Overview

The Yokogawa AST143-S00 is a TC/mV input module designed for precise thermal monitoring and millivolt signal acquisition in demanding industrial environments. It supports up to 16 isolated input channels, each capable of handling thermocouple (TC) or millivolt (mV) signals, making it ideal for applications requiring high signal integrity and fast response times.

Built for safe operation in hazardous areas such as Zone 2/Division 2, the module offers 1500 V AC isolation, ensuring protection against electrical interference and transient faults. Its compact form factor and compatibility with Yokogawa’s DCS systems allow for easy integration into existing control architectures. Additionally, the AST143-S00 offers low signal drift and high-speed data updates, making it ideal for real-time process control.

This module is widely used in industries like chemical processing, power generation, oil & gas, and pharmaceuticals, where precise temperature and voltage measurements are essential for operational safety and efficiency.

Technical Data

Typical Applications

• Chemical and Petrochemical Plants: Monitors reactor temperatures and millivolt signals from process sensors.

• Power Generation Facilities: Acquires temperature data from turbines, boilers, and heat exchangers.

• Pharmaceutical Manufacturing: Ensures precise thermal control in batch and continuous processes.

• Oil & Gas Automation: Interfaces with field sensors in hazardous zones for real-time monitoring.

• Food and Beverage Industry: Tracks temperature profiles in ovens, chillers, and fermentation tanks.

For example, in a refinery, the AST143-S00 can collect temperature data from multiple thermocouples installed across distillation columns, ensuring precise temperature control in critical processes. Its high isolation rating protects control systems from electrical interference and transient faults, maintaining the integrity of measurements.

FAQ

Q1: What types of signals does the AST143-S00 support?
It supports thermocouple (TC) and millivolt (mV) signals across 16 isolated channels.

Q2: Is it suitable for hazardous environments?
Yes, it is rated for Zone 2 / Division 2 applications, ensuring safe operation in potentially explosive areas.

Q3: What is the isolation voltage?
The module can withstand up to 1500 V AC for safe operation in electrically noisy environments.

Q4: Can it be used with Yokogawa DCS systems?
Yes, the module integrates seamlessly with Yokogawa DCS platforms for efficient signal handling.

Q5: What industries typically use this module?
Industries include chemical, power generation, oil & gas, pharmaceuticals, and food processing.