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Product Introduction
The Yokogawa AMM22T Multiplexer Module is an analog input multiplexer designed to streamline and optimize the process of acquiring multiple analog signals in industrial automation systems. Engineered by Yokogawa, a global leader in measurement and control technology, this module allows multiple temperature signals from thermocouples or RTDs to be multiplexed efficiently, consolidating them into a single data stream for processing.
Built with reliability and precision in mind, the AMM22T supports robust temperature measurement applications, providing accurate, stable input signal conversion. It is tailored for integration with Yokogawa’s CENTUM and STARDOM control systems, which are widely used across industries for comprehensive process control.
This module simplifies wiring complexity, reduces installation costs, and enhances system maintainability while ensuring dependable operation even in challenging industrial environments.
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | AMM22T |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Temperature Input Multiplexer Module |
| Input Channels | 16 channels |
| Supported Sensor Types | Thermocouples (various types), RTDs |
| Thermocouple Types Supported | B, E, J, K, N, R, S, T |
| RTD Types Supported | Pt100, JPt100, Ni100, etc. |
| Input Accuracy | ±0.1% of full scale |
| Scan Time | Approximately 100 ms per channel |
| Input Impedance | High impedance for thermocouples; compatible with RTDs |
| Isolation Voltage | 1500 V AC for 1 minute between input and bus |
| Power Supply Voltage | Supplied via I/O base (typically 24 V DC) |
| Power Consumption | Approximately 5 W |
| Operating Temperature Range | -20°C to +55°C |
| Storage Temperature Range | -40°C to +70°C |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Dimensions (H × W × D) | 45 × 97 × 103 mm |
| Weight | 0.3 kg |
| Mounting Type | DIN rail mount |
| Diagnostic Features | Open circuit, short circuit, sensor break detection |
| Certifications | CE, KC, RoHS compliant |
Product Applications
The Yokogawa AMM22T Multiplexer Module is ideal for temperature monitoring and control in various industrial environments:
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Power Generation Plants: Monitoring temperatures of turbines, boilers, and heat exchangers to ensure safe operation and efficiency.
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Chemical and Petrochemical Industries: Managing temperature profiles in reactors, distillation columns, and pipelines for optimized chemical processes.
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Pharmaceutical Manufacturing: Precise temperature monitoring in batch processing and environmental controls.
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Food and Beverage Industry: Ensuring product quality and safety through accurate temperature control in processing and storage.
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Water Treatment Facilities: Measuring temperatures in various treatment stages to maintain operational standards.
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Oil & Gas: Temperature surveillance in pipelines, storage tanks, and refining processes.
Product Advantages
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Versatile Temperature Input Support: Compatible with a wide range of thermocouples and RTDs, making it flexible for diverse applications.
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High Accuracy and Stability: Maintains ±0.1% full-scale accuracy for reliable temperature readings.
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Robust Isolation: Ensures 1500 V AC isolation between inputs and the bus to minimize noise and interference.
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Comprehensive Diagnostics: Detects sensor faults such as open circuits or shorts early to prevent process disruptions.
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Compact and Space-Saving: Slim design and DIN rail mounting facilitate easy integration into control cabinets.
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Wide Operating Conditions: Suitable for environments ranging from -20°C to +55°C and high humidity.
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Energy Efficient: Low power consumption reduces overall system energy requirements.
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Seamless System Integration: Fully compatible with Yokogawa’s CENTUM and STARDOM control systems.
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Reliable Build Quality: Designed for long-term industrial use, resisting vibration and electrical noise.
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Global Compliance: Meets international certifications including CE, KC, and RoHS standards.
Frequently Asked Questions (FAQ)
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Q: What sensor types does the AMM22T support?
A: It supports thermocouples of types B, E, J, K, N, R, S, T and RTDs like Pt100, JPt100, and Ni100. -
Q: How many input channels does the AMM22T have?
A: The module has 16 temperature input channels. -
Q: What is the accuracy of the temperature measurements?
A: It offers ±0.1% full-scale accuracy. -
Q: Can the AMM22T detect sensor faults?
A: Yes, it includes diagnostics for open circuits, short circuits, and sensor breaks. -
Q: What are the module’s physical dimensions and weight?
A: Dimensions are 45 × 97 × 103 mm, weighing 0.3 kg. -
Q: What is the power supply requirement?
A: It is powered via the I/O base, typically using 24 V DC. -
Q: What temperature range can the AMM22T operate within?
A: It operates from -20°C to +55°C. -
Q: Is the AMM22T compatible with Yokogawa control systems?
A: Yes, it is fully compatible with CENTUM and STARDOM systems. -
Q: How is the module mounted?
A: The AMM22T is designed for DIN rail mounting. -
Q: Does the module comply with international standards?
A: Yes, it complies with CE, KC, and RoHS standards.
Related or Compatible Models in the Same Series
| Model | Description | Channels | Signal Type | Typical Use |
|---|---|---|---|---|
| AMM22C | Current Input Multiplexer Module | 16 | 4–20 mA current | Current input monitoring |
| AMM22J | Voltage Input Multiplexer Module | 16 | Voltage DC | Voltage input monitoring |
| AMM22M | Analog Input Multiplexer Module | 16 | Voltage & Current | General analog inputs |
| AMM12T | Compact Temperature Input Module | 12 | Thermocouples/RTDs | Smaller channel count needs |
| AIM10C | Isolated Analog Input Module | 8 | Thermocouple/RTD | Temperature measurements |
| ADM51C | Digital Input Multiplexer Module | 16 | Digital ON/OFF signals | Digital signal monitoring |
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| Model | Description | Function | Industry Application |
|---|---|---|---|
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