AAI543-H00/K4A00 Analog Output Module – Yokogawa 16-Ch 4-20mA HART

Product Brief – AAI543-H00/K4A00

• Type: Analog Output Module
• Brand: Yokogawa
• Model: AAI543-H00/K4A00
• Series: AAI543
• Outputs: 16 isolated channels, 4-20 mA
• HART: Built-in digital communication (HART protocol)
• Redundancy: Standard switch-over for redundant configurations
• Terminal: Includes KS Cable Interface Adapter (ATK4A-00)

Key Technical Data – Tree Structure

• Output
  • Signal: 4 to 20 mA
  • Channels: 16, isolated
  • Load resistance: 0 to 750 Ω
  • Accuracy: ±48 µA
  • Update period: 10 ms
• Protection & Detection
  • Withstanding voltage: 1500 V AC (1 min, output to system)
  • Circuit-open detection: < 0.65 mA
  • Drift: ±16 µA per 10 °C ambient change
• Power
  • 5 V DC: 230 mA max
  • 24 V DC: 540 mA max
• Communication & Connection
  • HART: Yes (digital communication)
  • External: Pressure clamp terminal, MIL connector, KS1 cable
• Physical
  • Weight: 0.4 kg
  • Adapter: KS Cable Interface (ATK4A-00) included

Expert Review

AAI543-H00/K4A00 delivers precise 4-20 mA control with ±48 µA accuracy. The 10 ms update rate supports fast loops. HART adds digital diagnostics and configuration. Redundant-ready design improves system reliability. A solid choice for critical process applications.

Manager’s Insight

This module reduces wiring complexity with the KS1 cable system. The 1500 V isolation protects the controller. Use it for valve positioning, pump speed, or actuator control. Its drift spec ensures stable output across temperature changes.

Compatible Devices & Applications

• Systems: Yokogawa CENTUM VP, ProSafe-RS, or any DCS accepting 4-20 mA
• Actuators: Control valves, dampers, variable speed drives
• Applications: Flow control, pressure regulation, temperature loops
• Industries: Oil & gas, chemical, power generation, water treatment

Comparison – Similar Models

• AAI543-H00/K4A00 – no HART, basic type
• AAI543-S50/K4A00 – with HART and special redundancy
• AAI143-H50 – 8-channel version, same family

FAQ – Professional Questions

• Q: What is the output accuracy of AAI543-H50/K4A00?
• A: ±48 µA over full range.
• Q: Does this module support HART communication?
• A: Yes, HART is built-in for digital configuration.
• Q: What is the maximum load resistance?
• A: 750 Ω at 24 V supply.
• Q: Can I use it in a redundant system?
• A: Yes, it has standard switch-over for redundancy.
• Q: What cable do I need for connection?
• A: Use KS1 dedicated cable or MIL connector.

Experience-based FAQ & Selection Guide

• Q: How to avoid ground loop issues?
• A: Use isolated outputs – this module provides channel isolation.
• Q: What happens if the load is shorted?
• A: The module limits current; it detects open circuit below 0.65 mA.
• Q: Can I calibrate the output without a HART communicator?
• A: Yes, use the DCS or software tools via HART.
• Q: Is the adapter included?
• A: Yes, K4A00 suffix includes the KS Cable Interface Adapter.
• Q: How to mount this module?
• A: It fits standard Yokogawa I/O racks (no extra bracket).
• Q: Does it support 0-20 mA output?
• A: No, it outputs 4-20 mA only.

Selection Guide – What to Consider

• Check your DCS compatibility – works with CENTUM VP and ProSafe-RS.
• Count your output points – 16 channels per module saves space.
• Need HART? – This model includes it; choose -H00 for non-HART.
• Load resistance – ensure your device stays within 0-750 Ω.
• Redundancy – select this for critical loops that cannot fail.

Warranty, Shipping & Support

• Warranty: 12 months against manufacturing defects.
• Dispatch: 12–24 hours after order confirmation.
• Couriers: FedEx, UPS, DHL (express delivery).

Contact Information

For inquiries: sales@powergearx.com
WhatsApp: +86 18030005825

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