ABB AI895 Analog Input Module 3BSC690086R1

Overview

The ABB AI895 Analog Input Module is designed for industrial applications, offering 8 channels for 4-20 mA, single-ended unipolar inputs. It supports direct interfacing with 2-wire and 4-wire transmitters while maintaining HART communication capability. This module is ideal for both Ex (hazardous area) and non-Ex applications when used with the TU890 and TU891 Compact MTU.

Technical Specifications

• Brand: ABB
• Model: AI895
• Part Number: 3BSC690086R1
• Signal Type: 4…20 mA, Unipolar, Single-ended
• Channels: 8
• Resolution: 12-bit
• HART Communication: Yes
• Temperature Drift: Typ. 100 ppm/°C
• Current Limiting: Built-in current-limited transmitter power
• Input Voltage Drop: 3 V typical (PTC included)
• Overload Protection: Limited to 23 mA in overload conditions
• Input Filter (rise time 0-90%): 20 ms
• Rated Insulation Voltage: 50 V
• Power Consumption: 4.75 W
• Current Consumption:
  • +5V Modulebus: Typ. 130 mA
  • +24V External: Typ. 270 mA, Max. <370 mA
• Dielectric Test Voltage: 500 V a.c.
• Environmental Operating Temperature: 0 to +55 °C (32 to 131 °F)
• Humidity: 5% to 95%, non-condensing
• Hazardous Location Certification: ATEX/IECEx Zone 2, Div 2/Zone 2, Ex certified
• Marine Certification: ABS, BV, DNV, LR
• Dimensions:
  • Width: 45 mm (1.77”)
  • Height: 119 mm (4.7”)
  • Depth: 102 mm (4.01”), 111 mm (4.37”) including connector
• Weight: 0.2 kg (0.44 lbs.)

FAQ

Q1: Can the AI895 module interface with 4-wire transmitters?
Yes, with a specific connection, the AI895 can interface with 4-wire transmitters while maintaining HART communication.

Q2: What is the input voltage drop for the current input?
The input voltage drop is typically 3 V, including PTC protection.

Q3: What are the environmental certifications for the AI895?
The module is certified for ATEX/IECEx Zone 2, and it is suitable for marine applications with certifications from ABS, BV, DNV, LR.

Q4: How many channels does the AI895 support?
The AI895 module features 8 channels for 4…20 mA signals.

For more detailed information, please check official datasheet: Product-AI895