Barfield 101-00876 Probe Adapter Cable for Dash 8 Q400 Aircraft

The Barfield 101-00876 Fuel Probe Adapter Cable connects the Dash 8 Q400 aircraft’s fuel quantity probes to the Barfield DC400A Fuel Quantity Test Set. It provides a reliable electrical link between the probes and the test equipment, enabling accurate testing, calibration, and troubleshooting of the aircraft’s fuel system. This cable is an essential component for maintaining accurate fuel level indications and ensuring system integrity.

The 101-00876 adapter cable is specifically designed for use with the De Havilland DHC-8 (Dash 8) Q400 Series aircraft. It is compatible when used with a modified 101-00808 DC400A adapter module, forming part of Barfield’s dedicated Dash 8 fuel quantity test configuration. This ensures proper interface alignment for the Dash 8 Q400’s unique fuel system architecture.

This cable is designed for use with the Barfield DC400A Digital Fuel Quantity Test Set and the modified 101-00808 adapter module. Together, they allow technicians to test fuel tank probes, wiring, and indicators with high precision. This combination provides the necessary calibration accuracy required by Dash 8 Q400 maintenance manuals.

Yes. The 101-00876 cable is included in the Barfield DHC-8 Fuel Quantity Kit (102-00876), which contains the DC400A test set, the 101-00808 adapter module, the 101-00874 system adapter cable, and the 194-00051 protective case. This all-in-one configuration enables maintenance teams to perform comprehensive fuel system testing efficiently on Dash 8 Q400 aircraft.

Both cables are used for testing the Dash 8 Q400 fuel quantity system, but serve distinct functions. The 101-00874 acts as the system adapter cable, linking the test set to the aircraft system as a whole, while the 101-00876 is the probes adapter cable, connecting directly to the individual fuel probes. Together, they form a complete test configuration for accurate calibration results.

No, this cable is specifically configured for the Dash 8 Q400 Series and is not interchangeable with adapters for other aircraft. Each Barfield adapter cable is engineered to match the connector types, signal routing, and capacitance parameters of specific aircraft models. Using the wrong adapter could produce incorrect readings or damage the system.

Technicians should visually inspect the cable for connector integrity, insulation damage, and continuity before each use. Barfield recommends periodic electrical continuity testing and visual verification as part of the calibration cycle for the associated test set. Proper maintenance helps prevent false readings and ensures long-term accuracy.

The adapter cable itself does not require calibration because it serves as a passive connection device. However, it should be tested during the DC400A test set’s annual calibration verification to confirm that it meets Barfield’s performance specifications. Any cable showing resistance deviations or connector wear should be replaced or serviced by an authorized Barfield repair center.

Before connecting the 101-00876 cable, ensure that all aircraft fuel quantity circuit breakers are open and that power remains off during setup. Follow De Havilland’s maintenance procedures for safe grounding and defueling to prevent electrical hazards. Secure the cable connectors firmly to maintain consistent signal contact throughout the test.

Minor connector or continuity issues may be serviceable, but only Barfield-approved repair facilities are authorized to perform such maintenance. Unauthorized repairs can alter the cable’s impedance or shielding performance, resulting in inaccurate test results. Always refer to Barfield’s service documentation for repair and recertification procedures.