Yokogawa AAI835-S03 Analog Input Module

Overview

The Yokogawa AAI835-S03 is a robust analog input module for CENTUM VP and CENTUM CS 3000 systems. It converts signals from field devices, including pressure transmitters, thermocouples, and flow meters, into accurate digital data. This module belongs to Yokogawa’s FIO (Fieldbus I/O) series, offering flexibility and high reliability in process automation. It supports multiple input and output types while maintaining galvanic isolation to reduce electrical noise and prevent ground loops. Its compact design and industrial-grade construction ensure stable performance in harsh environments.

Technical Specifications

• Module Type: Analog Input Module

• Number of Channels: 8 analog input, 8 analog output

• Input Signal Types: 4–20 mA, 1–5 V DC

• Output Signal Types: Configurable, e.g., −10 to +10 V DC

• Input Impedance: 250 Ω

• Resolution: 16-bit

• Accuracy: ±0.1% of span

• Response Time: 10 ms (typical)

• Isolation: Galvanic isolation between channels

• Communication Protocol: Proprietary FIO (Fieldbus I/O)

• Power Supply: Typically 24 V DC

• Power Consumption: 3.5 W (typical)

• Operating Temperature: −20°C to +70°C

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

• Weight: 0.3 kg