The TESTER is a computer assisted system used to bench test ignition exciters for the F100, T56, and TF39 engines. The TESTER, composed of several sub assemblies, is a stand-alone configuration for use in a controlled environment facility.
The TESTER provides automatic functional testing, fault detection, and fault isolation down to the component level within the UUT. It also provides manual and computer assisted operation of all relays, power sources, and measurement equipment. The TESTER components are housed in a standard 19" rack and adjacent work station bolted together and mounted on lockable casters. The entire assembly will roll through a standard 34" door.
The TESTER measures results produced by the UUT or component under test using subassemblies such as the oscilloscope, picoammeter, digital multimeter, or outputs from the power supplies. Results are logged for reports and/or archiving.
The TESTER can route stimulus sources such as 0 to 350 VAC power at 40 to 10,000Hz; 0 to 60 VDC up to 18 AMPS; 0 to 10,000 VDC up to 50ma; as well as various size pulses to the UUT and component test area.
Automatic Mode, which provides computer control of the test procedure, is initiated from the main menu displayed on the CRT. The operator is instructed how to connect the test leads and prompted for any required intervention. Automatic Mode provides operator selected options for single stepping, diagnostic messages, pausing between tests, repeat test, and cancel test.
Manual Mode, operation of the TESTER without computer assistance, is primarily used for maintenance purposes.
Computer Assisted Mode
The TESTER software provides many diagnostic and utility routines. Utilizing these routines during Manual Mode operations provides maintenance personnel with a variety of tools for trouble shooting all TESTER programmable equipment and test leads routing paths.