56-101-01175 Revision H Page | 69
altitude difference (with aircraft / instruments higher than Test Set the value
would be entered as a (+) positive number).
10. At this time confirm the following has been accomplished:
The Test Set and hose combination have been leak tested
The Test Set hose(s) Static (Ps) and Pitot (Pt) has been connect to the aircraft or
instrument to be tested
The Test Set limits have been configured with the appropriate vales to protect the
aircraft system or instrument(s) about to be tested.
If required, the altitude correction value has been entered
11. Select the “Control” icon.
The Test Set will transitions from Leak Measure to Control mode. You will notice
the ALT and CAS target will be preloaded with the current pressure altitude and
CAS values.
Wait for Resuming Control phase to complete (typically 4 seconds).
12. Set the ROC Target value as specified by the AMM, CMM or AP “authorized
procedure”.
13. If required, set the value for RtCAS as specified by the AMM or CMM. The default
value is 300 kts/min
14. Set the ALT Target values and CAS Target values as specified by the AMM, CMM
procedures.
15. Continue with the next ALT Target value or CAS Target value as required
For test procedures requiring small step changes in ALT or CAS, there is a
“Nudge” feature available that will simplify having to enter multiple small
changes in Target values.
By touching the appropriate touch zone area “ALT”, “CAS”, “MACH” the Target
keypad will appear (only in Control mode). The value can be entered directly by
keypad or the Nudge key can be selected which will then provide the Nudge
function screen.
The “Nudge” key is located on the same pop-up keypad used for entering a new
Target value (See E 14).
The “Nudge” value can also be re-defined.
16. On completion, select the Go to Ground function and wait for the “Unit is Safe at
Ground” to be displayed.
17. This Completes the “Combine Testing of the Aircraft Pitot and Static System“.
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