AAI141-S00/K400 Yokogawa CENTUM VP Analog Input Module
Manufacturer: Yokogawa
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Part Number: AAI141-S00/k400
Condition：New with Original Package
Product Type: Analog Input Modules
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Yokogawa AAI141-S00/K400 Analog Input Module
Configured for high-density 16-channel analog current signal acquisition in Yokogawa CENTUM VP systems, the Yokogawa AAI141-S00/K400 (AAI141 Analog Input Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
| Code | Type | Description |
|---|---|---|
| AAI141 | Base Model | Analog Input Module (4 to 20 mA, 16-channel, Non-Isolated) |
| -S | Type Code | Standard Type |
| 0 | Hardware Option | Basic Type (No explosion protection) |
| 0 | Environmental Option | Basic Type |
| /K400 | Option Code | KS Cable Interface Adapter Option (ATK4A-00) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAI141-S00/K400 |
| Brand | Yokogawa Electric Corporation |
| Origin | Standard Manufacturer Sourcing |
| Weight | 0.2 kg |
| Dimensions | Standard Yokogawa FIO Module Chassis Dimensions |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | Approx. 310 mA at 5 VDC, 450 mA at 24 VDC (Max. 2 W) |
| Input Configuration | 16 channels, non-isolated |
| Input Signal Range | 4 to 20 mA DC |
| Measurement Accuracy | +/-16 uA (+/-0.1% of full scale) |
| A/D Resolution | 16 bits |
| Data Update Period | 10 ms |
| Conversion Time | 2 ms |
| Allowable Input Current | 27 mA max. |
| Input Resistance (Power ON) | 400 ohm at 20 mA to 1 kohm at 4 mA |
| Input Resistance (Power OFF) | 500 kohm or greater |
| Transmitter Power Supply | >= 14.8 VDC at 20 mA, <= 26.4 VDC at 0 mA |
| Connection Option | ATK4A-00 KS Cable Interface Adapter |
Process Control & DCS Instrumentation
The module processes 16 non-isolated 4 to 20 mA current loops across an internal 10 ms data update period, converting analog process variables into 16-bit digital values. Built-in transmitter power circuitry supplies field instruments with a minimum terminal voltage of 14.8 VDC at 20 mA, capped by an active current-limiting threshold of 27 mA. When the node chassis loses operating power, input resistance shifts to 500 kohm or greater to maintain electrical isolation across attached field loops.
Frequently Asked Questions
Q: How does the non-isolated channel architecture affect field signal wiring?
A: All 16 input channels share a common internal signal ground reference, requiring connected 2-wire and 4-wire field transmitters to operate on equal ground potential to prevent loop current distortion.
Q: What interface connection does the /K400 option code supply?
A: The /K400 option mounts an ATK4A-00 adapter to the module front faceplate, establishing a direct connection point for prefabricated multi-core KS interface cables.
Field Installation Guidelines
Insert the module into the designated slot of the FIO node chassis along the plastic guide rails until the rear header seats into the backplane bus. Hand-tighten the top and bottom panel retention screws to secure mechanical alignment and establish chassis grounding connections.
Latching fasteners secure the multi-core KS cable to the front ATK4A-00 adapter. Route input cabling through dedicated low-voltage wireways, maintaining a minimum clearance of 200 mm from three-phase AC power lines. Connect cable shielding to the main cabinet grounding bus at a single ground point to suppress high-frequency electrical noise.