VACUUBRAND CVC 3000 E - Manual (Page 51)

page 51 of 75
Adjustment at atmospheric pressure
An adjustment at atmospheric pressure is only
possible in the upper pressure range.
➨
Vent the measurement connection of the VSP 3000 pressure trans-
ducer. Make sure that the measurement connection of the VSP 3000
is at atmospheric pressure. Allow the pressure transducer a period of
minimum 20 minutes to preheat at this pressure.
➨
In ”Configuration” menu, select program ”Adjustment” at the controller.
➨
The reading is automatically adjusted to ”750 Torr” (”1000 mbar”). This
value is fix and can not be changed.
➨
Press the selection knob to confirm.
750 Torr
➨
Allow the pressure transducer a period of minimum 20
minutes to preheat. Adjustment is not possible during
the preheat time (20 minutes after connecting the volt-
age supply).
➨
---- Torr is displayed, if adjustment is not possible in
the actual pressure range.
Adjustment under vacuum
An adjustment under vacuum is only possible
in the lower pressure range.
➨
Evacuate the measurement connection of the VSP 3000 pressure
transducer preferably below 7.5x10 -4 Torr (1x10 -3 mbar), e.g., by ap-
plying a high vacuum pump. Allow the pressure transducer a period of
minimum 20 minutes to preheat at this pressure.
➨
In ”Configuration” menu, select program ”Adjustment” at the controller.
+
The reading is automatically adjusted to ”zero”. This value is fix and
can not be changed.
➨
Press the selection knob to confirm.
0 Torr