The Yokogawa AAR145‑S50 is a precision RTD/Potentiometer Input Module designed for accurate temperature and resistance measurement in distributed control systems. With 16 isolated input channels, it ensures reliable signal acquisition and robust performance in industrial environments.
Technical Specifications:
Manufacturer: Yokogawa
Model Number: AAR145‑S50
Product Type: RTD/Potentiometer Analog Input Module
Input Channels: 16 isolated channels
Signal Types: RTD (Pt100, Pt1000, Ni100, Cu10) and potentiometer inputs
Resolution: 16‑bit A/D conversion
Input Range: −200 °C to +850 °C (RTD), 0–10 kΩ (potentiometer)
Accuracy: ±0.1% of full scale
Temperature Drift: ≤ 50 ppm/°C
Update Rate: 100 ms typical
Isolation: Channel‑to‑channel and channel‑to‑system isolation
Suffix Codes:
5: No explosion protection
0: Basic type
Power Supply: 24 VDC nominal
Current Consumption: Approx. 200 mA
Operating Temperature: −20 °C to +60 °C
Shipping Weight: 1.5 kg
Applications:
Temperature monitoring in process plants
Resistance‑based actuator and valve position sensing
Integration with Yokogawa CENTUM VP and ProSafe‑RS systems
FAQ:
Q: Can the AAR145‑S50 handle mixed RTD and potentiometer inputs simultaneously?
A: Yes, channels can be configured independently for RTD or potentiometer signals.
Q: Does the S50 suffix affect performance?
A: No, the suffix only indicates configuration options (basic type, no explosion protection).
