AAI141-S00/K4A00 Yokogawa CENTUM VP Analog Input Module
Manufacturer: Yokogawa
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Part Number: AAI141-S00/K4A00
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/K4A00 Analog Input Module
The Yokogawa AAI141-S00/K4A00, also cataloged as the AAI141 Analog Input Module, operates as a dedicated hardware component for 16-channel non-isolated 4-20 mA DC signal acquisition within Yokogawa CENTUM VP and FIO networks.
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 |
| /K4A00 | Option Code | With KS Cable Interface Adapter (Model: ATK4A-00) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAI141-S00/K4A00 |
| Brand | Yokogawa |
| Origin | Standard Manufacturer Sourcing |
| Weight | 0.2 kg |
| Dimensions | Standard Yokogawa FIO Module Dimensions |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 310 mA at 5 VDC, 450 mA at 24 VDC |
| Input Channels | 16 channels, non-isolated |
| Input Signal | 4 to 20 mA DC |
| Allowable Input Current | 27 mA max. |
| Input Resistance | 400 ohm at 20 mA to 1 kohm at 4 mA |
| Input Resistance (Power OFF) | 500 kohm or greater |
| Measurement Accuracy | +/-16 uA |
| Data Update Period | 10 ms |
| Step Response Time | Approx. 100 ms |
| Temperature Drift | +/-16 uA per 10 deg C |
| Transmitter Power Supply | >= 14.8 VDC at 20 mA, <= 26.4 VDC at 0 mA |
| Interface Adapter | ATK4A-00 KS Cable Interface Adapter |
Process Control & DCS Instrumentation
The module provides high-density signal acquisition for common-ground 4-20 mA loops, processing 16 analog channels into digital process values across a 10 ms update window. Internal power distribution circuits supply integrated loop power to 2-wire field transmitters with a guaranteed minimum terminal voltage of 14.8 VDC at 20 mA. Active current-limiting circuitry caps input overload conditions at 27 mA, while an unpowered input impedance exceeding 500 kohm maintains circuit integrity during node maintenance.
Frequently Asked Questions
Q: How does the non-isolated channel architecture affect loop wiring design on site?
A: All 16 channels share a common internal signal ground. Consequently, connected 2-wire transmitters or external loop power sources must operate on a unified reference potential to avoid cross-channel ground loops.
Q: What role does the /K4A00 option code play in field connectivity?
A: The /K4A00 option mounts an ATK4A-00 adapter onto the front interface of the module. This allows a standard pre-fabricated multi-core KS cable to plug directly into the module and route signals to external terminal units, such as the AEA4D, eliminating point-to-point discrete cabinet wiring.
Field Installation Guidelines
Align the module with the card guide rails of the designated FIO node chassis slot and slide it inward until the backplane bus header seats fully. Tighten the top and bottom panel retention screws to secure the physical assembly and verify cabinet frame grounding continuity.
Connect the KS multi-core interface cable securely to the front ATK4A-00 adapter using the integrated latching fasteners. Route signal lines through low-voltage ducting, maintaining a minimum clearance of 200 mm from three-phase AC cabling. Connect incoming cable shields to the cabinet ground bar at a single point to prevent high-frequency noise from corrupting measurement accuracy.