Buchi Vacuum Controller V-855 Manuel d'utilisateur télécharger pdf (Page 19)

4 Description of function

19 V-850/855 Operation Manual, Version E

4.2.7 LabVac mode

The LabVac mode serves to control the pump within a laboratory vacuum system.

The pump operation is switched off when the vacuum has reached the lowest possible value and is

switched on again when the pressure increases by a preset value (hysteresis [dP]). The pump opera-

tion is also switched on, as soon as a load is present in the vacuum system.

When the menu button CONT. is pressed the pump operates in Continuous mode to obtain a vacuum

as low as possible independent of the connected load.

a Pump not running b Pump running

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Buchi Vacuum Controller V-855 Manuel d'utilisateur Page 19