GE Druck DPI 610 User Manual page 15

(3) Set WAIT and DURATION of leak test times:
(4) When ready, press the RUN key (F2):
Initially, the WAIT period counts down, followed by the timing period. The START
SPEED 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) Allow the airspeed to decrease until it is below 80 kts.
(7) Slowly open the manual let-down valve to return the system to zero (ground
level).
(8) To perform another leak test, use the hand-pump to generate a new airspeed
and press RUN (F2) again.
(9) To exit or cancel leak test mode, press TASK.
11 K0237 Issue No. 2