Function Vacuulan - vacuubrand ME 4C NT VARIO Instructions For Use Manual

Function VACUULAN

➨ Optimised vacuum control for vacuum networks (e.g. VACUUBRAND VACUU•LAN)
• Operation on demand of a speed controlled pump (NT VARIO / VARIO-B)
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.
VACUULAN
Set vacuum 25 mbar
Switch on 200 mbar
Delay 15 min
- - - - - - Graphic - - - - - -
- - - - - - - Back - - - - - - -
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.
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.: 999164 / 19/05/2009
page 37 of 75
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VACUULAN 40 mbar
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