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.: 999157 / 10/12/2009
page 16 of 31
VacuuHandControl VHC
The instrument allows the aspiration of excess liquids. The VHC is supplied completely with three differ-
ent 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 but-
ton. 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 pi-
pette 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 desired position. Put adapter back in fixing clip.
Attention:
Never insert filled pipettes due to risk of contami
-
nation 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 aspira-
tion effect ceases, connect VTC to the diaphragm pump for
a short time until the pump is switched off by the automatic
pressure control (BVC 21 NT) or until the pump reduces its
speed down to standstill (BVC 21 NT VARIO).
After aspiration:
Carefully pull pipette out of the adapter.
Attention:
Risk of contamination and infection. Wear protec-
tive gloves and eye protection! Dispose of pipettes according
to appropriate regulations.
