Overview
The Yokogawa AAI143-S03 is a 16-channel analog input module designed for Yokogawa CENTUM VP distributed control systems (DCS). It supports standard 4–20 mA current input signals and provides high-precision signal conversion for industrial automation and process control applications.
General Information
Part Number: AAI143-S03
Manufacturer: Yokogawa
Brand / Country of Origin: Yokogawa / Japan
Series: AAI Series
Type: Analog Input Module
Mounting: Rack-mounted in DCS chassis
Technology: 16 isolated channels, configurable 2-wire or 4-wire transmitter connection, supports HART communication
Power Specifications
Supply Voltage: +5 V DC and +24 V DC from backplane
Power Consumption: Approx. 3.5 W total (~50 mW per channel)
Transmitter Supply: 19.0–25.5 V DC (current limited at 25 mA)
Isolation: 1500 V AC between input and system for 1 minute
Communication & Interface
Input Signal: 4–20 mA DC
Number of Channels: 16 isolated channels
Input Resistance: 270 Ω at 20 mA, 350 Ω at 4 mA (powered); ≥500 kΩ unpowered
Accuracy: ±16 µA
Update Period: 10 ms
Channel Configuration: Selectable 2-wire or 4-wire transmitter per channel
HART Support: Yes
Hot-Swap Support: Yes
Environmental
Operating Temperature: 0 °C to +60 °C
Humidity: Up to 95% RH, non-condensing
Protection Rating: IP20 (for cabinet installation)
Dimensions & Weight
Dimensions (L × W × H): 107.5 × 32.8 × 130 mm
Weight: 0.3 kg
