GE Druck ADTS 405 R/F Mk2 Instruction Manual page 40

Chapter 3. OPERATION
Leak measure mode (Timed average leak rate measurement)
Static channel altitude 5000 ft,
measure leak:
Set rate timer:
wait 05.00 miutes
test 01.00 minutes
RATE
TIMER
Note: Compressing a gas generates heat. Gas heated or cooled in an enclosed
volume causes a pressure change. It is important, especially for leak testing, to
allow enough time for the heated gas to cool and the pressure to stabilize.
When setting the rate timer consider three factors:
1. The volume of the system to be tested (large volumes take longer to stabilize).
2. The pressure change (the higher the change the greater heat generated).
3. The ambient air temperature.
22 | ADTS 405 Mk2 Instruction Manual-English
Alt
Leak Measure
WAIT
TIME
00:30
F1 00:00
F2 00:00 01:00
F3 05:00 01:00
Alt 4996
ft
Leak Measure
00:30/TIMING
Display shows alternating time
countdown and TIMING message
ROC
RtCAS
Timed Rates
5000
ft
4996
Alt
Leak Measure
04:36/WAITING
Display shows alternating wait time
countdown and WAITING message
-15.00T ft/m
Display
-1.97T kts/m
rate timer
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ft
shows
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