GE Druck DPI 610 User Manual page 11

(4) When ready, press the RUN key (F2):
Initially, the WAIT period counts-down, followed by the TIMING period. The START
ALT is recorded as soon as the timing period starts. At the end of the test the
display shows the complete details of the test.
(5) Record the displayed operating data.
(6) To perform another leak test, use the hand-pump to generate a new system
altitude and press RUN (F2) again.
(7) On completion of the test, allow the altitude to decrease until it is below 1500 ft.
(8) Slowly open the manual let-down valve to return the system to ground level.
(9) To exit or cancel leak test mode, press TASK.
7 K0237 Issue No. 2