Yokogawa AAM21 mV, Thermocouple, and RTD Input Module
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The Yokogawa AAM21 is a versatile small electric power input module designed for use with the CENTUM CS 3000 and CENTUM CS 1000 control systems. It is capable of accepting a variety of input signals, including millivolts (mV), thermocouples, and RTDs, making it well-suited for a range of industrial applications.
Key Features
- High Accuracy: ±0.1% of full scale for mV and RTD inputs, and ±0.25°C for thermocouple inputs.
- Wide Input Range: Accepts mV signals from -10 V to +10 V, thermocouple signals from J, K, T, E, R, S, B, and N types, and RTD signals from Pt100, Pt500, and Cu50.
- Fast Response Time: 0.5 seconds for mV and RTD inputs, and 2.0 seconds for thermocouple inputs.
- Isolation: Input-to-output and input-to-power supply isolation to protect against ground faults and noise.
- Mounting Options: Can be mounted on a DIN rail or panel.
Technical Specifications
| Specification | Value |
|---|---|
| Input Range | mV: -10 V to +10 V, Thermocouple: J, K, T, E, R, S, B, and N types, RTD: Pt100, Pt500, and Cu50 |
| Accuracy | mV and RTD: ±0.1% of full scale, Thermocouple: ±0.25°C |
| Response Time | mV and RTD: 0.5 seconds, Thermocouple: 2.0 seconds |
| Isolation | Input-to-output: 2500 V RMS, Input-to-power supply: 1500 V RMS |
| Power Supply | 5.0 V DC |
| Power Consumption | 5 W |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Humidity | 0% to 95% RH, non-condensing |
| Vibration | 0.05 g rms, 10 Hz to 500 Hz |
| Shock | 5 g, 22 ms half-sine pulse |
| Dimensions | 125 mm (W) x 130 mm (D) x 248 mm (H) |
| Weight | 0.5 kg |
Applications
- Temperature measurement
- Pressure measurement
- Flow measurement
- Level measurement
- Vibration measurement
- Other industrial process measurements
The Yokogawa AAM21 module’s high accuracy, wide input range, fast response time, and robust isolation make it a reliable component for a variety of industrial process measurements, ensuring precise signal acquisition and compatibility with major control systems.