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Product Introduction
The Yokogawa AMM42-S3 is a high-performance multiplexer input module designed for use in industrial automation and process control systems. Part of Yokogawa’s field-proven CENTUM control system family, the AMM42-S3 is engineered for reliable and accurate analog signal acquisition in demanding environments. It supports multi-channel analog inputs and offers robust signal processing capabilities. With its modular design, the AMM42-S3 provides easy integration into distributed control systems (DCS), supporting efficient and centralized monitoring of multiple field devices.
The module is specifically designed to handle a large number of analog signals using a multiplexing method, which allows significant space savings and reduces wiring complexity in large-scale process control applications. Featuring excellent electrical isolation, high noise immunity, and extensive diagnostics, it is a trusted solution for critical operations in industries such as oil & gas, power generation, petrochemical, and water treatment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | AMM42-S3 |
| Function | Analog Input Multiplexer Module |
| Input Channels | 16 channels (1 to 5 VDC, 4 to 20 mA with external shunt) |
| Signal Type | DC Voltage / DC Current |
| Sampling Method | Time-division multiplexing (TDM) |
| Resolution | 16-bit |
| Accuracy | ±0.1% of reading |
| Input Isolation | Channel-to-channel and channel-to-system isolated |
| Input Impedance | > 1 MΩ for voltage input |
| Update Rate | 250 ms (total scan of all channels) |
| Power Consumption | ≤ 5.5 W |
| Diagnostics | Open wire detection, module fault detection |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to 70°C |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Mounting | Mounted on base plate (Yokogawa standard) |
| Dimensions (W x H x D) | 120 × 90 × 60 mm |
| Weight | 0.5 kg |
| Certifications | CE, CSA, ATEX, IECEx |
| System Compatibility | CENTUM CS3000 / VP, ProSafe-RS |
| Module Redundancy | Supported (with redundant pair setup) |
Applications
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Oil & Gas Facilities: Used for monitoring pressure, flow, and temperature transmitters across pipelines and production platforms.
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Power Plants: Enables centralized monitoring of turbine parameters and balance-of-plant systems.
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Petrochemical Industry: Ideal for processing units requiring high-density analog signal inputs.
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Water and Wastewater Treatment: Consolidates multiple analog signals from field devices for treatment and flow control.
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Pharmaceutical Manufacturing: Ensures precision in monitoring environmental and batch process parameters.
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Pulp and Paper Industry: Monitors various sensor data from large distributed field networks.
Product Advantages
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High-Density Input Capability: 16-channel analog input configuration significantly reduces the number of modules required.
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Multiplexed Architecture: Efficient time-division signal scanning reduces wiring and costs.
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High Accuracy and Resolution: 16-bit A/D conversion with ±0.1% accuracy ensures precision in signal acquisition.
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Enhanced Diagnostics: Built-in fault detection and open wire diagnosis reduce downtime.
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Electrical Isolation: Protects system integrity by isolating each input channel.
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System Integration: Seamless compatibility with Yokogawa’s CENTUM and ProSafe platforms.
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Redundancy Support: Increases system availability and reliability for mission-critical operations.
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Compact Footprint: Saves valuable cabinet space with narrow module width.
Frequently Asked Questions (FAQ)
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What types of signals can the AMM42-S3 accept?
It can accept both DC voltage and DC current signals, typically 1–5 V or 4–20 mA with external shunts. -
Is the AMM42-S3 module compatible with all Yokogawa systems?
It is designed for compatibility with Yokogawa CENTUM CS3000, CENTUM VP, and ProSafe-RS systems. -
How many channels does the AMM42-S3 support?
It supports 16 analog input channels per module. -
Does the module provide electrical isolation between channels?
Yes, each channel is electrically isolated from the others and from the system. -
What is the resolution of the A/D conversion?
The module provides 16-bit resolution for high accuracy. -
Can the AMM42-S3 detect faults or wiring issues?
Yes, it features built-in diagnostics for fault and open wire detection. -
Is redundancy supported with this module?
Yes, module-level redundancy is supported when installed in pairs. -
What are the installation requirements?
It is mounted on a standard Yokogawa baseplate and requires appropriate wiring and configuration. -
What certifications does this module have?
The AMM42-S3 is certified with CE, CSA, ATEX, and IECEx standards for safety and compliance. -
What environments is this module suitable for?
It is suitable for harsh industrial environments, operating in temperatures from 0°C to 50°C and humidity up to 95% RH.
Recommended Models – Related or Same Series
| Model | Description |
|---|---|
| AMM12C | Analog Input Module, 8-channel, voltage/current |
| AMM32T | Temperature Input Module, thermocouple type |
| ADM51C | Digital Input Module, 32-channel |
| AAI141-H50 | High-speed Analog Input Module (AI) |
| AAI143-S50 | Analog Input Module, current input |
| AAM50 | Multiplexer for analog signals, legacy support |
Popular Yokogawa Models
| Model | Description |
|---|---|
| CP451-10 | Processor Module for CENTUM VP |
| ADV151-P50 | Digital Output Module, 16 channels |
| AAI543-H50 | Isolated Analog Output Module |
| PW482-10 | Power Supply Module |
| SAI533-H33 | Safety Analog Input Module (ProSafe-RS) |
| ST5A | Fieldbus Temperature Transmitter |
