Overview
The Yokogawa AAI835-H00/K4A00 is a high-performance analog input module designed for the CENTUM CS 3000 and CENTUM VP distributed control systems. Manufactured by Yokogawa Electric Corporation, Japan, this module provides accurate signal processing for 4–20 mA analog inputs, ensuring precise measurement and reliable data transmission in industrial automation and process control environments.
General Information
Manufacturer: Yokogawa Electric Corporation
Country of Origin: Japan
Part Number: AAI835-H00/K4A00
Product Name: Analog Input Module
Series: CENTUM CS 3000 / CENTUM VP
Product Type: Analog Input (AI) Module
Input Type: 4–20 mA DC, isolated
Number of Channels: 8
Mounting: I/O rack-mounted module
Isolation: Channel-to-bus and channel-to-channel isolation
Power Specifications
Power Supply Voltage: 24 V DC
Power Consumption: Approx. 7.0 W
Input Impedance: 250 Ω (typical for current loop input)
Protection: Overvoltage, surge, and reverse polarity protection
Communication & Interface
Interface Type: System I/O bus communication
Signal Conversion: High-resolution A/D converter per channel
Resolution: 12-bit digital output
Update Rate: Fast response for process control applications
Diagnostics: Channel fault detection, self-diagnostics, communication error monitoring
Configuration: Set via Yokogawa system configuration software
Environmental
Operating Temperature: 0 to +55 °C
Storage Temperature: −20 to +70 °C
Humidity: 5% to 95% RH, non-condensing
Vibration Resistance: 10–60 Hz, 0.1 mm amplitude
Protection Class: IP20 (for installation in control cabinets)
Dimensions & Weight
Dimensions: 107.5 × 32.8 × 130 mm
Weight: 0.3 kg
