Yokogawa AAI143-S50/A4S10 Isolated Analog Input Module

Overview

The Yokogawa AAI143-S50/A4S10 is a 16-channel isolated analog input module. Yokogawa designed it for use in CENTUM VP and CS 3000 distributed control systems. It supports standard 4–20 mA current signals and provides high noise immunity. This model also supports HART communication, enabling users to perform remote diagnostics and configuration efficiently. Moreover, it features channel-to-channel and channel-to-system isolation, ensuring safe and reliable performance.

Technical Specifications

• Input Type: Analog current input (4–20 mA)

• Number of Channels: 16 (each channel is individually isolated)

• HART Communication: Supported

• Accuracy: ±0.1% of full scale

• Input Signal Range: 4 to 20 mA DC

• Allowable Input Current: Up to 24 mA

• Withstanding Voltage: 1500 V AC (input to system, 1 minute)

• Data Update Period: 10 ms

• Transmitter Power Supply:

• 19.0 V minimum (at 20 mA)

• 25.5 V maximum (at 0 mA)

• Output current limit: 25 mA

• Transmitter Configuration:

• 2-wire or 4-wire selectable per channel using a pin setting

• Drift (Ambient Temperature): ±16 µA per 10°C

• Maximum Current Consumption:

• 230 mA (5 V DC)

• 540 mA (24 V DC)

• Power Supply Voltage: 5 V DC, approx. 500 mA

• Mounting Options: DIN rail or panel mounting

• Operating Temperature: –20°C to +60°C

• Dimensions: 50 mm × 25 mm × 120 mm

• Weight: 0.3 kg

• Redundancy: Supports dual-redundant configurations

• Applications: Industrial automation, process control, instrumentation