Pulsed output helps avoid clogging or polarization of the tip of the pipette.
The user may select pulsed or continuous current with a switch. Many users have requested external timing control for lab automation applications. The new Midgard can be gated through a headphone-type jack on the side panel by any laboratory logic pulse generator. The output current is continuous whenever the gating jack is logic high, off when it is logic low. A touch pad button allows reversing polarity.