Product Description

The AAR181-S50 S2 is a high-precision 16-channel analog input module designed for the Yokogawa CENTUM VP and ProSafe-RS systems. It supports both thermocouples (TC) and resistance temperature detectors (RTD), providing accurate temperature data directly to the control logic.

This module integrates cold junction compensation and linearized temperature conversion, eliminating the need for external signal converters. The S2 hardware revision enhances circuit stability and reduces power consumption, while the module’s isolated input design protects the system from field-side electrical noise. Manufactured in Japan, it fits seamlessly into Yokogawa I/O units for modular deployment.

Technical Specifications

Application Scenarios

The AAR181-S50 S2 is commonly deployed in high-precision temperature monitoring applications, including:

• Boiler temperature control

• Distillation column monitoring

• Reactor thermal profiling

Industries include oil & gas, pharmaceuticals, and power generation. Its dual TC/RTD capability allows flexible instrumentation layouts with a single module platform.

Frequently Asked Questions

Does the AAR181-S50 S2 support redundant configurations?
Yes. Two modules can operate in dual-redundant configuration, ensuring continuous temperature data delivery even if one module fails.

What is the benefit of the S2 revision?
The S2 revision features enhanced hardware, providing improved long-term reliability and better EMI resistance compared to the original S1 production units.