ABB IMASI03 Bailey Infi 90 Analog Input Slave Module

SKU IMASI03

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12-month warranty
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Manufacturer: ABB
Product No.: IMASI03
Country of origin:Switzerland
Product Type: Analog Input Slave Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1146g
Dimensions: 27.94 cm x 35.56 cm x 5.54 cm
Shipping port: Xiamen
Warranty: 12 months

Description

The Universal Analog Input Slave Module (IMASI03) performs analog input signal processing for up to 16 independently configured channels and sends this digitized data to a Multi-Function Processor module (such as the IMMFP01/02/03) within the INFI 90 Process Management System. The module operates on a single printed circuit board that installs into one slot of an INFI 90 Module Mounting Unit (MMU) and interfaces to the master processor via the parallel synchronous slave expander bus.

By offloading complex input processing tasks—such as factory calibration correction, drift compensation, lead wire resistance adjustment, cold junction compensation, and linear scaling—the IMASI03 reduces processor overhead. Each channel features its own isolation amplifier providing under-range, over-range, and open input detection. Analog-to-digital (A/D) conversion features software-programmable resolution up to 24 bits, enabling highly accurate monitoring for complex process loops.

Features

16 Independent Channels: Supports any mix of thermocouple, millivolt, RTD, high-level voltage, or current signals on a single module.
Variable A/D Resolution: Programmable software-selectable resolution from 16 to 24 bits per channel to balance scanning speed and accuracy.
Automatic Zero/Gain Calibration: Continuous background recalibration corrects for component aging and temperature drift without manual field intervention.
Comprehensive Signal Conditioning: Individual isolation amplifiers per channel deliver 250 VRMS common mode isolation and -110 dB common mode rejection.
Cold Junction Compensation: Includes an on-board cold junction reference on the termination device for thermocouples, with options for remote software-smoothed references.
Lead Wire Resistance Compensation: Automatically adjusts for series resistance in 3-wire RTDs, low-level millivolt, and thermocouple field wires.
Hot-Swappable Design: Can be physically removed or installed in the Module Mounting Unit backplane without disconnecting system power.

Applications

Power generation plant thermal monitoring (thermocouples and RTDs)
Chemical and petrochemical process loop control
High-accuracy low-level millivolt and high-level voltage data acquisition
Industrial current-loop (4-20 mA) field device interfacing

Technical Specifications

Parameter / Specification	Operational / Value Range
Manufacturer	ABB / Bailey Controls
Module Type	Universal Analog Input Slave Module
Number of Channels	16 independent analog inputs
Input Configurations	Thermocouples (E, J, K, L, N, R, S, T, U, Chinese E/S), Millivolt (-100 to +100 mV), 3-Wire RTD (100 Ohm Pt, 120 Ohm Ni, 10 Ohm Cu, Chinese 53 Ohm), High-Level (1-5 VDC, 0-5 VDC, 0-10 VDC, -10 to +10 VDC), Current (4-20 mA)
Programmable Resolution	16, 18, 20, 22, 24 bits
High-Level Accuracy	$\pm0.015\%$ FSR (at 24-bit resolution, $25\text{ degC}$ ambient)
Low-Level Accuracy	$\pm0.025\%$ FSR (at 24-bit resolution, $25\text{ degC}$ ambient)
Resistance Accuracy	$\pm0.05\%$ FSR (at 24-bit resolution, $25\text{ degC}$ ambient)
Common Mode Isolation	250 VRMS (Continuous AC Voltage, Channel-to-Channel and Input-to-Output)
Common Mode Rejection	-110 dB (Minimum at 50/60 Hz)
Normal Mode Rejection	-80 dB (Minimum at 50/60 Hz AC)
Input Impedance	10 MOhm minimum
Input Settling Time	0.5 seconds to within 1% after a full-scale step change
Power Consumption	+5 VDC (typical 300 mA, max 450 mA); +15 VDC (typical 130 mA, max 150 mA); -15 VDC (typical 35 mA, max 50 mA)
Operating Temperature	0 to 70 degC (32 to 158 Fahrenheit)
Relative Humidity	5% to 95% up to 55 degC; 5% to 45% at 70 degC (Non-condensing)
Mounting Placement	Single slot in standard INFI 90 Module Mounting Unit (MMU)
Shipping Weight	1.146 kg (2.5 lb)
Container Size	27.94 cm x 35.56 cm x 5.54 cm

Connections/Interfaces

P1 Power Pin Connections

Connector Pin	Function
1	+5 VDC
2	+5 VDC
3	Power Ground
4	Power Ground
5	+15 VDC
6	-15 VDC
7	+5 VDC Battery
8	Power Fail Interrupt (PFI)
9	Status Output (+)
10	Status Output (-)
11	Master Reset
12	Frame Ground

P2 Expander Bus Connections

Provides a 12-parallel signal synchronous synchronous path interfacing directly with the master Multi-Function Processor via backplane dipshunts.

P3 Input Signal Pin Connections

Interfaces directly with field wiring terminal blocks via termination devices (NTAI06 termination unit or two NIAI05 termination modules).

Installation Guidelines

Electrostatic Mitigation: Always wear a grounded static wrist strap when removing or inserting the module to change DIP switch or configuration jumpers. Keep the module inside its antistatic bag until physical installation.
Address Selection (SW1): Set the binary module address (0 to 63) using contacts 3 through 8 on dipswitch SW1. Contacts 1 and 2 must remain closed (set to zero) for normal execution.
On-Board Jumpers: Configure the pair of jumpers associated with each channel. Place the jumper connector pairs on pins 1-2 for voltage/current signals, or pins 2-3 for 3-wire RTD resistance parameters.
Backplane Dipshunts: Ensure that a 12-position dipshunt is properly seated in the slave expander bus socket on the MMU backplane between the master processor module and the IMASI03. Disconnect power before installing backplane dipshunts.
Physical Seating: Align the printed circuit board with the guide rails of the designated MMU slot. Slide the unit forward firmly until the front panel is completely flush with the frame, then lock it into position by rotating the two captive faceplate latches one-half turn vertically.

Compliance and Certifications

CSA certified for use as process control equipment in ordinary (non-hazardous) locations.
Complies with IEEE-472 Surge Withstand Capability (SWC) tests.

FAQ

Does the module require manual user calibration during routine maintenance?

No. The device features recorded factory calibration data in its nonvolatile memory and performs continuous automatic background recalibration to adjust for temperature drift and component aging during normal operation.

What happens to the channel scan data if a field wire becomes disconnected?

The module features built-in open input detection across all channel configurations. If an open wire or disconnected termination cable is detected, the device reports bad quality status on that channel to the master controller.

Can I mix different input signals like RTDs and thermocouples on the same device?

Yes. Each of the 16 channels is independently programmable via software function codes and physical jumpers, allowing any mix of thermocouple, millivolt, RTD, current, or high-level voltage inputs on a single module.

What is the continuous common mode isolation rating of the input channels?

The module provides a maximum continuous absolute rating of 250 VRMS common mode isolation channel-to-channel and channel-to-ground.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

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TECHNICAL SPECIFICATIONS

Color pattern	Black
Country of origin	Switzerland
Power source	DC Power