Yokogawa AAI141 Analog Input Module – 16-Channel, 4-20 mA, HART
Product No.: AAI141-H50/K4A00 | Model: AAI141 | Series: Analog I/O Module
High-density 16-channel non-isolated analog input. Accepts 4 to 20 mADC signals. Supports HART communication per channel. Ideal for DCS and PLC systems in process automation. Yokogawa proven reliability.
Technical Specifications
| Input Channels | 16, non-isolated |
| Signal Range | 4 to 20 mADC |
| Allowable Input | 27 mA max |
| Input Resistance (Power ON) | 400 Ω @20mA to 1000 Ω @4mA |
| Input Resistance (Power OFF) | ≥500 kΩ |
| Accuracy | ±16 μA |
| Data Update Period | 10 ms |
| Step Response Time | 100 ms |
| Transmitter Supply | 14.8 V (min @20mA) to 26.4 V (max @0mA), current limit 27mA |
| 2-wire / 4-wire Setting | Per channel via setting pin |
| Temp. Drift | ±16 μA / 10°C |
| Current Consumption | 310 mA (5V DC), 450 mA (24V DC) |
| Weight | 0.2 kg |
| HART Communication | Available (per channel) |
| External Connection | Pressure clamp, KS cable, MIL connector |
Brand: Yokogawa | Model: AAI141-H50/K4A00 | Type: Analog Input Module, 4-20mA, 16-ch, Non-Isolated with HART
Key Features & Diagnostic Capability
- HART communication per channel – easy digital diagnostics and configuration.
- High-speed response: 10 ms update, 100 ms step response.
- Wide ambient tolerance: drift ±16 μA/10°C ensures stable readings.
- Built-in transmitter power supports 2-wire or 4-wire (selectable per channel).
- Input protection: 27 mA current limit, power-off resistance ≥500 kΩ.
- Diagnostic: real-time signal monitoring, open/short detection via HART.
- Noise immunity: designed for harsh industrial environments.
Installation, Maintenance & Compatibility
- Installation: Pressure clamp terminal, KS cable adapter (K4A00), or MIL connector.
- Maintenance: Easy access to setting pins; no special tools required.
- Compatibility: Directly fits Yokogawa DCS, CENTUM VP, and Modicon Quantum with adapter.
- Certification: No explosion protection (suffix 5); basic type (suffix 0).
Package Contents & Warranty
- AAI141-H50/K4A00 module (1 unit)
- KS Cable Interface Adapter (K4A00 included)
- Quick start guide
- 12-month warranty against manufacturing defects.
Typical Applications
- Process monitoring in oil & gas, chemical, power plants.
- PLC/DCS analog input expansion for 4-20 mA field devices.
- Retrofit and upgrade projects for legacy control systems.
- HART-enabled smart transmitter integration.
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spare parts.
- Global shipment via FedEx, UPS, DHL – fast and tracked.
- Tested surplus and refurbished options available.
- 12-month warranty on all products.
- Technical verification prior to shipment.
- Expert support for obsolete control systems.
FAQ – Quick Answers
- Q: Is this module isolated? No, non-isolated 16-channel.
- Q: Does it support HART on all channels? Yes, each channel individually.
- Q: What is the response time? 10 ms update, 100 ms step.
- Q: Can I use with 2-wire transmitters? Yes, per-channel pin setting.
- Q: What cable is included? Comes with KS Cable Interface Adapter (K4A00).
Shipping & Contact
Ship worldwide with FedEx, UPS, DHL. For inquiries: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp).
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