Overview
The Yokogawa AAI143-H53/K4A00 is a high-performance analog input module for CENTUM CS 3000 and ProSafe-RS systems. It supports HART communication, making it suitable for integrating smart transmitters. With 16 isolated input channels, the module ensures accurate current signal acquisition and strong electrical isolation. It delivers fast updates, robust reliability, and compliance with ISA G3 environmental standards.
Technical Specifications
- Model: AAI143-H53/K4A00
- Manufacturer: Yokogawa Electric Corporation
- Product Type: Analog Input Module
- Input Channels: 16 isolated channels
- Input Signal: 4–20 mA DC
- Allowable Input Current: Up to 24 mA
- Measurement Accuracy: ±0.05% of span
- Resolution: 16 bits
- Input Resistance: 270–350 Ω (power ON), ≥500 kΩ (power OFF)
- Accuracy: ±16 µA
- Drift Due to Temperature: ±16 µA per 10°C
- Withstanding Voltage: 1500 V AC, 1 minute (input to system)
- Data Update Period: 10 ms
- Transmitter Power Supply: 19.0–25.5 V, current limit 25 mA
- Power Consumption: Max. 6.5 W (230 mA at 5 V DC, 540 mA at 24 V DC)
- External Communication: Pressure clamp terminal, MIL connector, KS1 cable
- Interface Adapter: K4A00 for AEA4D terminal board connection
- Operating Temperature Range: –20°C to +70°C
- Environmental Standard: ISA G3 compliant
- Explosion Protection: None (as per code “5”)
- External Connection: 40-pin connector
- Weight: 0.3 kg












