VACUUBRAND CVC 3000 - Manual (Page 35)

page 35 of 80
The screen-shot shows the factory-set values.
When selecting ”Graphic” the display shows a pressure vs. time curve.
The timeline in the diagram adapts automatically to the process time.
+
Press the selection knob twice to return to the standard display.
10 mbar
00:03:50
Pump down
Pump down
Speed
HI
Minimum Off
Delay Off
Duration Off
- - - - - - Graphic - - - - - -
- - - - - - - Back - - - - - - -
760 Torr
Temporary switching from ”Pump down” to ”Vac control” or ”Auto
mode” (only if control is running):
+
Press ”MODE” key. The controller switches to ”Vac control” function,
the current vacuum is used as set value.
+
Pressing ”MODE” key again switches to ”Auto mode” function. The
controller adapts the boiling pressure starting from the current vacuum
level.
+
The preset function of the controller does not change due to this tem-
porary switching. When pressing ”STOP” key, the controller is set
again to the ”Pump down” function.
Adapting the pumping speed during pump down:
+
Press the selection knob and turn.
+
Turning the knob to the left reduces the speed.
+
Turning the knob to the right increases the speed.
be set to ”Off”. ”Off” indicates that no endpoint for pump down is deter-
mined.
If a ”Duration” is preset, the controller switches off the pump when the
preset process time is reached, even if a preset ”Minimum” is still not
reached.
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If neither ”Minimum” nor ”Duration” is preset, process control has to be
stopped by pressing the ”STOP” key.