Yokogawa AAI143-H53/K4A00 Analog Input Module

Overview

The Yokogawa AAI143-H53/K4A00 is a 16-channel analog input module built for industrial process control. It supports isolated 4–20 mA signal inputs and includes HART communication. Engineers can rely on its high accuracy, fast update rate, and robust temperature tolerance. Additionally, it suits demanding environments compliant with the ISA G3 standard.

Technical Specifications

• Model Number: AAI143-H53/K4A00

• Product Type: Analog Input Module

• Manufacturer: Yokogawa

• Input Channels: 16 isolated channels

• Input Signal: 4–20 mA current loop

• Allowable Input Current: Up to 24 mA

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

• Input Resistance (ON): 270 Ω @ 20 mA, 350 Ω @ 4 mA

• Input Resistance (OFF): ≥500 kΩ

• Accuracy: ±16 µA

• Temperature Drift: ±16 µA per 10 °C

• Data Update Period: 10 ms

• Transmitter Power Supply:

• ≥19.0 V @ 20 mA

• ≤25.5 V @ 0 mA

• Output Limit: 25 mA

• Transmitter Configuration: Set 2-wire or 4-wire mode per channel

• Current Consumption:

• 230 mA @ 5 V DC

• 540 mA @ 24 V DC

• External Communication:

• Pressure clamp terminal

• MIL connector cable

• KS1 dedicated cable

• Communication Protocol: HART (digital communication)

• Environmental Rating: ISA G3, operating temperature -20 to +70 °C

• Explosion Protection: None

• Interface Adapter: KS Cable Interface (ATK4A-00)

• Weight: 0.3 kg