Vacuulan function – VACUUBRAND CVC 3000 detect User Manual

Page 44

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VACUULAN function

Optimizes vacuum control for vacuum networks

(e.g., VACUUBRAND VACUU•LAN) - pump control only with VMS

Preselections
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Use the selection knob to select the parameters.

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Set vacuum (the lower switch-off value): If the pressure drops below

the ”Set vacuum”, a time-meter starts to run. When the pressure ex-

ceeds the ”Set vacuum” pressure again, the time meter is reset. If the

Set vacuum” is not reached within 100 hours, the controller signals an

error.

The ”Set vacuum” is adjustable in the range of 1-795 Torr (1-1060

mbar).

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Switch on (the higher switching value): If the pressure exceeds this

pressure, pumping down starts again.

The ”Switch on” pressure is adjustable in the range of 2-795 Torr (2-

1060 mbar) (at the least 1 Torr (mbar) higher than the ”Set vacuum”).

In the event of a sudden high-pressure spike, pumping starts again

even if the ”Switch on” pressure has not been reached (pressure in-

crease control).

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Delay: If the vacuum is below ”Set vacuum” for longer than the ”Delay

time, the pump is stopped. Pumping starts again in the event of a 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” (”Off” means that the pump stops immediately when the pressure

drops below ”Set vacuum”.).

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