Yokogawa AAI143-H53/A4D00 Analog Input Module Brand New

Overview

The Yokogawa AAI143-H53/A4D00 is a high-density analog input module for Yokogawa’s CENTUM VP and ProSafe-RS systems. It supports 16 fully isolated 4–20 mA input channels, ensuring reliable data acquisition from field transmitters. Engineers use it in oil and gas, chemical, power, and water industries. This module combines high accuracy, redundancy support, and HART communication for critical applications.

Technical Specifications

Signal Acquisition

• Channels: 16 isolated inputs
• Signal Type: 4–20 mA current input
• Maximum Current: 24 mA
• Input Impedance: 270Ω at 20 mA, 350Ω at 4 mA (power-on); ≥500 kΩ (power-off)
• Accuracy: ±16 μA
• Temperature Drift: ±16 μA per 10°C

Transmitter Power Supply

• Output Voltage: 19.0–25.5 VDC
• Current Limit: 25 mA per channel
• Compatibility: 2-wire and 4-wire transmitters (jumper configurable)

Communication

• HART Protocol: Supported with EB401 remote node, firmware Rev2+

Redundancy & Isolation

• Redundancy: Dual redundancy supported
• Isolation: 1500V AC for one minute between input and system

Electrical & Mechanical

• Power Consumption: 5V DC at 230 mA, 24V DC at 540 mA
• Weight: 0.3 kg

Input Specifications

• Channels: 16
• Voltage Input: 1–5 VDC
• Current Input: 4–20 mA DC (via 250Ω resistor)
• Impedance: 250Ω for current input, 1 MΩ for voltage input
• Protection: Up to 30 VDC, short-circuit protected
• Resolution: 12-bit
• Accuracy: ±0.1% of full scale
• Isolation: Channel-to-channel and channel-to-earth

Operational & Environmental

• Operating Temperature: 0–50°C
• Storage Temperature: -20–60°C
• Humidity: 5–90% RH, non-condensing
• Mounting: Standard Yokogawa terminal block
• Power Consumption: ~5 W

Model Variations

• AAI143: Standard analog input module
• -H53: Voltage/current input, 16 channels, with terminal board
• A4D00: Standard type, with signal converter, no special options