IMASI03 Bailey Analog Input Slave Module, China IMASI03 Bailey Analog Input Slave Module Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	IMASI03
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	IMASI03
Description	Universal Analog Input Slave Module
Dimension	3.6x31x17.7 cm
Weight	0.64 kg
Power Consumption	+5 VDC: 300 mA typical, 450 mA max; +15 VDC: 130 mA typical, 150 mA max; -15 VDC: 35 mA typical, 50 mA max
Analog Input Channels	16 independently configurable channels
Thermocouple Types	Type E, J, K, L, N (14 AWG), N (28 AWG), R, S, T, U; Chinese type E and S
RTD Types	100 Ω platinum (U.S. Lab, U.S. Industrial, European), 120 Ω nickel, 10 Ω copper, Chinese 53 Ω copper
Millivolt Input Range	-100 mV to +100 mV, 0 to 100 mV
High Level Voltage Input	1-5 VDC, 0-5 VDC, 0-10 VDC, -10 VDC to +10 VDC (user configurable within range)
Current Input	4-20 mA (system or externally powered)
High Level Voltage Accuracy	Add 0.025% for 4-20 mA inputs; conditions: 25°C, nominal supply, zero lead resistance, FSR = 20 V
Low Level Voltage Accuracy	Conditions: 25°C, nominal supply, zero lead resistance, FSR = 200 mV
Resistance Accuracy	Conditions: 25°C, nominal supply, zero lead resistance, FSR = 500 Ω
Cold Junction Accuracy	±0.5°C
Software Linearization Accuracy	±0.1°C
Temperature Effect	±0.003% of FSR per °C (0 to 70°C max)
Power Supply Effect	±0.003% of FSR per V (±15 V supply range)
Input Settling Time	0.5 s to within 1% after full-scale step change
Input Impedance	≥10 MΩ
Operating Temperature	0 to 70°C (32 to 158°F)
Relative Humidity	5% to 95% up to 55°C; 5% to 45% at 70°C (non-condensing)

Description

The Universal Analog Input Slave Module (IMASI03) interfaces field inputs to the multi-function processor module. The IMASI03 supplies 16 separate process field signals into the INFI 90® Process Management System. These analog inputs are used by the Multi-Function Processor Module (MFP) to monitor and control a process. Universal analog input slave modules provide an isolated thermocouple, millivolt, RTD, and high level analog signal interface for the Multi-Function Processor Module with variable analog-to-digital conversion resolution up to a maximum of 24 bits. This instruction explains the slave module features, specifications and operation. It details the procedures to set up and install an IMASI03 module, and explains status indicators that help in system test and diagnosis. System engineers or technicians using the IMASI03 should read and understand this instruction before installing and operating the slave module. In addition, a complete understanding of the INFI 90 system is beneficial to the user.

Applications

Thermal Power Generation Facilities: Deployed in boiler and turbine control systems to acquire analog temperature, pressure, and flow signals from critical plant components. The ABB IMASI03 delivers accurate real-time data for load regulation, temperature monitoring, and safety interlocking, supporting efficient and compliant power plant operation.

Oil & Gas Refining & Processing: Used in distillation columns, reactor units, and pipeline monitoring systems to capture analog inputs from temperature transmitters, pressure gauges, and flow meters. Its robust isolation and signal conditioning capabilities maintain data integrity in harsh, high-interference refinery environments, supporting safe and efficient hydrocarbon processing.

Chemical Processing Plants: Integrated into continuous process control systems for monitoring pH levels, reaction temperatures, and liquid flow rates in batch and continuous production lines. The module’s universal input support and high accuracy enable precise process regulation, minimizing product waste and ensuring adherence to strict chemical manufacturing specifications.

Diagnostics

1.Diagnostics Run on Reset

The IMASI03 performs built-in tests on power-up and on reset to check the operation of the module. These tests include:

• PROM checksum verification.

• NVRAM checksum verification.

• DPRAM/SRAM verification.

• Processor instruction set tests.

• Timer test.

2.Diagnostics Run During Normal Operation

During normal operation, the IMASI03 verifies the checksum of the PROM and nonvolatile RAM. Watchdog timers safeguard against an A/D converter failure which would halt input scanning. Input circuits are monitored for open circuits. Any errors are reported to the master MFP through the slave module status. Certain failures detected by these diagnostics may result in halting the slave.

Competitive Advantage

Multi-Signal Compatibility: Supports thermocouple, RTD, millivolt, voltage, and 4-20mA inputs on a single module, eliminating the need for multiple dedicated I/O cards and simplifying system hardware design. This flexibility reduces inventory costs and streamlines retrofits for existing INFI 90 setups, ensuring adaptability to evolving process measurement requirements.

High-Resolution Programmable Conversion: Offers 16–24 bit adjustable A/D resolution to balance measurement precision and conversion speed, delivering industry-leading accuracy for critical process variables. The high-resolution capability minimizes measurement error, supporting tight process control and compliance with industrial quality and regulatory standards.

Channel Isolation & Fault Detection: Full channel-to-channel electrical isolation prevents ground loops and signal interference, while built-in open input detection alerts operators to disconnected field wiring or faulty sensors. This feature boosts system uptime by enabling rapid troubleshooting and reducing unplanned downtime from undetected signal faults.

Automatic Calibration & Drift Compensation: Performs self-calibration during operation to counteract component aging and temperature drift, eliminating manual calibration tasks and maintaining long-term measurement stability. This reduces maintenance labor and ensures consistent performance across fluctuating industrial operating conditions.

FAQ

Question: What are the main functions of the ABB IMASI03?

Answer: The ABB IMASI03 conditions, isolates, and converts up to 16 analog field signals into digital data for the INFI 90 DCS multi-function processor, supporting diverse input types and enabling accurate, reliable process variable monitoring and control.

Question: Is the ABB IMASI03 compatible with existing INFI 90 DCS systems?

Answer: Yes, the IMASI03 is fully backward-compatible with standard ABB Bailey INFI 90 systems, integrates seamlessly with MFP modules (IMMFP01/02/03) via the slave expander bus, and fits standard INFI 90 mounting racks without system modification.

Question: Does the IMASI03 require ongoing manual calibration?

Answer: No, the ABB IMASI03 features automatic on-board calibration and drift compensation, eliminating routine manual calibration and sustaining measurement accuracy throughout its operational life.