barfield 101-01180, Инструкция по эксплуатации

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INSTRUCTION MANUAL
DPS400
56-101-01180-C 1-4
Page 32
November 5, 2003
Static Vent Open
Pitot Control
≈
100 knots
Static Control
≈
Field Elevation
Caution: Before pressurizing the aircraft Pitot and/or Static systems
insure Limit Protection is ENABLED and the Airspeed & Mach
limits are set to the appropriate values. Make sure that the
aircraft instrument limits are not exceeded.
(b) Close the STATIC and PITOT vents.
Caution: Do not use unnecessary force to adjust any test set valve.
Positive stop spacers have been installed on all needle valves to
permit firm closing of the valves without damage. However,
excessive force can overcome the knob set screw resulting in
valve damage. The same caution applies when using the knob
on the pressure regulators.
(c)
Slowly open the LEAK TEST valve. Verify the airspeed increases to
approximately 100 knots. (Set PITOT CONTROL at 100 knots).
(d)
When near the 100 knots airspeed, open the LEAK TEST valve fully to allow
the differential regulator to maintain the airspeed at its present level.
Note: Disregard the test set airspeed indications during these tests.
Note: The Pitot LEAK TEST valve is opened to control the test set
pressures and protect the airspeed indicator from negative airspeed
conditions.
(e)
Turn the STATIC CONTROL knob to the required altitude (typically 20,000
feet).
(f) Taking care not to exceed the programmed limit of VSI and altitude, slowly
open the static RATE CONTROL/LEAK TEST valve until close to the desired
altitude, then open the static RATE CONTROL/LEAK TEST valve fully and
adjust STATIC CONTROL as required to trim to the desired altitude (typically
20,000 Ft).
(g)
Close the static RATE CONTROL/LEAK TEST valve fully.
(h)
Do the Static Leak Test following the instructions for the Tester Static Leak
test.