 Ω
• Isolation: Groupwise isolated from ground
• Overvoltage protection: At least 11 V d.c. non-destructive
• Error: Max. 0.1%
• Temperature drift: Max. 50 ppm/°C
• Update cycle time: 10 ms
• Current limiting: Built-in per channel
• Maximum field cable length: 600 meters
• NMRR: >40 dB at 50/60 Hz
• Rated insulation voltage: 50 V
• Dielectric test voltage: 500 V AC
• Power dissipation: 3.5 W
• Current consumption:
  • +5 V Modulebus: 100 mA
  • +24 V Modulebus: 50 mA
  • +24 V external: Max. 265 mA
• Operating temperature: 0 to +55 °C
• Storage temperature: -40 to +70 °C
• Humidity: 5–95%, non-condensing
• Dimensions:
  • Width: 45 mm
  • Depth: 102 mm / 111 mm with connector
  • Height: 119 mm
• Weight: 0.23 kg