Patent ID: 7694592

Claim:
An electronic metering apparatus for metering liquids with a drive ( 7 , 8 ), at least one displacer device ( 9 , 10 ) with a displacer chamber ( 9 ) and a displacer element ( 10 ) arranged therein, which is connected to the drive ( 7 , 8 ), at least one holding device ( 5 ) for a pipette point ( 6 ), which has a passage channel ( 11 ) which is connected with the displacer chamber ( 9 ), a data memory ( 23 ) with memory locations for different calibration data concerning different types of calibration parameters which are selected from the group comprising different pipette points, different liquids and different usage conditions, an electric selection device ( 18 , 19 , 20 , 21 ) for selecting the calibration parameter, an electric control unit ( 22 ), which is connected to the electric selection device ( 18 , 19 , 20 , 21 ), the data memory ( 23 ), and to the electric drive motor ( 8 ) of the drive ( 7 , 8 ) and to an electric display device ( 16 ), and which controls the movement of the displacer element ( 10 ) by means of the electric motor ( 8 ) and the display of the metering volume through the display device ( 16 ) making recourse to the calibration data from the data memory ( 23 ), selected with the aid of the selection device ( 18 , 19 , 20 , 21 ), and an electric power supply ( 24 ), characterized in that the memorized calibration data concerning different types of calibration parameters are displayable on the display device ( 16 ) by means of the selection device ( 18 , 19 , 20 , 21 ) and wherein at least one calibration parameter may be selected for performing at least one metering with the selected calibration parameter.