BCF Designs Ltd. DE8490 Automatic Fuel System Test Set The testing and validation of an aircraft’s fuel system is one essential part of the regular maintenance schedule. The BCF Designs Automatic Fuel System Test Set has been designed to be compatible with all aircraft types, and provides a fast, accurate and repeatable solution for the cost effective testing of aircraft fuel systems. The DE8490 Test Set is accessed and controlled via simple menu driven software specific to each aircraft type. This ensures that the testing protocol used is always consistent, which in turn allows the user to accurately diagnose any faults in the aircraft fuel system. The DE8490 automatically stores all the test data, which can subsequently be downloaded for review, fault and repair tracking. The equipment will test both AC and DC capacitance fuel systems. Depending upon aircraft test requirements the DE8490 can measure or simulate fuel quantity and consequently gauge accuracy. Connection to the aircraft is achieved via existing lead sets and a multi-pin connector, or by using the supplied co-axial cables. An adaptor interface cable can also be supplied if required to match any other existing connector and harness construction. The Test Set is self-calibrating using highly accurate and stable in-built capacitors. It can be powered from any mains AC supply, aircraft DC supply or by using the rechargeable internal battery. Specifically designed as rugged, portable ground support equipment for use at operational level, the Fuel System Test Set provides the user with a simple, efficient and reliable maintenance tool.