Yokogawa AAI143-S53 Analog Input Module (Current Input)
A analog input module for Yokogawa systems — the AAI143-S53 handles Number of Input Channels: 16, isolated | Input Signal: 4 to 20 mA | Allowable Input Current: 24 mA. Factory-sealed, tested on live rack with 48-hour burn-in. Ships today from Shenzhen. 12-month warranty.
Technical Specifications
| analog I/O modules | (with HART communication function) communicate with field devices and store analog data and HART variables in the Input/Output image area in the communication module. |
|---|---|
| Model | AAI143 |
| Number of Input Channels | 16, isolated |
| Input Signal | 4 to 20 mA |
| Allowable Input Current | 24 mA |
| Withstanding Voltage (Between Input and System) | 1500 V AC, for 1 minute |
| Input Resistance (Power OFF) | 500 kΩ or larger |
| Accuracy | ±16 µA |
| Data Update Period | 10 ms |
| Setting of 2-wire or 4-wire Transmitter | For each channel by setting pin |
| Drift due to Ambient Temperature Change | ±16 µA/10˚C |
| Weight | 0.3 kg |
| External Communication | Pressure clamp terminal, MIL connector cable, dedicated cable (KS1) |
| HART Communication | Available |
| Manufacturer | Yokogawa |
| Model / SKU | AAI143-S53 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
Understanding the Yokogawa AAI143-S53
If you maintain Yokogawa systems, you know that not all replacement parts are created equal. The AAI143-S53 is a analog input module engineered specifically for Yokogawa automation platforms. The aftermarket is flooded with modules that look identical on the outside but use inferior components internally. model: AAI143; number of input channels: 16, isolated; input signal: 4 to 20 mA; allowable input current: 24 mA. We have tested clone modules side-by-side with genuine Yokogawa units — the clones typically fail within 3–6 months in continuous industrial service, sometimes taking out the backplane with them.
Every AAI143-S53 we sell is 100% genuine Yokogawa, with the manufacturer serial number and holographic label intact. We source from authorized distribution channels and decommissioned system tear-downs with full traceability documentation.
Before inserting this module, power down the chassis completely. Yokogawa modules are generally not hot-swappable. Verify backplane voltage with a calibrated multimeter before insertion. After installation, power up and verify the status LED shows normal operation before returning the system to service. Run the manufacturer diagnostic routine if available.
Compatible Parts — Same System
These modules share the same system family as the AAI143-S53. Commonly ordered together for complete rack builds or spare parts kits.
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