User guide

page 34 of 61
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999248 / 28/04/2011
VACUULAN
Set vacuum 25 mbar
Switch on 200 mbar
Delay 15 min
- - - - - - Graphic - - - - - -
-------Back-------
00:00:00
➨ Optimised vacuum control for vacuum networks
• Operation on demand of a speed controlled pump (VARIO)
Preselections
☞ Usetheselectionknobtoselecttheparameters.
☞ Set vacuum (lower switch-off value): If the pressure drops below the ”Set vacuum” a time-meter
startstorun;additionallythemotorspeedisreduced.Thetime-meterisreset,ifthepressureex-
ceeds the pressure value for switching on again (”Switch on”). If the ”Set vacuum” is not reached
within 100 hours the controller signals an error.
The ”Set vacuum” is adjustable in the range of 1 - 1060 mbar.
☞ Switch on:Ifthepressureexceedsthepressureforswitchingon,pumpingdownstartsagain.
The ”Switch on” pressure is adjustable in the range of 1 - 1060 mbar.
In case of sudden high pressure increase pumping starts again even if the ”Switch on” pressure has
not been not reached (pressure increase control).
☞ Delay: If the vacuum is below ”Set vacuum” for longer than the ”Delay” time, the pump is stopped.
The pumping down is started again in case of rapid pressure increase or if the ”Switch on” level is
exceeded.
The ”Delay” is adjustable in a range of 1-300 minutes or can be set to ”Off”.
The screen-shot shows the factory-set values.
When ”Graphic” is selected the display shows a pressure vs. time curve (right screen-shot).
The timeline in the diagram adapts automatically to the process time.
☞ Presstheselectionknobtwicetoreturntothestandarddisplay.
5.6 Function VACUULAN
VACUULAN 40 mbar
00:13:00