VACUUBRAND MZ 2C VARIO - Manual (Page 32)

page 32 of 51
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.: 999034 / 22/04/2008
Setting the lower pressure value (condition for automatic
switching off):
➨ Press p▲ or p▼.
☞ Set p and the lower pressure value are displayed for approx.
1s.
☞ With a second tip within one second or continuous pressing:
➨ Set the lower pressure value by pressing key p▲ or p▼.
☞ The lower pressure value is stored as the new set point when
the key is released.
Note: It is recommended to select a pressure value which is
approx. 10 mbar higher than the ultimate pressure value achiev-
able in the system.
Setting the process parameter
Setting the time for automatic shut down:
➨ Press key Mode ▲ or ▼.
☞ Set and the clock symbol and the time for automatic shut
down are displayed for approx. 1 s.
☞ With a second tip within one second or continuous pressing:
➨ Press key Mode ▲ or ▼ to set value for time for shut down
(1 - 200 min).
☞ The value for the shut down time is stored as the new set
point when the key is released.
☞ If the actual pressure is below the lower set point, the time
for automatic shut down is running. Reset of the time for
automatic shut down if the actual pressure is higher than the
lower set point (with a hysteresis of 3 mbar).
The process control stops when the time for shut down has
passed. The vacuum pump and the coolant valve switch off.
☞ Pump starts again in case of great pressure increase.
☞ If the actual pressure is higher than the upper set point, the
pump starts again (corresponds to starting by pressing key
START).
☞ The process control can be manually stopped at any time
by pressing key STOP.
Setting the upper pressure value (condition for restart):
➨ While key MODE is pressed, press key Mode and ▲ .
☞ Set p, arrow up and the upper pressure value are displayed
for approx. one second.
☞ With a second tip within one second or continuous pressing:
➨ Set the upper pressure value by pressing key Mode ▲ or ▼.
☞ The upper pressure value is stored as the new set point
when the key is released.
247
mbar
67
mbar
MODE
67
mbar p
015