ABB Bailey IMRAI12 Non-Isolated Input Module

The ABB Bailey IMRAI12 is a high-performance non-isolated analog input module engineered to meet the rigorous demands of industrial automation and control systems. As part of ABB’s renowned Infi 90 series, the IMRAI12 is designed for accurate signal processing in environments where isolation is not a critical requirement. It is commonly used in process control systems to monitor and interface analog inputs such as temperature sensors, pressure transducers, and other signal-generating devices.

The IMRAI12 integrates seamlessly with ABB Bailey’s DCS (Distributed Control System) architecture, offering robust compatibility and reliable long-term performance. With its 12-channel input design, it enables high-density signal acquisition while maintaining system integrity and low latency.

Product Specifications

Applications

The ABB IMRAI12 module is widely used in industrial environments requiring reliable, non-isolated signal acquisition. Key application areas include:

• Petrochemical Plants – for analog sensor readings like temperature, pressure, and flow rate.

• Power Generation – for interfacing analog data to control loops in thermal and hydroelectric plants.

• Manufacturing Automation – integrated into SCADA and DCS systems for monitoring machine conditions.

• Water Treatment Facilities – monitoring water quality parameters such as pH, turbidity, and conductivity.

• Pharmaceuticals & Food Processing – tracking analog process conditions where real-time monitoring is crucial.

Product Advantages

• High Channel Density: Supports 12 analog inputs in a compact module, reducing space requirements.

• Reliable Signal Processing: Equipped with high-precision A/D converters ensuring accurate data capture.

• Seamless Integration: Designed to work directly with ABB Bailey’s Infi 90 systems.

• Cost-Effective: Non-isolated design is economical in applications where electrical isolation is unnecessary.

• Durable Build: Robust industrial-grade construction suitable for demanding environments.

• Long Product Lifecycle: ABB’s support and backward compatibility with legacy systems ensure longevity.

Frequently Asked Questions (FAQ)

1. What types of input signals are supported by the IMRAI12?

   It supports both voltage (0–5 VDC) and current (4–20 mA) input signals.

2. Is the IMRAI12 suitable for isolated applications?

   No, it is a non-isolated module, and all input channels share a common ground.

3. Can this module be used in hazardous environments?

   While the module itself is not intrinsically safe, it can be used in conjunction with certified barriers.

4. How many channels does the IMRAI12 support?

   It provides 12 analog input channels.

5. What is the resolution of its analog-to-digital conversion?

   The module offers a 12-bit resolution.

6. Does this module require external power for input devices?

   No, it reads from powered transmitters; no excitation power is supplied.

7. Is this module hot-swappable?

   It is not recommended to hot-swap; always power down before module replacement.

8. What are the typical installation options for IMRAI12?

   It can be installed on DIN rails or into ABB Bailey system racks.

9. Can the input range be configured per channel?

   Yes, voltage or current input can be configured per individual channel.

10. What diagnostic capabilities are available?

    The module provides limited self-diagnostics, mainly error and signal fault detection.