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

Description

The ABB AI820 (3BSE008544R1) is a 4-channel bipolar analog input module for the S800 I/O system. It converts voltage and current signals into precise digital data, with differential inputs that minimize noise and ground loop interference, providing reliable measurements for AC 800M controllers in demanding industrial environments.

Specifications

• Manufacturer: ABB

• Country of Origin: Switzerland

• Model Number: AI820

• Order Number: 3BSE008544R1

• Product Type: Differential Analog Input Module

• Number of Channels: 4 Differential Channels

• Input Ranges: ±10V, ±5V, ±2.5V, 0-20mA, 4-20mA

• Resolution: 14 bits plus sign

• Weight: 0.20 kg

• Input Impedance: >10 Mohm (Voltage), 250 ohm (Current)

• Isolation: Groupwise isolation from ModuleBus and power supply

• Mounting: DIN rail via Module Termination Unit (MTU)

Features

• Differential Input Design: Significantly reduces common-mode interference and ground potential differences to ensure signal purity.

• High-Resolution Accuracy: Offers 14-bit resolution, allowing for precise tracking of small process fluctuations in critical control loops.

• Bipolar Signal Support: Capable of measuring both positive and negative voltage signals, providing versatility for specialized sensing equipment.

• Built-in Current Shunt: Easily switchable to current mode via the termination unit, supporting standard 0/4-20mA transmitter loops.

• Advanced Module Diagnostics: Performs continuous self-checks on internal hardware and monitors field wiring for over-range and under-range conditions.

• Industrial Noise Filtering: Employs sophisticated digital filtering to suppress power line frequency interference (50/60 Hz) and high-frequency noise.