3. OPERATION
Page 43
© 2007 DH Instruments, a Fluke Company
If
<2Timer>
is selected, a timer is started at each point when a pressure
Ready
condition is achieved (see Section 3.2.3). 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 display is:
1. Indication of minimum and maximum
pressure included in the sequence which is
about to run.
ENTER to run MPa g
0.000 to 50.000
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). 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.
8.232 MPa g IH
T 10.000 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 completed.
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, PPCH-G 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.
To interrupt the sequence at any time,
press
[ESC]
. Pressure control ceases
immediately and the display goes to:
Abort Quick AutoTest
1no 2yes
Select
<2yes>
to cause the sequence to abort and return to the MAIN RUN
screen. Select
<1no>
to cause the sequence to resume where it left off.
All Quick Sequences end with a VENT command after the last point. To avoid
the VENT, press [ESC] rather than [ENT] after the last point.
