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The AMM12T (incorporating part number AMM12T) is a high-density analog data acquisition component designed for the Yokogawa CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). This...
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The AMM12T (incorporating part number AMM12T) is a high-density analog data acquisition component designed for the Yokogawa CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). This module serves as a specialized voltage input multiplexer, allowing for the efficient consolidation of multiple low-level voltage signals into a single system node. It is engineered for industrial environments where high-accuracy monitoring of secondary process variables or auxiliary sensor data is required.
| Specification | Details |
|---|---|
| Channel Count | 16 isolated voltage input channels |
| Input Signal Range | Configurable for standard DC voltage ranges (typically -10V to +10V or 1-5V) |
| Signal Isolation | 250V AC channel-to-channel and channel-to-ground isolation |
| A/D Resolution | 16-bit high-precision analog-to-digital conversion |
| Input Impedance | High-impedance design (>1 MΩ) to prevent signal loading |
| System Architecture | Native integration with Yokogawa RIO (Remote I/O) bus |
| Dimensions | 5.0 cm x 7.0 cm x 21.5 cm |
| Net Weight | 0.46 kg |
The AMM12T utilizes a high-speed multiplexing circuit to scan 16 field inputs sequentially, providing updated process variables to the controller with minimal latency. Its robust isolation barriers protect the DCS backplane from field-side electrical surges and ground loops, making it an ideal choice for power generation and chemical processing facilities where electrical noise is prevalent.
Q: Can the AMM12T be used for 4-20mA signals?
A: While primarily a voltage input module, the AMM12T can monitor 4-20mA current loops if a high-precision shunt resistor (typically 250 Ohms) is installed at the terminal board to convert the current into a 1-5V DC signal.
