When the pipette is not in use, it should be kept in an upright position to avoid contamination from work surfaces. Sartorius offers a wide selection of stands for mechanical and electronic pipettes. Electronic pipettes are recommended to be stored and filled on a charging stand or on a rotating stand, whenever not in use. That way the batteries always stay charged. The carousel is used to store and charge four electronic pipettes, Picus or eLINE®.ecially for mLINE®, Proline® Plus and Proline® mechanical pipettes. This stand is compatible with a wide range of other brands of pipettes.