Description
Overview
The Yokogawa AMM25T is an 8-channel analog input multiplexer module engineered for CENTUM VP and CENTUM CS distributed control systems. It consolidates multiple field signals into a single data stream for precise, high-speed processing. Built with compact, corrosion-resistant materials, it is ideal for installation in tight spaces and skid-mounted applications.
Key Features
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Supports 8 analog input channels for current and voltage signals
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Compatible with 4–20 mA and millivolt input types
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High accuracy and repeatable measurements
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Channel-to-bus electrical isolation ensures robust signal integrity
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Compact and corrosion-resistant construction for harsh industrial environments
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Plug-in design for easy integration with I/O baseplates
Technical Specifications
Functional Parameters
| Item | Specification |
|---|---|
| Model | AMM25T |
| Type | Analog Input Multiplexer Module |
| Input Channels | 8 |
| Signal Types | Current (4–20 mA), Voltage (mV) |
| System Compatibility | CENTUM VP, CENTUM CS/CS 3000 |
| Application | Flow meters, pressure/temperature transmitters, sensors |
Electrical Parameters
| Item | Specification |
|---|---|
| Input Range | 0–20 mA, 0–50 mV (typical) |
| Accuracy | ±0.1% FS typical |
| Isolation | Channel-to-bus isolation |
| Power Supply | Provided via I/O baseplate |
Mechanical Parameters
| Item | Specification |
|---|---|
| Dimensions (W×H×D) | 45 × 97 × 103 mm |
| Weight | ~0.3 kg |
| Mounting | I/O baseplate slot |
| Cooling | Natural convection |
| Construction | Compact, corrosion-resistant |
Environmental Conditions
| Item | Specification |
|---|---|
| Operating Temperature | 0 °C to 55 °C |
| Storage Temperature | −40 °C to 70 °C |
| Humidity | 5–95% RH, non-condensing |
| EMC | Industrial-grade, meets harsh environment standards |
Applications
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Skid-mounted process control systems
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Multi-channel analog signal acquisition
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Flow, pressure, temperature, and level monitoring
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Integration with CENTUM VP/CS distributed control nodes
FAQ
Q: Can AMM25T handle both current and voltage signals simultaneously?
A: Yes, each channel supports either 4–20 mA current or millivolt-level voltage inputs.
Q: Is the module suitable for harsh environments?
A: Yes, it is corrosion-resistant, compact, and designed for high-temperature, high-humidity industrial conditions.
Q: How does AMM25T compare with AMM24T?
A: AMM25T offers improved channel isolation, higher accuracy, and extended input range compared to AMM24T.
Features
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