PPC2 AF OPERATION AND MAINTENANCE MANUAL
© 1998 DH Instruments, Inc. Page 30
When 2No is selected from the Run Current Quick Sequence menu, the set-
up/edit routine is accessed. The first display is:
1. Entry field for sequence full scale value.
Recalls last entered value.
Enter sequence FS
100 psi a
This entry determines the maximum pressure (furthest from zero) of the quick
pressure sequence. Enter the desired sequence maximum pressure and press
ENTER.
Sequence FS must be less than the pressure upper limit of the currently
active pressure range (see Section 3.2.4).
The next display is:
1. Entry field for sequence pressure increment in
% of full scale. Recalls last entered value.
Enter sequence FS
increment 20 % FS
This selection determines the size of the pressure increment in terms of % of the
full scale (FS) value entered in the previous screen. The sequence will be
between zero and full scale in pressure steps of (full scale x increment %) starting
from zero and ending with the uneven increment if applicable. Enter the desired
pressure increment and press ENTER.
The next display is:
Increment order?
1Up 2Down 3Both
This selection determines the order in which the sequence increments will
execute. 1Up will cause the sequence to execute between zero and the full scale
value. 2Down will cause the sequence to execute between the full scale value
and zero. 3Both will cause the sequence to execute from zero to full scale and
back to zero.
After making the increment order
selection the next display is:
Next increment on?
1Enter 2Timer
This selection determines when, during running of the sequence, the pressure
target value will change to the next value in the sequence. If 1ENTER is
selected, the sequence will proceed to the next target value when ENTER is
pressed. If 2Timer is selected, a timer will be started when a pressure ready
condition is reached (see Section 3.1.2.4) and the sequence will continue to the
next pressure control target value 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:
Run current quick
sequence 1Yes 2No
Select 1Yes to run the quick sequence that has just been set up/edited (see
Running a Quick Sequence below). Select 2No to setup/edit the current
sequence. Press ESCAPE to back out of the SEQ function if desired.
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