Rev:
1.00
Date:
08.01.2013
Page:
17 of 31
FTK100 FIELD TEST KIT
OPERATING MANUAL
Document-P/N:
FTK100-OM
© Aventech Research Inc. 2013. All Rights Reserved.
3.1.3 Pressure Test
This feature will perform a pressure test of all five pressure ports on the tip of the
air-data probe and the ring of static-pressure ports around its circumference.
This test can be performed only if the appropriate probe adapter is firmly secured
to the DUT and is connected to the FTK using the supplied tubing.
Immediately after the Pressure Test is selected, the internal pump will begin to
pressurize the system to approximately 3000Pa. If any leaks are present, as
would occur if the probe adapter is not properly in place, the pump will continue
to run until a timeout error is generated if the target pressure is not reached
within 6 seconds. If the no leaks occur, the pump will bring the system up to test
pressure in approximately 1 second. The following window will then be displayed:
Figure 11: Pressure Test Layout
After a 5 second settling period, valves will be activated to introduce the test
pressure to the AOA+ (ALPHA+) pressure port. The FTK100 will read the
pressure data sensed by the DUT across the CAN AERO connection and record
data from its own internal reference pressure sensor for a period of five seconds.
After this sampling period, the valves are switched to disconnect the AOA+ port
and return it to ambient atmospheric pressure, and simultaneously connect the
internal pressure plenum to the AOA- (ALPHA-) port. During the following 5
second settling period, the pump is given ability to re-engage and recharge the
plenum if necessary. If this occurs, a further 5s settling period is introduced
before data is collected from both the DUT and reference pressure sensor. This
process continues through all pressure ports in the following order: AOA+, AOA-,
AOS+ (BETA+), AOS- (BETA-), Pitot-Static. After data has been collected for the
pitot-static test, the valves switch to change the direction of air-flo w between the
pump and internal plenum so as to generate a vacuum. The pump runs and
takes the plenum pressure down to approximately 90kPa. The static pressure
