The AMM12T (Model: AMM12T) is a specialized analog input module designed for high-precision temperature monitoring within the Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). Operating as part of the Field I/O (FIO) subsystem, the AMM12T (Order Number: AMM12T) provides a centralized interface for 16 channels of RTD and Thermocouple signals. The "T" designation specifically indicates its optimization for thermal acquisition, distinguishing it from standard voltage/current modules by providing internal cold-junction compensation and linear conversion for a wide variety of sensor types.
Each of the 16 channels on the AMM12T (Part Number: AMM12T) is galvanically isolated, ensuring that sensitive millivolt inputs are shielded from electrical noise, ground loops, and field-side transients. This module is an essential component for Expertise-driven process control in petrochemical refineries, power generation facilities, and heavy industrial plants. By integrating the AMM12T (Model: AMM12T), engineers can achieve high-density temperature marshalling with the Trustworthiness (E-E-A-T) required for safety-critical monitoring of reactors, turbines, and distillation columns.
The AMM12T (Order Number: AMM12T) features a robust diagnostic engine capable of identifying sensor failures in real-time. It continuously monitors for sensor burnout (open circuit) or short-circuit conditions, immediately flagging "Bad Signal" status to the Field Control Station (FCS). This allows for proactive maintenance and prevents control logic from reacting to erroneous data, a critical factor in maintaining plant safety and efficiency.
The AMM12T (Model: AMM12T) is engineered to maintain accuracy across extreme industrial temperature ranges.
| Feature | Details |
| Manufacturer | Yokogawa Electric Corporation |
| Model Number | AMM12T |
| Product Type | Analog Input Module (Temperature/RTD/TC) |
| Number of Channels | 16 Channels, isolated |
| Supported RTD Signals | Pt100, JPt100, Pt50, Cu10 |
| Supported TC Signals | Type K, J, T, E, R, S, B, N |
| Measurement Range | –200°C to +850°C (TC), –200°C to +400°C (RTD) |
| Accuracy | ±0.1°C (RTD), ±0.5°C (TC) |
| Resolution | 12 to 16-bit (System configuration dependent) |
| Isolation | Channel-to-system galvanic isolation |
| Diagnostics | Sensor burnout detection, short-circuit monitoring |
| Operating Temp | 0°C to +60°C |
| Dimensions (W x H x D) | 2.0 x 3.0 x 9.0 inches (5.1 x 7.6 x 22.9 cm) |
| Weight | 0.5 kg (1.0 lbs) |
| Country of Origin | Japan |
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