56-101-01175 Revision H Page | 59
5. If a different ROC rate is required, select ROC touch zone, the keypad screen will be
displayed with the “ROC = ft” parameter indicated.
6. Enter the desired ROC “Vertical Speed”.
7. Touch ALT zone A key pad screen appears. Input the desired altitude value required
for the leak test altitude. Touch “Enter”.
8. The Test Set and aircraft / instruments will begin moving towards this altitude at the
VSI rate entered.
9. Allow Test Set to stabilize at Target values for a minimum of 10 seconds before
selecting Leak Measure mode.
10. In Leak Measure mode, select Leak Testing from the main menu.
11. Select Leak Rate Timer.
12. If required, set the Wait time and Leak time to the values required.
1.
Note: The default values are Wait=1:00 minute and Leak=1:00 minute for CAS
airspeed and low altitude (typ < 10,000 ft). For High ALT (typ > 10,000 ft)
additional wait time is recommended (Wait=5:00) or more may be required to
allow the adiabatic to settle so the leak measurement will represent the actual
leak rate.
Note: The DPS1000 is capable of conducting a combined Pitot and Static test (as
described above) or individual system leak tests. To accomplish a single
channel (Pitot only or Static only) modify the procedures by simply not
entering Target value for the parameter / channel. For example, for Pt only
Leak check, the ALT target would remain at ambient Ground pressure
altitude while the CAS Target would be set at the desired CAS airspeed
value.
In this example, if the Test Set STATIC (Ps) channel is not already at ambient
“Ground” pressure, perform a “Go To Ground” function first, then set CAS
Target to desired airspeed.
13. If additional Leak Test at other altitudes or airspeeds is required, repeat steps (1)
through (12) above for any additional test points.
14. Once Leak Test is completed, select the Go To Ground function to return the
DPS1000 to ground ambient pressure.
15. When Test Set and aircraft have reached ambient Ground pressure the pumps will
be powered off and the Test Set will remain Vented to ambient until the Control
mode is selected.
To Next Page
Loading...
