3. OPERATION
Page 37 © 2002-2007 DH Instruments, a Fluke Company
<3u&d> causes the sequence to run from zero to FS to zero to the low
pressure to zero. <4d&u> causes the sequence to run from zero to the low
pressure to zero to FS to zero.
After making the increment order selection
the display is:
Next point on:
1ENTER 2Timer
This selection determines how the sequence will proceed from point to point
when the test is run.
If <1ENTER> is selected, the sequence proceeds to the next target value
whenever, and only whenever, [ENT] is pressed.
If <2Timer> is selected, a timer is started each time a pressure Ready condition
is achieved (see Section 3.2.2). The sequence continues to the next pressure
point without operator intervention once the timer has expired. After selecting
<2Timer>, an additional screen is presented for entry of the timer value in
seconds (minimum 1, maximum 999).
After making the next increment on selection the next display is:
1. Indication of minimum and maximum
pressure included in the sequence which is
about to run.
ENTER to run kPa g
.000 to 700.000
This screen is offered for the user to check, prior to execution, that the correct
sequence is defined and that it does not exceed the range of the device or system
being tested. Pressing [ESC] returns to theAutoTest selection screen without
sequence execution. Pressing [ENT] causes sequence execution to proceed.
Pressure control begins to set the first target value of the sequence (or vent
executes if the first increment is zero gauge pressure). The display is the MAIN RUN
Screen with indication of the sequence progress:
1. Indication of sequence increment that is
currently being executed / total increments in
sequence. Changes to ENTER or countdown
time remaining once Ready condition has
been reached at target value.
117.232 kPa g IH
T 140.000 D 2/11
Except for the bottom right hand corner, the sequence run display is identical to
the normal MAIN RUN screen (see Section 3.1.1). The bottom right corner
provides information on sequence execution. This information updates as each
sequence increment is executed.
If the sequence was set up with <Next increment on timed delay>, execution
proceeds automatically each time a Ready condition has occurred at the
increment and the countdown timer has expired. If the sequence was set up with
<Next increment on ENTER>. Press [ENT] to continue to the next increment.
After the last point of the test sequence has been executed, PPC3 vents and
operation returns to the main run screen.
Regardless of whether the sequence was set up for next increment on time
delay or on ENTER, pressing [ENT] always causes the sequence to proceed
to the next increment. This feature can be used to skip one or several
increments if desired.
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