Yokogawa AMM22TJ: Thermocouple Input Multiplexer Module for Precise Temperature Measurement

Overview

The Yokogawa AMM22TJ is a high-performance thermocouple input multiplexer module designed for integration with the Yokogawa CENTUM VP distributed control system (DCS). It provides accurate temperature measurements across a broad range of industrial applications. Supporting up to 16 thermocouple inputs, the AMM22TJ streamlines wiring and space requirements while offering reliable temperature data for processes in sectors like oil and gas, petrochemical, and power generation.

Key Specifications

Features

• Cold Junction Compensation: The AMM22TJ incorporates cold junction compensation, ensuring highly accurate temperature readings from thermocouples in varying environmental conditions.
• Overrange Protection: With built-in overrange protection, it prevents damage to the module and ensures safe operation in extreme conditions.
• Short-Circuit and Open-Circuit Protection: The module features both short-circuit and open-circuit detection, safeguarding your system from faulty connections and minimizing downtime.
• Fault Diagnostics: Integrated fault diagnostics ensure reliable system performance by quickly identifying issues and providing actionable alerts for maintenance.
• Space-Saving Design: By supporting 16 thermocouple inputs, it reduces the need for multiple modules, cutting down on both space and wiring complexity.

Technical Parameters

• Input Channels: The AMM22TJ supports up to 16 thermocouple inputs, offering extensive monitoring capabilities.
• Temperature Range: Measures temperatures from -100°C to +1800°C, suitable for a wide range of industrial applications.
• Cold Junction Compensation: Ensures consistent and accurate temperature measurements, compensating for the effects of junction temperature.
• Overrange and Protection: Includes overrange protection to avoid system failures and damage from excessive temperature readings.
• Short-Circuit and Open-Circuit Detection: Offers built-in short-circuit and open-circuit detection, ensuring fault-free operation.
• Fault Diagnostics: Quickly identifies issues with fault diagnostics, ensuring reliable system operation.
• Dimensions: Measures 4.5″ x 3.0″ x 9.0″ (11.4 cm x 7.6 cm x 22.9 cm), offering easy integration into control panels.
• Weight: The module weighs 0.8 kg, making it lightweight and easy to handle during installation.

Applications

• Industrial Process Temperature Monitoring: The AMM22TJ is ideal for monitoring temperature in manufacturing plants, power stations, and other industrial processes where high-precision temperature data is required.
• Furnace and Oven Control: Perfect for controlling temperatures in furnaces and ovens, ensuring consistent and reliable thermal management.
• Hazardous Environment Temperature Measurement: Its robust design allows for safe and accurate temperature measurements in hazardous or high-risk environments.
• Rotating Equipment Temperature Monitoring: Ideal for monitoring the temperature of rotating machinery, including motors and turbines.
• Fluid and Gas Temperature Measurement: It offers reliable temperature measurements of fluids and gases, critical in various industrial operations.