Yokogawa AAI143-H53 Analog Input Module

Description

The AAI143-H53 is a 16-channel isolated analog input module by Yokogawa, supporting 4–20 mA signal processing. It features HART communication, extended temperature tolerance, and G3 environmental protection, making it ideal for harsh industrial environments.

Identification

• H: With HART protocol

• 5: No explosion protection

• 3: ISA G3 option, -20 to +70 °C temperature range

Input Specifications

• Channels: 16, isolated

• Input Signal: 4–20 mA

• Allowable Input Current: 24 mA

• Input Resistance (Power ON): 270 Ω (20 mA) to 350 Ω (4 mA)

• Input Resistance (Power OFF): ≥ 500 kΩ

Electrical & Protection

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

• Accuracy: ±16 µA

• Temperature Drift: ±16 µA / 10 °C

• Transmitter Power Supply:

• ≥19.0 V (at 20 mA)

• ≤25.5 V (at 0 mA)

• Output current limit: 25 mA

Performance

• Data Update Period: 10 ms

• 2-Wire / 4-Wire Setting: Per channel via setting pin

Power & Interface

• Max Current Consumption:

• 230 mA @ 5 V DC

• 540 mA @ 24 V DC

• External Connection: Pressure clamp terminal, MIL connector, KS1 cable

• Weight: 0.3 kg

• HART Communication: Supported