Operating Procedures
© 2015 General Electric Company – All rights reserved. ADTS 405 Mk2 Instruction Manual-English | 29
3.5.3 Leak Measure
a. Press LEAK MEASURE/CONTROL to return to Leak Measure mode.
b. Press RATE TIMER, F3 - [Wait 05:00, Time 01:00].
Note: Different wait and time periods can be selected by pressing F1 or F2.
c. Wait until rate timer has completed and the results displayed.
d. Check rate of climb is less than ±100 ft/min and rate of airspeed (CAS) is less than ±1 kt.
e. Press LEAK MEASURE/CONTROL to return to Control mode.
f. Press GROUND, F1, [Go to Ground].
g. Wait until for the display shows “Safe At Ground”.
3.5.3.1 ADTS 405 Leak Test
It is important to check that the ADTS 405 and the connecting equipment does not leak.
a. Before use a leak check should be carried out as follows:
b. Connect the pitot and static hoses (to front panel of ADTS 405F).
c. Temporarily seal the free ends of the hoses.
d. Set the display to dual display, see 3.9, Display.
e. Set the units to feet and knots, see 3.13, Changing the Units.
f. Using the SETUP menu, choose the limits set for the aircraft or UUT, see 3.14, Limit
Checking.
i. Press SETUP, [LIMITS], and [NEXT] until required wait is shown/set.
ii. Press [SEL] to save and then press CLEAR/QUIT until the main pressure screen
shown below is displayed.
Note: The numeric value of the parameters displayed change with each power-
up sequence. The amount of change depends on local atmospheric pressure
conditions at the time of power-up.
g. Press the LEAK MEASURE/CONTROL key to turn on the pressure controllers.
ALT 125 ft
Leak Measure
CAS 0.0 kts
Leak Measure WARMUP
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