ABB Bailey IMASM04 Analog Module

This analog module processes field sensor signals for ABB Bailey control systems. You will find the ABB Bailey IMASM04 Analog Module converting thermocouple and RTD readings into digital values. Its versatile input configuration supports multiple sensor types within a single unit.

Technical Specifications

This module features eight universal analog inputs for flexible field connections. You can also locate two cold junction compensation sensors for thermocouple accuracy. The ABB Bailey IMASM04 Analog Module stores no battery energy for configuration retention. Instead, it uses non-volatile EEPROM for all calibration data storage. Therefore, this module never requires any routine battery replacement.

Parameter	Specification
Full Product Name	ABB Bailey IMASM04 Analog Module
Series	INFI 90 / Bailey
Module Type	Universal Analog Input
Weight	0.44 kg
Length	25.5 cm
Width	3.2 cm (single-wide)
Analog Inputs	8 (universal)
Supported Sensors	TC, RTD, mA, VDC
Resolution	16-bit
Cold Junction Sensors	2
Update Rate	250 ms per channel
Bus Connector	1 x 24-pin
Energy Storage	EEPROM only (no battery)

Signal Conditioning Details

The ABB Bailey IMASM04 Analog Module draws its operating power from the INFI 90 bus backplane. You can configure each channel independently for different sensor types using software. The module automatically linearizes thermocouple signals using internal lookup tables. Moreover, the onboard cold junction sensors compensate for temperature variations at the terminal block. This design delivers accurate temperature readings within ±0.1 percent of span.

Mechanical Integration and Mounting

You must insert the ABB Bailey IMASM04 Analog Module carefully into any standard INFI 90 slot. After full insertion, secure the module using the top and bottom metal retaining clips. The module measures exactly 25.5 centimeters in length and 3.2 centimeters in width. Its total weight reaches approximately 0.44 kilograms for straightforward handling. Furthermore, the module includes a front extraction handle for easy removal during maintenance.

Environmental and Storage Guidelines

You should store this ABB Bailey IMASM04 Analog Module in an anti-static bag away from moisture. The module operates reliably between 0°C and +60°C ambient temperature. Likewise, keep the unit away from conductive dust or corrosive atmospheres. Because the module uses solid-state components only, it requires zero regular maintenance.