ABB Bailey IMASI13 Analog Input Module

The ABB Bailey IMASI13 processes analog signals from field sensors with high accuracy. This module converts 4-20 mA loops into digital data for the controller. It weighs approximately 0.5 kg and fits standard Bailey rack slots. Its dimensions measure 25.4 cm in length, 12.7 cm in width, and 3.2 cm in height.

Technical Specifications & Hardware Details

The IMASI13 provides eight differential analog input channels. Each channel includes screw-type terminals for secure field wiring. A single front-face LED indicates the module’s operational status. This unit stores no energy internally because it lacks batteries or supercapacitors.

Parameter	Specification
Product Model	IMASI13
Weight	0.5 kg (1.1 lbs)
Dimensions (L×W×H)	25.4 cm × 12.7 cm × 3.2 cm
Number of Components	3 main assemblies (PCB, faceplate, backplane connector)
Input Channels	8 differential analog inputs
Input Range	4-20 mA (configurable)
Energy Storage	None (battery-free design)
Backplane Interface	Single 48-pin connector

Installation and System Integration

You can mount this module into any Bailey INFI 90 open slot. Moreover, its passive design generates very little heat during operation. The IMASI13 connects directly to field termination units via ribbon cables. For reliable readings, use shielded wiring for all analog inputs.

Operational Reliability

The absence of internal batteries eliminates routine maintenance tasks. Furthermore, this module operates within a 0°C to 60°C temperature range. It withstands 5g vibration from 10 to 55 Hz. Consequently, the IMASI13 provides stable signal conversion for years. It draws only 180 mA from the 5V backplane supply.