Baker Hughes Druck DPI 610A, Instruction Manual

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Copyright 1998 Baker Hughes Company.
10 | DPI610A Instruction Manual–English
• Select AIRSPEED SWITCH TEST:
• If necessary, SELECT AERO UNITS:
2.3.1 Method (Accessible Switch Contacts)
1. Connect the instrument to the pitot system and connect the airspeed switch as shown.
Ensure that the static system is vented to atmosphere before starting the test.
Note: Contacts must be potential free.
Figure 4: Airspeed Switch Test Connections
2. Ensure that positive pressure is selected and close the release valve.
3. Close the manual let-down valve.
4. Zero the airspeed reading by pressing the ZERO key.
SELECT TASK
SELECT TASK
ALTITUDE
SWITCH
TEST
LEAK TEST
AIRSPEED
SWITCH TEST
LEAK TEST
INPUT
SWITCH TEST
CONTACT STATE
AIRSPEED
RUN
SELECT UNITS
SELECT AERO
UNITS
kts
kmh
mph
AIRSPEED
kts
F2 F1
P
S
Select
Positive (+)
Pressure
Applied Pitot System Pressure
Vented Pitot System
(Atmospheric Pressure)
Airspeed Switch
SWITCH TEST
CONTACT STATE
RUN