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ABB IMASI23 Symphony Harmony INFI 90 Universal Analog Input Module

Product Overview

The ABB IMASI23 is a high-performance Universal Analog Input Slave Module designed for the Symphony Harmony and INFI 90 distributed control system (DCS) environments. This module is engineered to interface up to 16 independent analog signals from field instrumentation to the Harmony controller. Its "Universal" architecture allows it to handle a diverse range of inputs—including 4-20 mA current loops, ±10 VDC, thermocouples, and RTDs—on a single hardware platform. By offloading complex A/D conversion, cold junction compensation, and linear correction factors from the main controller, the IMASI23 ensures high-speed, accurate signal acquisition for critical industrial processes.

Technical Specifications

The following specifications define the electrical and functional performance of the IMASI23:

Parameter Specification Details
Model Number IMASI23
Product Family Symphony Harmony / INFI 90
Input Channels 16 Channels (Universal)
Supported Inputs 4–20 mA, ±10 V, 0–5 V, 1–5 V, Thermocouples (all types), mV, RTD
Accuracy ±0.1% of Full Scale
Resolution 15-bit Plus Sign
Isolation Voltage 2000 V RMS (Input to Logic)
CMRR 120 dB @ 60 Hz
Data Transfer I/O Expander Bus (P2 Connector)
Power Consumption 10 W (Typical)
Operating Temp -20 °C to +60 °C (-4 °F to 140 °F)
Weight 0.4 kg (Module) / 1.5 kg (Shipping)
Dimensions 269.24 mm x 360.68 mm x 73.66 mm

 

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