Configured for high-precision signal acquisition in process control networks, the YOKOGAWA AAI141-S00/K400 (AAI141-S00 Analog Input Module) provides direct physical electrical execution for analog-to-digital signal conversion.

Suffix Breakdown & Model Matrix

• AAI141-S00: Base analog input module designation for current-based signal processing.
• K400: Specification suffix indicating a calibrated input range of 4-20 mA.

Hardware Specifications

DCS Process Control Integration

The AAI141-S00/K400 module incorporates input-to-output and power-level isolation to prevent ground loop interference within the DCS instrumentation architecture. It is engineered to maintain high-accuracy data conversion, supporting standard 4-20 mA current loop integration for field transmitters and sensors. The internal circuitry is optimized to suppress noise, ensuring that digitized process values remain stable under the electromagnetic conditions prevalent in industrial manufacturing and factory automation environments.

Frequently Asked Questions

Q: Does this module support hot-swapping?

A: The module is designed for standard industrial rack-mount maintenance; verify backplane compatibility and system-level fail-safe requirements before attempting module replacement in an energized state.

Q: What is the primary function of the K400 suffix?

A: The K400 suffix designates the module as calibrated for a 4-20 mA current input range, ensuring the internal signal conditioning circuitry is optimized for this specific electrical loop protocol.

Field Installation Guidelines

1. Verify that system power is isolated before mounting the module to the backplane.
2. Align the module with the cabinet backplane guide rails, ensuring the connector pins seat squarely before engaging the locking mechanism.
3. Tighten the front-panel mounting screws to ensure the module chassis achieves a low-impedance bond with the grounded system enclosure to mitigate EMI.
4. Verify all wiring terminal connections are torqued to manufacturer specifications to ensure signal integrity and prevent resistive heating.
5. Maintain the module within the rated operational temperature range of -20 to 60 deg C to ensure specified accuracy and prevent thermal drift.