Operation; Principle Of Operatio - Sartorius BIOHIT Picus User Manual

3. Operation

3.1 Principle of operation
Picus is an electronic pipette operated by the air displacement principle.
The unique DC-motor, electronic brake and piston control system inside
the pipette complete with electronic tip ejection guarantees excellent
accuracy, precision and safety. The unique adjustment wheel enables fast and
comfortable operating and its location makes Picus yet several times more
ergonomic and versatile than amechanical pipette, due to its fully electronic
function.
Pipetting functions are controlled with operating button, adjustment wheel
and soft keys.
Operating button
– Used to confirm the settings (optional to soft key ok) and moves the piston
in aspiration and dispensing.
Adjustment wheel - for fast volume setting
– Used for scrolling the menu and number settings.
– Moves the piston in manual and titrating modes for aspiration and
dispensing.
– Unlocks the edit menu: turn the adjustment wheel to the end to unlock the
pipette for editing in active mode.
Electronic tip ejector
– Ejects the tip(s) with a light touch
Soft keys
– MENU: Displays the mode selection.
– BACK: Returns to the previous screen without saving the changes
– QUIT: Quits the pipetting task
Middle soft key
– EDIT: Activates the changes to adjusted settings.
– NEXT: Active in edit mode. Moves the cursor to the next parameter to be
edited.
– SAVE: Active in memory settings. Saves the selected programme to the
memory location.
– Alphabets/symbols: Active in memory settings and in setup settings for
entering the letters, numbers or symbols
Right soft key
– ADV: Active in main screen of each mode. Activates the additional functions
to be used in conjunction with main mode.
– OK: Confirms the selection
– CLEAR: Active in memory settings to clear the entered name
8