31
BÜCHI
Vacuum Controller
V-800/V-805
8.8.3
Possible interventions into the regulating
process
Increase the system pressure or interrupt pressure drop in
the start phase
ð
[P
é
]
. he apparatus goes into the hold
mode and regulates further to the actual value. If necessary,
the apparatus is partially ventilated.
[ESC]
puts back into
the
RUN
mode with the original set point.
[OK]
puts back
into the
RUN
mode with the new set point. Use
[AUTO]
to put distillation back into the automatic mode.
Change into the manual mode
ð
[MAN]
. Now, distillation
can be continued manually (for example, if the distillation is
too slow). You can change back to the automatic mode
at any time.
8.9
Distillation at constant vapour temperature
(Mode TEMPERATURE)
8.9.1
Performing temperature distillation
Choose the temperature mode (if it is not already active)
[MENU]
ð
[MODE]
ð
[TEMPERATURE]
Now, the controller is ready and you can use
[RUN]
to start it.
[STOP]
ends the distillation and ventilates the apparatus
(unless configured otherwise).
8 Operation V-805
