Overview
The Yokogawa ALR121-S53 is an analog input module developed for Yokogawa’s DCS platforms. It collects and converts analog signals from field devices into digital values, enabling accurate and stable process monitoring in automation systems.
General Information
Part Number: ALR121-S53
Manufacturer: Yokogawa
Brand / Country of Origin: Yokogawa / Japan
Type: Analog Input Module
Mounting: Rack or panel installation within control system chassis
Technology: Precision analog-to-digital signal conversion for process control
Power Specifications
Supply Voltage: 24 V DC
Power Consumption: Approx. 3 W
Protection: Overvoltage and reverse-polarity protection
Indicators: LEDs for power and input channel status
Communication & Interface
Interface: System backplane connection
Signal Type: Analog input (voltage or current)
Diagnostics: Real-time channel status and fault detection
Operator Interface: Status LEDs and software-based configuration
Environmental
Operating Temperature: 0 °C to +60 °C
Humidity: Up to 95% RH, non-condensing
Installation Environment: Industrial control cabinet
Dimensions & Weight
Dimensions: 126.7 × 32.8 × 130 mm
Weight: 0.3 kg



