ABB DAI 03 Analog Input Module

Product Overview

The ABB DAI 03 (0369631MR) is a high-density analog interface for Bailey INFI 90 and Network 90 systems. It bridges field instrumentation and DCS logic by converting analog signals like temperature and pressure into high-resolution digital data. This module ensures accurate process monitoring and reliable control loop performance in demanding industrial environments.

Technical Specifications

• Manufacturer: ABB Bailey Controls

• Model Designation: DAI 03

• Product ID / Part Number: 0369631MR

• Module Type: Analog Input Interface

• System Architecture: Fully compatible with INFI 90 and Network 90 DCS

• Signal Input Support: Standard industrial ranges including 4-20 mA and 1-5 VDC

• Conversion Accuracy: High-precision A/D conversion with EMI filtering

• Safety Isolation: High-quality optical isolation for backplane protection

• Diagnostic Features: Continuous self-monitoring for channel and module health

• Physical Weight: 3.0 kg

Industrial Applications and Benefits

The DAI 03 (0369631MR) is a critical component in power generation and chemical processing where operational reliability is mandatory. Its robust hardware design allows for high signal fidelity even in areas with significant electrical noise. The architecture is specifically optimized for low latency, enabling the control system to respond to rapid process fluctuations in real-time. This is particularly vital for steam turbine regulation and hazardous material handling where precise, instantaneous data acquisition is required to maintain plant safety and efficiency.