AAI143-H03 S1 Yokogawa CENTUM Analog Input Module
Manufacturer: Yokogawa
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Part Number: AAI143-H03 S1
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 AAI143-H03 S1 Analog Input Module
The Yokogawa AAI143-H03 S1, also cataloged as the AAI143 Analog Input Module, operates as a dedicated hardware component for 16-channel isolated current signal acquisition within Yokogawa CENTUM CS 3000 and VP FIO platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAI143-H03 S1 |
| Brand | Yokogawa Electric Corporation |
| Origin | Japan |
| Weight | 0.3 kg |
| Dimensions | 32 mm x 133 mm x 152 mm |
| Operating Temp | -20 to 70 deg C |
| Power Consumption | 230 mA at 5 VDC, 540 mA at 24 VDC |
| Input Signal Range | 4-20 mA DC (24 mA maximum allowable) |
| Channel Isolation | 16 channels, isolated from system (1500 VAC withstand for 1 minute) |
| Conversion Accuracy | +/-16 uA over operating range |
| Data Update Period | 10 ms |
| Conformal Coating | ISA Standard G3 compliant (-03 option) |
4-20 mA HART Loop & Channel Isolation Characteristics
Each channel on the input circuitry features dedicated galavanic isolation to eliminate ground loops and suppression network cross-talk across high-density field wiring trunks. Internal jumper pins allow channel-by-channel selection between 2-wire transmitter power loop drives (supplying >=19.0 VDC at 20 mA) and external 4-wire loop connections. Pass-through HART communication overlays bidirectionally across the analog current loops, maintaining digital device signal transmission to the CENTUM controller without disturbing the 10 ms analog data sampling cycle.
Frequently Asked Questions
Q: How do technicians configure individual channels on the module between 2-wire and 4-wire field transmitters?
A: Field engineers set hardware pin headers located directly on the module circuit board for each channel prior to insertion into the field interface unit.
Q: What power output limits apply when supplying field transmitters via 2-wire loop configurations?
A: The onboard transmitter power supply maintains >=19.0 VDC at 20 mA draw and limits total current output to 25 mA under short-circuit loop conditions.
Field Installation Guidelines
Mount the module directly into designated slots of the Yokogawa FIO node unit, ensuring the locking mechanisms click into place to ensure backplane grounding continuity. Technicians must verify signal cable connections using pressure-clamp terminal blocks or dedicated KS1/MIL connector cables before powering the rack. Route all 4-20 mA current loop wiring away from high-voltage AC power lines to prevent electromagnetic coupling.
Maintain field wiring shield terminations at the dedicated system earthing bar. Ensure cabinet ambient conditions remain within -20 to 70 deg C and verify that the ISA Standard G3 conformal coating remains free from mechanical scratches during installation in corrosive atmospheric environments.