K114 Issue No. 9
3 - 12 Operation
3.8 Leak Testing the ADTS 405
It is important to check that the ADTS 405 and the connecting equipment does not
leak. Before use a leak check should be carried out as follows:
Connect the pitot and static hoses (to front panel of ADTS 405F). Temporarily seal the
free ends of the hoses.
Set the display to dual display, see 3.9.
Set the units to feet and knots, see 3.13.
Using the SETUP menu, choose the limits set for the aircraft or UUT, see 3.14.
Press SETUP, [LIMITS], and [NEXT] repeatedly to select the limit set from those
available.
Press [SEL] to save and then press CLEAR/QUIT repeatedly 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.
FIGURE 3-2 MAIN PRESSURE DISPLAY (LEAK MEASURE MODE)
Press the LEAK MEASURE/CONTROL key to turn on the pressure controllers.
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