Overview
The Yokogawa AAM21J is a universal analog I/O module designed for use in Yokogawa DCS systems. It provides accurate measurement and output of various analog signals including voltage, current, thermocouple, and RTD inputs.
General Information
Brand: Yokogawa
Country of Origin: Japan
Model: AAM21J
Type: Universal Analog Input/Output Module
Application: Industrial process control and monitoring
Power Specifications
Supply Voltage: 24 V DC
Power Consumption: ≤ 5 W
Protection: Input/output isolation and over-voltage protection
Communication & Interface
Channels: 8 input / 8 output
Input Types: mV, V, mA, thermocouple, RTD
Accuracy: ±0.1% of span
Diagnostics: Channel fault detection and status indicators
Environmental
Operating Temperature: −20 °C to +70 °C
Humidity: ≤ 95% RH (non-condensing)
Dimensions & Weight
Dimensions (L × W × H): 105 × 90 × 30 mm
Weight: Approx. 0.25 kg



