Yokogawa AMM12 Voltage Input Multiplexer Module

The Yokogawa AMM12 Voltage Input Multiplexer Module is a versatile and high-density analog input unit specifically engineered for use in distributed control systems (DCS), particularly within the Yokogawa CENTUM series. Designed to support multiple analog voltage signal inputs, the AMM12 provides a cost-effective and space-saving solution for acquiring field data from various voltage-type sensors and transmitters.

This module is typically deployed in environments where multiple voltage signals need to be measured reliably and efficiently. With excellent signal integrity, robust isolation capabilities, and durable design, the AMM12 is ideal for continuous process industries. Its integration ensures smooth data acquisition, fast response, and seamless communication with the host DCS system, making it an integral component of Yokogawa’s control strategy.

Product Specifications

Applications

1. Chemical and Petrochemical Plants – For accurate voltage signal acquisition from temperature, pressure, and flow transmitters across production lines.

2. Power Generation Facilities – Essential in turbine control systems and auxiliary voltage monitoring circuits.

3. Water Treatment Plants – Integrates with SCADA and DCS systems for monitoring pump control, dosing systems, and tank levels.

4. Oil & Gas Refineries – Suitable for hazardous zone installations where real-time signal reliability is critical.

5. Pharmaceutical Industry – Ensures GMP-compliant analog signal acquisition in sterile and cleanroom conditions.

6. Pulp and Paper Manufacturing – Manages process automation by collecting analog signals from sensors installed on rollers, digesters, and dryers.

7. Food & Beverage Processing – Supports continuous voltage input from temperature and process control sensors in high-hygiene environments.

8. Steel and Mining Industries – Handles multiple analog signals under harsh operating conditions like high dust or temperature fluctuations.

Product Advantages

• Multi-Channel Design: Supports up to 16 voltage input channels, reducing the need for multiple modules and saving space.

• High Signal Integrity: Advanced channel-to-channel isolation and high input impedance ensure minimal signal interference.

• Diagnostic Intelligence: Built-in health monitoring for each channel simplifies troubleshooting and maintenance.

• System Flexibility: Fully compatible with Yokogawa’s CENTUM VP/CS 3000 systems, providing plug-and-play integration.

• Compact Footprint: Despite offering 16 inputs, it maintains a slim and compact size, ideal for dense cabinet layouts.

• Environmental Durability: Designed to perform under varied temperature and humidity ranges with industrial-grade components.

• Hot Swapping Capability: Enables safe module replacement without shutting down or affecting operations.

• Long Lifecycle Support: Yokogawa offers long-term availability and support for the AMM12, reducing lifecycle costs.

• Regulatory Compliance: Certified for use in regulated markets, ensuring smooth audits and quality compliance.

• Field-Proven Reliability: Widely adopted in critical process sectors, proving its stability and performance in real-world applications.

Frequently Asked Questions (FAQ)

1. What type of signals can the AMM12 accept?

   The AMM12 accepts analog DC voltage signals ranging from -10 V to +10 V.

2. Is the AMM12 compatible with the CENTUM VP system?

   Yes, it is designed to work seamlessly with Yokogawa’s CENTUM CS and VP control systems.

3. How many channels are supported by this module?

   It supports 16 individual analog voltage input channels.

4. Does the AMM12 support hot swapping?

   Yes, it can be replaced while the system is running without disruption.

5. What isolation features does the AMM12 offer?

   It features both channel-to-channel and channel-to-ground isolation for safety and signal clarity.

6. What is the resolution of the analog-to-digital conversion?

   The AMM12 offers 16-bit resolution for high-precision data acquisition.

7. What kind of diagnostic features are built into the AMM12?

   The module includes self-diagnostics and open circuit detection for each channel.

8. Can the AMM12 be installed in outdoor environments?

   It is typically installed in enclosed control panels indoors. Outdoor use requires proper enclosure and environmental protection.

9. How is the module powered?

   It draws power from the control system’s backplane or base unit.

10. What maintenance is required?

    The AMM12 is maintenance-free under normal operation; periodic visual inspection and testing during scheduled shutdowns are sufficient.