VACUUBRAND BVC 21 - Manual (Page 14)

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.: 999054 / 15/12/2009
page 14 of 27
VacuuHandControl VHC
The instrument allows the aspiration of excess liquids. The VHC is supplied completely with three different
adapters (included in delivery) to hold with pasteur pipettes, capillaries and pipette tips (100 µl).
Push the locking ring on the control button (release aspiration
tube).
Switch off pump.
Aspiration of liquid:
Press control button until the liquid has been aspirated. Re-
lease the control button to stop aspiration.
For controlled aspiration of excess liquids, the aspiration speed
can be regulated by using the integrated control button. Small
amounts of liquids can be taken up manually by using the thumb
wheel and then sucked into the collecting bottle.
Before aspiration:
Push back the locking ring from the control button.
Choose the appropriate adapter and carefully insert the pipette
into the adapter.
Position pipette tip by turning the fixing clip in such a way that
working is comfortable and fatigue-proof. Remove adapter from
fixing clip if is hard to turn. Squeeze fixing clip and turn to de-
sired position. Put adapter back in fixing clip.
Attention: Never insert filled pipettes due to risk of contamina-
tion and infection. Wear protective gloves!
Working at different work places:
Disconnect bottle VTC with VacuuHandControl VHC from the
inlet of the pump. The bottle VTC is portable. If the aspiration
effect ceases, connect VTC to the diaphragm pump for a short
time until the pump is switched off by the automatic pressure
control.
After aspiration:
Carefully pull pipette out of the adapter.
Attention: Risk of contamination and infection. Wear protective
gloves and eye protection! Dispose of pipettes according to
appropriate regulations.