Yokogawa AMM22T Thermocouple Input Multiplexer Module

Overview

The Yokogawa AMM22T is an advanced thermocouple input multiplexer module designed for Centum CS and Centum VP control systems. This module provides precise temperature measurements by supporting a wide range of thermocouples. It optimizes system efficiency with its multiplexing capabilities, significantly reducing wiring complexity. Its compact size and design simplify installation in control panels, making it an ideal choice for industrial automation systems.

Key Specifications

Feature	Specification
Thermocouple Types	J, K, T, E, R, S, B, N
Input Temperature Range	-200°C to +600°C
Input Impedance	100 MΩ for high measurement accuracy
Common Mode Rejection Ratio	>60 dB
Output Range	Configurable: 0-20 mA or 4-20 mA
Output Accuracy	±0.25%
Power Supply	24 VDC
Dimensions	2.0″ x 3.0″ x 9.0″ (5.1 cm x 7.6 cm x 22.9 cm)
Weight	1 lb 2.1 oz (0.5 kg)

Features

Wide Thermocouple Support: The AMM22T supports multiple thermocouple types, including J, K, T, E, R, S, B, and N, providing versatile temperature measurement options.
Accurate Temperature Measurement: With an input temperature range from -200°C to +600°C, it delivers high-precision temperature readings for various industrial applications.
High Input Impedance: Featuring an input impedance of 100 MΩ, it ensures accurate temperature measurement even in low signal environments.
Excellent Noise Rejection: The module provides a common mode rejection ratio of >60 dB, minimizing electrical noise and interference for stable signal output.
Configurable Output: The output can be set to either 0-20 mA or 4-20 mA, offering flexible integration with existing control systems.
Compact and Lightweight: Its dimensions of 2.0″ x 3.0″ x 9.0″ and weight of 0.5 kg make the AMM22T easy to install in various control panel configurations.
Low Power Consumption: Powered by 24 VDC, the module is energy-efficient, contributing to overall system reliability.

Technical Parameters

Thermocouple Types: Compatible with J, K, T, E, R, S, B, and N thermocouples for diverse temperature measurements.
Temperature Range: Measures temperatures from -200°C to +600°C, ensuring broad application coverage.
Input Impedance: 100 MΩ, offering high accuracy in low-signal environments.
Common Mode Rejection: >60 dB to effectively eliminate noise interference.
Output: Configurable output options of 0-20 mA or 4-20 mA.
Output Accuracy: ±0.25% for precise and reliable output.
Power Supply: Requires a 24 VDC supply for operation.
Dimensions: 2.0″ x 3.0″ x 9.0″ (5.1 cm x 7.6 cm x 22.9 cm), compact and easy to install.
Weight: Weighs only 1 lb 2.1 oz (0.5 kg), lightweight for easy handling.

Applications

The AMM22T is ideal for applications that require accurate temperature measurement in industrial settings. Its ability to handle multiple thermocouple types and provide high-precision data makes it suitable for use in process control, automation, and monitoring systems. Whether integrated into a Centum CS or Centum VP system, the module ensures optimal performance and reliability in diverse industrial environments.