Yokogawa AAI135-S00/K4A00 Analog Input Module

Overview

The Yokogawa AAI135-S00/K4A00 is a high-precision analog input module. It works with CENTUM CS 3000 and CENTUM VP distributed control systems. The module acquires analog signals from field instruments like pressure transmitters, temperature sensors, and flow meters. It converts these signals into accurate digital data for reliable process monitoring and control. Designed for industrial environments, it ensures stable operation with minimal signal noise. Its compact design allows easy installation in backplane-mounted control stations.

Technical Specifications

• Model Number: AAI135-S00/K4A00

• Module Type: Analog Input Module

• Number of Channels: 8 or 16 channels depending on configuration

• Input Signal Type: 4–20 mA DC (standard); may support 1–5 V DC

• Input Impedance: Current: 250 Ω; Voltage: 1 MΩ

• Input Range: Current: 0–22.4 mA; Voltage: 0–5.6 V

• A/D Conversion: Sigma-Delta modulation

• Accuracy: ±0.1–0.2% of full scale

• Resolution: 12-bit

• Signal Conditioning: Internal filtering and diagnostics

• Power Supply: 24 V DC (from backplane)

• Power Consumption: Approx. 1.5–4 W

• Operating Temperature: –10°C to +60°C or 0°C to 50°C depending on version

• Storage Temperature: –40°C to +80°C or –20°C to +60°C

• Humidity: 5–95% RH (non-condensing)

• Mounting: Backplane mounting in control station unit

• Dimensions (W x H x D): 3.2 × 12.7 × 12.7 cm or 38 × 160 × 135 mm

• Weight: 0.3 kg