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Figure 26
Hold
Mode (Select “Resume”)
Note:
The Hold feature does not place a STOP to the ALT and CAS values displayed.
Since the ALT and CAS values are in transition with some ROC and RtCAS, the
PCM controller requires some response time to reach the new temporary
Target.
When “Resume” is selected, the original target ALT and CAS values will
reload.
10. While in Leak Measure mode, there are no Target value(s) displayed because the
internal controller is off; the unit is simply measuring the aeronautical or pressure at
the Static (Ps) and Pitot (Pt) ports. The displayed parameters, ROC and RtCAS,
provide a relative but noisy, instantaneous leak rate indication. The touch screen is not
active for any of the 4 or 2-parameter screen layouts. Only the right-half Main Menu
and submenu page(s) of the screen and Leak Measure mode and the Contro
l
mode
soft-keys are active (refer to Figure 27).
Leak Testing - There are two types of leak tests supported on the Test Set: (1) the
traditional leak testing using the Leak Rate Timer and (2) the Automatic Test Process
(ATP) Leak Test Profiles (refer to Figure 32). Refer to
D. Leak Testing
on page 31 to
understand the two methods the unit provides for measuring Leak Rate accurately.
Figure 27
Target Value Keypad Screen