6
3.2. Reset Button
To reset the pipettor, press the reset button on the battery cover. The display
shows RESET and PRESS TIP in a blinking form and pressing the tip ejector
button will reset the pipettor to the first programming level in PIPET mode.
During the reset function the pipettor automatically determines the home
position for the piston and tip ejector by running the piston up and down.
During the reset function the display shows AUTO TEST and the completed
reset function is confirmed by showing the text DONE on the display.
Note: The pipettor must never be reset with the tip attached! The attached tip
can induce an error in home position determination. However, if resetting is
accidentally done with the tip attached reset the pipettor again without the tip
attached.
3.3. Start Button
The start button triggers the aspiration and dispensing operations according to
selected operating mode. Only a soft touch is required to operate the button. If
the start button is held down during dispensing, the piston will stop in the
lowest position until the button is released. In the operating modes with
automatic blow-out (P, dd) the piston will automatically return to the home
position after the start button is released.
If the start button is held down in the reverse pipetting mode or during the
dispensing of the last aliquot in the multi-dispensing modes the piston direction
symbol will change within one second and the pipettor will be ready to aspirate
the next sample when the start button is released.
3.4. Tip sealing and Electronic tip ejection
The Biohit pipettor tips are recommended for use
with Biohit
e
LINE pipettors. The
e
LINE multichannel
pipettors are provided with a spring loaded
OPTILOAD tip cones for optimal sealing.
For easy and effortless tip ejection all Biohit
e
LINE
electronic pipettors are equipped with the new
electronic tip ejection feature (Fig. 2). There are two
tip ejection buttons conveniently placed on the
either side of the start button to ensure easy reach
for both right and left handed users. In single-
channel models the tip ejector collar can be
adjusted to optimise the tip ejection function when
other than manufacturer’s original tips are used
(excluding the
e
5000).
Fig. 2.
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