Overview

The ABB AO845 3BSE023676R1 Current Amplifier Circuit is a sophisticated analog output solution specifically designed for critical industrial automation applications. This versatile module provides eight independent unipolar analog output channels, making it suitable for both single and redundant system configurations to accommodate diverse operational needs. Its robust design ensures reliable performance in demanding environments, where signal integrity is crucial.

Functional Highlights

One of the standout features of the AO845 is its advanced diagnostic capabilities, which include comprehensive self-monitoring functions that operate on a cyclical basis. The system actively detects external channel errors caused by power supply voltage drops or deviations in output currents exceeding 1 mA, indicating potential open circuit conditions. Such proactive diagnostics enable maintenance teams to address issues before they escalate, ultimately enhancing system reliability.

The AO845 module supports 4-20mA HART communication, ensuring compatibility with modern industrial communication standards. It offers a resolution of 12 bits and an accuracy of 0.1%, guaranteeing precise signal output. Additionally, it supports a maximum load resistance of 750 ohms and provides rated isolation of 50V, which is essential for safe operation in industrial settings.

Moreover, compatibility with a range of termination units, including TU810, TU812, TU814, TU830, TU842, and TU843, allows for flexible integration into existing systems. This module's internal error detection systems monitor output circuit performance, ensuring accurate current delivery. In redundancy configurations, the ModuleBus master can command the module to enter an error state if necessary, which maintains overall system integrity.

Technical Data

• Model Number: AO845 3BSE023676R1
• Module Type: Current Amplifier Circuit
• Manufacturer: ABB
• Condition: Brand New
• Weight: 1.22 kg
• Dimensions: 24 x 19 x 5.3 cm
• HS CODE: 8537101190
• Product Origin: Sweden
• System Type: DCS (Distributed Control System)
• Status: Active
• Output Channels: 8 independent channels
• Output Type: Unipolar analog
• Output Range: 4-20 mA
• Communication Capability: HART
• Resolution: 12 bits
• Accuracy: 0.1%
• Max Load Resistance: 750 ohms
• Rated Isolation Voltage: 50 V

Typical Applications

The ABB AO845 Current Amplifier Circuit is suitable for:

• Industrial automation systems requiring reliable analog output signals
• Continuous process operations where signal integrity is critical
• Applications in chemical processing, power generation, and water treatment
• Systems needing robust diagnostics for proactive maintenance

FAQ

1. What is the weight of the AO845 Current Amplifier Circuit?
   The AO845 module weighs 1.22 kg.

2. What are the dimensions of this module?
   Its dimensions are 24 x 19 x 5.3 cm.

3. How many output channels does the AO845 have?
   The module has 8 independent unipolar output channels.

4. What communication capability does the AO845 support?
   It supports 4-20 mA HART communication.

5. What is the maximum load resistance for the AO845?
   The module supports a maximum load resistance of 750 ohms.