AI820 3BSE008544R1 Analog Input Module, 4-Channel | ABB S800 I/O

Overview

The ABB AI820 3BSE008544R1 is a 4-channel bipolar differential analog input module designed for S800 I/O systems to process voltage and current signals from field transmitters through individually galvanic isolated channels.

Technical Specifications

• Product Type: Analog Input Module
• Part Number: 3BSE008544R1
• Model: AI820
• Mechanics: S800
• Number of Channels: 4
• Type of Input: Bipolar differential
• Measurement Ranges (Current): -20 to +20 mA, 0 to 20 mA, 4 to 20 mA
• Measurement Ranges (Voltage): -10 to +10 V, 0 to 10 V, 2 to 10 V, -5 to +5 V, 0 to 5 V, 1 to 5 V
• Resolution: 14 bit plus sign
• Input Impedance (Voltage Input): 200 kΩ (Common mode), 800 kΩ (Normal mode)
• Input Impedance (Current Input): 250 Ω
• Isolation: Individually galvanic isolated channels (Groupwise isolated from ground)
• Over/Under Range: ±15%
• Maximum Error: 0.1%
• Temperature Drift (Current): Max. 50 ppm/°C
• Temperature Drift (Voltage): Max. 70 ppm/°C
• Input Filter (Rise Time): 40 ms
• Update Cycle Time (All Four Channels): < 26 ms
• Maximum Field Cable Length: 600 meters
• Max. Differential d.c. Input (Fault): 30 V
• Common Mode Voltage Input: 50 V d.c.
• CMRR (50 Hz, 60 Hz): 80 dB
• NMRR (50 Hz, 60 Hz): 33 dB
• HART Communication Compatibility: Yes (Withstand)
• SOE: No
• Redundancy: No
• High Integrity: No
• Intrinsic Safety: No
• Voltage Supervision: Internal process supply
• Current Consumption +5 V (Modulebus): 80 mA
• Current Consumption +24 V (Modulebus): 70 mA
• Power Dissipation: 1.7 W
• Rated Insulation Voltage: 50 V
• Dielectric Test Voltage: 500 V a.c.
• Compatible Module Termination Units (MTUs): TU810, TU812, TU814, TU830, TU833
• MTU Keying Code: BB
• Width: 45 mm
• Depth: 102 mm (111 mm including connector)
• Height: 119 mm
• Weight: 0.3 kg

Key Features

• Provides 4 differential channels independently configurable for multiple bipolar current and voltage industrial ranges.
• Features individually galvanic isolated channels to deliver high-precision signal integrity and noise immunity.
• Delivers high-resolution signal processing with a 14-bit plus sign analog-to-digital architecture.
• Includes input shunt resistors built to withstand a maximum accidental normal mode voltage of up to 30 V d.c.
• Maintains operational accuracy while successfully withstanding high-frequency HART communication over process signals.

Installation Notes

• Mount the module onto a compatible S800 Module Termination Unit (MTU) such as TU810, TU812, TU814, TU830, or TU833.
• Connect field transmitter wiring to the allocated MTU terminal blocks according to bipolar differential configuration standards.
• Ensure proper functional grounding of the MTU rail layout to fully meet the 500 V a.c. dielectric test insulation specifications.
• Verify the MTU keying code is properly set to BB before locking the module onto the terminal base to prevent hardware mismatches.