Overview
The Yokogawa AAR181-S50 is a 16-channel RTD input module designed for high-precision temperature measurement in industrial automation systems. It offers full channel isolation and robust signal processing for reliable operation.
General Information
Part Number: AAR181-S50
Manufacturer: Yokogawa Electric Corporation
Brand / Country of Origin: Yokogawa / Japan
Series: AAR181
Type: RTD Input Module
Mounting: Rack or panel installation within a Yokogawa control system
Function: Converts RTD (such as Pt100) sensor signals into data for monitoring and control
Power Specifications
Supply Voltage: Powered via system rack backplane
Power Consumption: Typically under ~2 W
Protection: Channel-to-channel and channel-to-system isolation to ensure signal integrity
Indicators: Supports module status and channel fault detection
Communication & Interface
Interface Type: Yokogawa I/O backplane connection
Input Channels: 16 individually isolated RTD inputs
Diagnostics: Includes per-channel fault detection and system status reporting
Compatibility: Compatible with Yokogawa AAR181 series I/O racks
Environmental
Operating Temperature: −20 °C to +70 °C
Storage Temperature: −40 °C to +85 °C
Humidity: Up to 95% RH, non-condensing
Protection Rating: IP20 (when installed inside a cabinet)
Cooling: Passive (natural convection)
Dimensions & Weight
Dimensions (L × W × H): 107.5 × 130 × 32.8 mm
Weight: Approx. 0.20 kg
