Abstract: A manually directed, multi-channel electronic pipettor includes a software biasing mode to assure proper alignment over wells in the 96-well plate and the 384-well plate. The system also includes manual repositioning levers for nesting receptacles which are customized for 96 well-plates and 384 well-plates respectively.

Abstract: A manually directed, multi-channel electronic pipetting system is designed to transfer liquids from a standard multi-well plate, deep-well plate or reservoir into another multi-well plate. The preferred pipetting head includes an array of 96-tip fittings. A deck with at least one but preferably two or more wellplate nesting receptacles holds one or more multi-well plates or reagent reservoirs for access by an array of disposable pipette tips mounted to the pipetting head. The electronic motion control system includes a control handle that is mounted to a load cell, the carriage for the pipetting head and is held in the palm of the user. In use, the user grasps the control handle and operates the system in a manner similar to one using a handheld electronic pipettor.

Abstract: A manually directed, electronic multi-channel pipettor uses servo controlled motors to drive a carriage and pipetting head in response to a user's manipulation of a control handle. The pipetting head include an array of tip fittings, e.g. 96. The system includes a check processor to avoid unintended motion in case of system faults or crashes. The system requires substantial force to attach the array of tips, and therefore includes controls that require both of the user's hands be occupied during the tip attachment process.