Hoefer Single Channel Variable Pipette - Manual (Page 4)

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4. PIPETTE DIAGRAM
Push Button Rod
Grip Cover
Tip Cone Tip Ejector Collar Display Handle Tip Ejector Cap Push
Button
Tip Ejector (Thumb Button)
5. PIPETTE OPERATION
Note: Pipettes should be checked prior to use to ensure the tip of the cone is clear of
debris.
5.1 Volume Selection
The volume of the pipette is shown in the display window located on the handle.
The volume can be set by turning the Thumb Button clockwise or counter
clockwise. When setting the desired volume be sure that:
1. There is a clicking sound when set.
2. The digits are completely visible.
3. The selected volume is within the pipettes specified range.
5.2 Sealing/Ejecting Pipette Tips
Press the appropriate pipette tip firmly onto the shaft of the pipette. When the
seal is tight, a visible ring forms between the tip and the shaft. Each Hoefer
pipette has a tip ejector. The tip ejector must be firmly pressed downwards to
ensure contact of the ejector with the top of the pipette tip.