Yokogawa AAI835-H00/K4A00 Analog Input/Output Module

Overview

The Yokogawa AAI835-H00/K4A00 is a high-performance analog input/output module for CENTUM VP and other Yokogawa DCS platforms. It supports both input and output signals, making it ideal for integrating field instruments and actuators. Engineers use it to acquire precise process data and deliver reliable control to valves, motors, and other devices. Its robust design ensures stable operation in demanding industrial environments.

Technical Specifications

• Model: AAI835-H00/K4A00

• Type: Analog Input/Output Module

• Input Channels: 4 channels, 4–20 mA or 1–5 V DC

• Output Channels: 4 channels, 4–20 mA or configurable voltage output

• Number of Channels: 8 total channels

• Signal Isolation: Galvanic isolation between channels and system

• Communication Protocol: HART digital communication supported

• Input Resistance: 290 Ω at 20 mA, 450 Ω at 4 mA

• Input Impedance: 1 MΩ for voltage input, 250 Ω for current input

• Standard Input Ranges: 1–5 V DC, 4–20 mA DC

• Accuracy: ±0.1% of full scale

• A/D Conversion: 16-bit resolution

• Update Rate: 10 ms per channel

• Maximum Allowable Input: ±10 V DC or 24 mA DC

• Withstanding Voltage: 500 V AC for 1 minute

• Power Supply Voltage: 24 V DC

• Power Consumption: Approx. 5.5 W

• Operating Temperature: –20°C to +70°C (module) / 0°C to +50°C (conversion circuit)

• Storage Temperature: –40°C to +85°C

• Humidity Range: 5% to 95% RH, non-condensing

• Dimensions: 130 × 30 × 135 mm

• Weight: 0.3 kg