Baker Hughes Druck DPI 610A, Instruction Manual

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Copyright 1998 Baker Hughes Company.
12 | DPI610A Instruction Manual–English
• Select AIRSPEED LEAK TEST:
• If necessary, SELECT AERO UNITS:
2.4.1 Method
1. Connect the instrument to the pitot system as shown in Figure 4. Ensure that the static
system is vented to atmosphere before starting the test.
2. Close the release valve and manual let-down valve and, using the hand-pump, generate the
required airspeed.
3. Set WAIT and DURATION of leak test times:
4. When ready, press the RUN key (F2):
Note: 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).
SELECT TASK
SELECT TASK
ALTITUDE
SWITCH
TEST
LEAK TEST
AIRSPEED
SWITCH
TEST
LEAK TEST
SELECT AERO
UNITS
kts/min
km/hr/min
mls/hr/min
SELECT UNITS
INPUT
RUN CHANGE
VALUE
AIRSPEED
WAIT
60
secs
DURATION 60 secs
START SPEED kts
STOP SPEED kts
SPEED CHANGE kts
LEAK RATE kts/m
kts
kts
kts
RUN CHANGE
VALUE
AIRSPEED
WAIT
60
secs
DURATION 60 secs
START SPEED kts
STOP SPEED kts
SPEED CHANGE kts
LEAK RATE kts/m
SET WAIT TIME
SET DURATION
RUN CHANGE
VALUE
AIRSPEED
WAIT 60 secs
DURATION
60
secs
START SPEED kts
STOP SPEED kts
SPEED CHANGE kts
LEAK RATE kts/m
kts kts
TIMING
kts
WAITING
AIRSPEED AIRSPEED
STOP STOP
RUN
CHANGE
VALUE
AIRSPEED
WAIT 60 secs
DURATION
60
secs
START SPEED 354 kts
STOP SPEED 322 kts
SPEED CHANGE -32 kts
LEAK RATE -32 kts/m