Yokogawa AAI143-H53/K4A00 | Analog Input Module 100% New

Overview

The Yokogawa AAI143-H53/K4A00 is an analog input module for Yokogawa CENTUM series DCS systems. It provides 16 isolated 4–20 mA input channels and supports HART communication protocol, enabling high-precision signal acquisition for industrial process control applications.

General Information

Part Number: AAI143-H53/K4A00
Manufacturer: Yokogawa
Brand / Country of Origin: Yokogawa / Japan
Series: AAI (Analog Input) Series
Type: Analog Input Module
Mounting: Rack-mounted within CENTUM control systems
Technology: Each channel configurable for 2-wire or 4-wire sensors, HART protocol support

Input Specifications

Input Channels: 16 isolated channels
Input Signal Type: 4–20 mA (HART enabled)
Input Current Range: 0–24 mA
Input Resistance: 270 Ω (at 20 mA) to 350 Ω (at 4 mA) powered; ≥500 kΩ unpowered
Withstand Voltage: 1500 V AC between input and system for 1 minute
Sensor Supply Voltage: 19.0 V (at 20 mA) to 25.5 V (at 0 mA)
Output Current Limit: Maximum 25 mA
Channel Configuration: Each channel configurable via pins for 2-wire or 4-wire sensors

Communication & Interface

Communication Protocols: HART
Interface Ports: Rack backplane connection for module communication
Diagnostics: Channel fault detection and module self-test
Operator Interface: LED indicators for power, channel status, and fault
Reset Features: Supports hardware and software reset

Environmental

Operating Temperature: 0 to +70 °C
Humidity: Up to 95% RH, non-condensing
Protection Rating: IP20 (suitable for control cabinet installation)

Dimensions & Weight

Dimensions (L × W × H): 107.5 × 32.8 × 130 mm

Weight: 0.3 kg

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