Buchi B-720 - Operation

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BÜCHI Vacuum Controller B-720
5 Operation
5 Operation
5.1 Controls on the membrane keypad
 Set desired pressure «P».
 Set hysteresis «욼P».
 Increase the displayed value, ventilate the system during
distillation «UP».
 Decrease the displayed value, lower the pressure during
distillation «DOWN».
 Change the display from mbar or hPa to Torr or mmHg
«mbar Torr».
 Start the distillation process «START».
 Stop the distillation process «STOP».
Figure 12: The membrane keypad on the B-720
The unit is not splash-proof.
5.2 Normal operation
1. Set the power switch to ON.
2. Use «P» with «UP» or «DOWN» to select and set the desired
value of your choice.
3. Use «욼P» to check the hysteresis and change if necessary
with «UP» or «DOWN».
4. Press «START».
5. Distillation begins.
6. Press «STOP»; the unit is ventilated.
7. Set the power switch to OFF; the last set point values entered
will be saved.







B†CHI Vacuum Controller B-720
START
STOP
P
∆P
UP
DOWN
mbar/ Torr
mbar/
hPa
Torr/
mm Hg
SWITZERLAND
BÜCHI