Overview
The Yokogawa AAI835-H50/K4A00 is an isolated analog input/output module designed for use in advanced process control and distributed control systems (DCS). Manufactured by Yokogawa Electric Corporation, Japan, this module provides reliable handling of 4–20 mA analog signals, offering high precision and stable performance in critical industrial automation applications.
General Information
Manufacturer: Yokogawa Electric Corporation
Country of Origin: Japan
Part Number: AAI835-H50/K4A00
Product Name: AAI835 Analog I/O Module
Series: AAI835 Series
Product Type: Analog Input/Output Module (Isolated)
Channel Configuration: 4 input channels + 4 output channels
Mounting: Rack-mounted module
Application: Industrial process control, automation, and monitoring
Power Specifications
Supply Voltage: 24 V DC
Power Consumption: Approx. 7 W
Input Current Capacity: Up to 25 mA per channel
Protection: Overvoltage, reverse polarity, and surge protection
Communication & Interface
Signal Type: 4–20 mA analog input and output
Interface: Rack-mounted I/O bus connection
Data Update Rate: Approx. 10 ms
Isolation: Channel-to-channel and channel-to-bus isolation
Diagnostics: Channel fault detection, signal break indication, and communication error monitoring
Environmental
Operating Temperature: −20 °C to +60 °C
Storage Temperature: −20 °C to +70 °C
Relative Humidity: 5% to 95% RH, non-condensing
Vibration Resistance: 10–60 Hz, amplitude ±0.1 mm
Protection Class: IP20 (for installation inside control cabinets)
Dimensions & Weight
Dimensions: 107.5 × 32.8 × 130 mm
Weight: 0.3 kg
