VACUUBRAND CVC 3000 - Manual (Page 57)

page 57 of 80
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
Connecting several external gauge heads
It is possible to connect several external gauge heads simultaneously to
the CVC 3000 controller. Maximum number of gauge heads of the same
type (VSK 3000 or VSP 3000) connected to one CVC 3000: four. That is
a total of eight external gauge heads at maximum. Up to four additional
gauge heads VSK 3000 may be connected as reference if configured
accordingly (see ”Measuring differential pressure”). Only the readings of
one gauge head are displayed at a time.
+
The VACUU•BUS address of the active gauge head is not shown in
the status line. The readings of all gauge heads are shown in the menu
”Sensors”.
+
Each gauge head needs an individual address (VSK 1 to VSK 4 /
VSP 1 to VSP 4) to communicate with the CVC 3000 Controller via
VACUU•BUS. All gauge heads are shipped with their VACUU•BUS
address factory-set to VSK 1 or VSP 1.
+
Use your CVC 3000 Controller to reconfigure the gauge head (e.g.,
changing the VACUU•BUS address from VSK 1 to VSK 2), see section
”Reconfiguring the gauge head”.