barfield 101-01180, Инструкция по эксплуатации

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INSTRUCTION MANUAL
DPS400
56-101-01180-C 1-4
Page 10
November 5, 2003
C. SETTING THE PROTECTION LIMITS
The protection limits feature of the DPS400 enable a technician to safeguard the sensitive
pressure sensing devices aboard the aircraft from damage. The protection limits shield the
aircraft from times when the technician could generate conditions of over pressurization,
excessive vertical speed, negative altitude, or excessive mach speed.
The DPS400 protective limits may also be disabled. The protective limits should always be
enabled when the test set is being used for aircraft testing, but can be disabled when leak
checking only the tester and hoses.
Note:
While leak checking the tester and hoses, the limits may be disabled because the
transducers used in the DPS400 are damage resistant. (The typical conditions that
cause damage to an aneroid instrument do not affect the DPS400 components.)
The following flowchart (Figure 8) shows the process through the menus needed to enable/disable
the protective limits feature.
ENABLE/DISABLE FLOWCHART
Figure 8
(1) Enable/Disable Protection Limits
The following procedures describe how to enable/disable or set values for the DPS400
protection limits.
(a) To begin enabling/disabling the limits, press the MENU pushbutton. The Main
menu appears:
M a in -M en u -
F 1 : D is p lay U n its
F 2 : L im its : S et, V ie w , E n ab le/D is ab le
F 3 : M a in ten an c e F 4 : -C a n c el-
F 1 F 2
L E A K
T E S T
IN C
F 3 F 4
C O N T R A S T
D E C
M E N U P U M P
F2 is used to set the protection limits for all parameters or to enable/disable limit
protection.
M AIN
M ENU
P AR AM ETER
DISPLAY
M ENU LIM ITS
M ENU
F2 F3
NOTE: F4 Button Returns Display to the Previous
F1
Return to
Param eter
Display
ENABLE/DIS ABLE
LIM ITS
Enable/
Disable