INSTRUCTION MANUAL
DPS400
56-101-01180-C
1-4
Page 3
November 5, 2003
FUNCTION KEYS (F1, F2, F3, F4)
The LEAK TEST and MENU keys are functional under normal operation. Test set display
CONTRAST may be adjusted using the
F3
(decreasing) and
F4
(increasing) function keys
during normal operation. During power-up initialization or while in the MENU mode, the MENU
key must be pressed in while pressing
F3
or
F4
at the same time to adjust the contrast.
Certain functions (described below pushbuttons
F1
through
F4
) are only available when the
DPS400 is in MENU or LEAK TEST modes.
#
0 K ts
# X X X X X F t.
#
0 .0 0 M a c h
0 F t./m
P r o te c tio n : E n a b le d
F 1 : V ie w L im its
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
A.
PRELIMINARY
SETUP
(1)
Set tester as follows for initial valve positions for storage and initial power on.
(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
Pressing F1 displays
the maximum limits for
which the DPS400 is
currently programmed.
(Available when
Protection Limits are
enabled.)
Performs displayed F1
operation when in
Menu Mode.
Increases the display’s
contrast.
Performs displayed F4
operation when in Menu
Mode
Places the DPS400 in the
Menu Mode to change
Limits, Units or Perform
Calibration.
Places the DPS400
into the Leak Measure
Mode.
Performs displayed F2
operation when in
Menu Mode.
Decreases the
display’s
contrast.
Performs
displayed F3
operation
when in Menu
Mode
Turns internal
pressure/vacuum PUMP
ON/OFF. Only functions after
initialization is complete.