Yokogawa AAI141-H50/K4A00 Analog Input Module | AAI141 16CH HART

AAI141-H50/K4A00 Product Focus

• Brand: Yokogawa
• Product Code: AAI141-H50/K4A00
• Module Type: AAI141 Analog Input Module
• Designed for clean 4–20 mA signal capture.
• Ideal for process control and monitoring systems.

Key Benefits for Engineers

• 16 input channels in one compact module.
• HART digital support for smart transmitters.
• Fast update cycle for stable loop control.
• Simple wiring with KS adapter option.
• Works well with Yokogawa Centum VP systems.

Technical Performance Data

• Input signal: 4 to 20 mA DC
• Channels: 16, non-isolated design
• Allowable input: Up to 27 mA current limit
• Accuracy: ±16 μA typical
• Update period: 10 ms
• Step response: 100 ms for loop stability
• Drift: ±16 μA per 10°C change
• Input resistance (ON): 400 Ω at 20 mA
• Input resistance (ON): 1000 Ω at 4 mA
• Off-state impedance: ≥500 kΩ
• Loop supply: 14.8 V minimum at 20 mA
• Max loop voltage: 26.4 V at 0 mA
• Power draw: 310 mA at 5 V DC
• Power draw: 450 mA at 24 V DC
• Weight: Only 0.2 kg

Connection and Integration

• Terminal type: Pressure clamp connection
• Cable support: KS cable and MIL connector options
• Transmitter mode: 2-wire or 4-wire per channel
• Channel setup: Easy pin-based selection

Suffix and Option Tree

• AAI141-H50/K4A00 Structure
  • H
    • HART digital communication enabled
  • 5
    • No explosion protection type
  • 0
    • Basic configuration level
  • K4A00
    • Includes KS Cable Interface Adapter

Typical Field Applications

• Pressure and flow transmitter input loops
• Analog acquisition in process automation
• Smart device diagnostics with HART tools
• Compact I/O cabinets with high channel needs
• Modernization of legacy 4–20 mA wiring

Package, Shipping, Warranty

• 1 × Yokogawa AAI141-H50/K4A00 Module
• Interface adapter included (K4A00 option)
• Factory-tested protective packing
• 12-month warranty included
• Worldwide shipping via FedEx, UPS, or DHL

Professional FAQ and Buying Advice

• Q: When should I select a non-isolated input module?
• A: Use it in clean cabinets with shared grounding systems.
• Q: What is the value of the K4A00 adapter?
• A: It makes KS cable wiring faster and reduces install time.
• Q: How can I improve signal quality in long cable runs?
• A: Keep cables shielded and separate from power wiring.
• Q: What is a good check before enabling HART devices?
• A: Confirm your control node supports HART pass-through.
• Q: How do I plan module quantity for a project?
• A: Count loops early and leave spare channels for expansion.

Contact Information

• Email: info@oiltechcontrols.com
• WhatsApp: +86 158 8020 0923

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