barfield 101-01180, Инструкция по эксплуатации

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INSTRUCTION MANUAL
DPS400
56-101-01180-C 1-4
Page 23
November 5, 2003
The following flowchart (
Figure 11
) shows the sequence of menus needed to display the
firmware version:
MAIN
MENU
PARAMETER
MENU
MENU
NOTE: F4 Button Returns Display to the Previous
MAINTENANCE
MENU
ADDITIONAL
MENUS
LEVEL #1 MENU
FIRMWARE VERSION
DISPLAY
F3 F1 F3 F1
FIRMWARE FLOWCHART
Figure 11
3. LEAK CHECKING THE TESTER
Each Test Set is completely calibrated and tested before shipment, but to ensure the integrity of
the sensitive tests to be made, the pretests of this section should be performed immediately
before each use of the DPS400.
A.
Preliminary Setup
(1) Initial Valve Position for Test Set Leak Check
(a) Leak Test Closed
(b) Rate Control/Leak Test Closed
(c) Pitot Vent Open
(d) Static Vent Open
(e) Pitot Control
≈
100 knots
(f) Static Control
≈
Field Elevation
Note : Do not over tighten the valves. A light pressure is necessary to completely
open or close the valves supplied with the DPS400 or other Barfield Pitot-
Static testers.
(2) Insure hoses are connected to the PITOT port and STATIC port of the test set and
that the hose connections make a good seal. If the connectors on the aircraft side of
the hoses are not quick disconnect or self-sealing, then a tight sealing plug should be
used to seal the hose assembly. This is necessary to test the leakage of the hoses
as well as the tester. This is the ideal leak test to determine the condition of the tester
and hoses together. If a sealing plug is not available, then leak test the DPS400
without the hoses connected.
(3)
If not already connected, connect the power cable, the STATIC (blue band) hose and
PITOT (red band) hose to the test set.
Note: The quick connect ports on the test set and mating hoses are color-coded
and keyed to help prevent accidental crossing of Pitot and Static hoses.