28
BÜCHI
Vacuum Controller
V-800/V-805
8.6.2
Possible interventions in the regulating
process (gradient mode)
Increase the system pressure or interrupt pressure drop in
the start phase
ð
[P
é
]
. The apparatus goes into the
hold mode and regulates further to the actual value. If
necessary, the apparatus is partially ventilated.
[ESC]
it
puts back into the RUN mode with the original set point.
[OK]
puts it back into the
RU
N mode with the new set
point.
Holds program course
ð
[HOLD]
. The apparatus changes
into the hold mode and regulates further to the actual
value.
[GO]
sends the apparatus back into the RUN mode and
continues the program.
[SHOW]
displays the hold program and the actual time
graphically.
[MAN]
changes the apparatus into the manual mode.
8.6.3
Changing an existing program
(gradient mode)
Request the program to be changed from the memory (if
it is not already active)
[MENU]
ð
[MEMORY]
ð
[RECALL]
. Use
[OK]
to confirm desired program number.
Choose editing mode
[PROG]
ð
[EDIT]
Change desired value by overwriting as described in
preparing a new program (see 8.6.1).
After you have modified the program, store the program
(see 8.6.1).
8 Operation V-805
