The Yokogawa AAR181-S50-S2 is an RTD input module that is part of the Yokogawa CENTUM VP Distributed Control System (DCS). It is used to measure temperature using Resistance Temperature Detectors (RTDs). The module has 16 input channels and can accept RTDs with a resistance of 10 Ω to 10 kΩ. It has a measurement accuracy of ±0.1% of span. The module is also dual redundant, which means that it can continue to operate even if one of the communication paths fails.
Here is a table of the key specifications of the Yokogawa AAR181-S50-S2:
| Feature | Specification |
|---|---|
| Number of input channels | 16 |
| RTD resistance range | 10 Ω to 10 kΩ |
| Measurement accuracy | ±0.1% of span |
| Input impedance | 100 kΩ |
| Output range | 0 to 10 V DC |
| Output impedance | 1 kΩ |
| Power consumption | 10 W |
| Operating temperature range | -20 to 60 °C |
| Dimensions | 110 mm (W) × 180 mm (H) × 82 mm (D) |
| Weight | 2 kg |
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