Yokogawa AAR181-S50 S2 RTD Iuput Module

The Yokogawa AAR181-S50 S2 RTD Input Module is a high-precision input module designed for Yokogawa’s distributed control systems (DCS). It is engineered to measure resistance temperature detectors (RTDs) and convert these resistance values into standardized digital signals for accurate process monitoring and control.

The module supports a variety of RTD sensor types, including Pt100 and Pt1000, and provides reliable temperature measurement in industrial environments. Its advanced signal conditioning, high linearity, and noise immunity make it ideal for processes where precise temperature monitoring is critical. The AAR181-S50 S2 is optimized for seamless integration into Yokogawa control systems, ensuring real-time data acquisition, diagnostics, and fault detection.

Product Parameters

Product Applications

The AAR181-S50 S2 RTD Input Module is widely used in:

• Industrial Process Control – Monitoring temperature in chemical, petrochemical, and power plants.

• Energy Management – Measuring temperature in turbines, boilers, and heat exchangers.

• Batch Manufacturing – Ensuring precise thermal control for quality assurance.

• Oil & Gas – Supervising temperatures in pipelines, compressors, and refining processes.

• Food & Beverage Industry – Accurate temperature monitoring in processing and storage.

• Data Acquisition Systems – Converting RTD readings into reliable digital signals for DCS integration.

Product Advantages

• High Measurement Accuracy – Ensures precise temperature readings for critical processes.

• Multi-Channel Capability – Supports four RTD inputs simultaneously.

• Built-in Linearization – Automatically converts RTD resistance to accurate temperature values.

• Isolation and Noise Immunity – Protects against cross-talk and electrical interference.

• Fast Response Time – Real-time temperature measurement with minimal delay.

• Seamless DCS Integration – Designed for Yokogawa AAR-series racks and control systems.

• Diagnostic Support – Provides channel-level fault detection for preventive maintenance.

FAQ

1. What types of RTDs does the module support?

   It supports Pt100 and Pt1000 sensors.

2. How many input channels are available?

   The module has 4 independent RTD input channels.

3. What is the typical measurement accuracy?

   ±0.1°C under standard operating conditions.

4. Does the module provide channel isolation?

   Yes, it provides channel-to-channel and channel-to-system isolation.

5. What is the response time for temperature measurement?

   Typical response time is less than 500 milliseconds.

6. Can the module perform linearization of RTD signals?

   Yes, built-in linearization supports standard RTD curves.

7. Is it compatible with Yokogawa DCS systems?

   Yes, it integrates seamlessly with AAR-series racks and control systems.

8. What temperature range can it measure?

   From -200°C to 850°C, depending on the RTD type.

9. Does the module provide diagnostics or fault detection?

   Yes, it supports channel-level diagnostics and fault reporting.

10. Can it operate in high-humidity environments?

    Yes, it supports 5% to 95% relative humidity non-condensing.