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  • 3BSE008544R1 -3
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AI820

ABB AI820 High Precision Analog Module 14-Bit Resolution

In stock (52 units), ready to be shipped

  • Manufacturer: ABB

  • Product No.: AI820

  • Product Type: Analog Input Module

  • Product Origin: SE

  • Payment:T/T, Western Union

  • Weight: 250g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
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  • 24/7 Support
  • Quality Assurance

Description

ABB AI820 Analog Input Module (3BSE008544R1)

High-precision 4-channel differential input module for S800 systems, supporting bipolar voltage and current signals. Features 14-bit resolution with sign for accurate measurement of positive and negative values in industrial applications.

Core Features & Benefits

  • Bipolar Differential Inputs: Supports -20...+20 mA, -10...+10 V ranges for bidirectional signal measurement
  • High Resolution: 14-bit plus sign for precise analog-to-digital conversion
  • Built-in Transmitter Supply: Distributes power to external 2-wire transmitters
  • Robust Protection: Withstands 30V DC accidental connections with high-power current sense resistors

Technical Specifications

  • Article Number: 3BSE008544R1 AI820
  • Channels: 4 differential bipolar inputs
  • Resolution: 14-bit plus sign
  • Accuracy: Max. 0.1% error
  • Input Impedance: 200 kΩ (voltage mode, common), 800 kΩ (voltage mode, normal)
  • Power Consumption: 1.7W (80mA +5V, 70mA +24V external)
  • Operating Temperature: 0 to +55°C (40°C for vertical mounting)
  • Isolation: Group isolated from ground (50V RIV)

Compatible Hardware

Designed for use with MTU units: TU810, TU812, TU814, TU830, TU833

Typical Applications

  • Bidirectional process measurement (flow, position)
  • High-precision analog signal acquisition
  • Differential signal measurement in noisy environments
  • Industrial control systems requiring bipolar ranges

Frequently Asked Questions

What is the advantage of bipolar inputs?

Bipolar inputs can measure both positive and negative signals, essential for applications like motor position, bidirectional flow, or differential pressure measurements.

How does the transmitter supply work?

The module distributes external transmitter power to each channel, simplifying connection for 2-wire transmitters without additional wiring.

What protection is provided for accidental high voltage?

5W current sense resistors provide temporary protection against accidental 24V connections, safeguarding one channel at a time during wiring errors.

🏷️ Tags: Analog Input Module

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In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.

Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.

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