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Figure 52
Leak Test Profile: Parameters Screen
5. From the
UI main menu, touch to select “Leak Testing.” A panel appears with two
options: “Leak Rate Timer and ATP Leak Test Profiles (refer to Figure 50).
a)
Touch “ATP Leak Test Profiles.” The ATP Leak Test Profiles screen appears with
three options.
b)
Touch “ATP Select Leak Test Profile(s).” The Select ATP leak test control screen
appears displaying the following: Default, Test Set Only and Test Set with Hoses.
c)
Touch “Test Set Only.” The Test Set Only control screen appears.
d)
Touch “Test Set with Hoses.” The Test Set with Hoses control screen appears.
6. On
the “Test Set Only” and “Test Set with Hoses” screens, the unit performs a combined
Pitot and Static leak test in the following order:
a) Pitot (Pt channel) Leak Test (default = 200.0 kts) while Static (Ps) channel remains at
ground “ambient” pressure. If the Static (Ps) channel is not presently at ground, the
ATP will automatically perform a Go To Ground function before starting the Pitot (Pt)
channel leak test.
b) Static (Ps) channel low level (default = 5,000 ft)
c) Static (Ps) channel high ALT (default = 20,000 ft)
Note:
Both ATP Leak Test Profiles can be altered by the user. Once they have
been altered, they can be saved. However, a different profile name will be
required.
Note:
•
“Test Set-only” implies that no aircraft or instrument(s) are connected.
•
“Test Set with hoses” implies the Test Set has the hoses attached and
capped off so the test result represents the base line leak rate for all
components except the aircraft or instruments about to be tested.
•
It is highly recommended to complete at least
the “Test Set with Hoses”
leak test before proceeding to the aircraft or instrument.