Fixed Volume Pipette, Micropipette. Fixed volume pipettes are ideal pipetting units to be used when working with dense or viscous liquids. Unlike adjustable volume pipettes, fixed volume pipettes dispense the same quantity of liquid every time you dispense. The volume of a fixed volume micropipette cannot be changed, which allows the user to work at a faster pace without having to constantly change the volume setting on the side or top of the pipette. With fixed volume micropipettes you are much less likely to suffer an error similar to those errors caused by accidentally changing the volume setting, which can occur with an adjustable volume pipette. Calibration is also much more simple and faster to carry out, as there are far fewer internal components in a fixed volume micropipette than there are in an adjustable volume pipette. Fixed volume micropipettes are ideal and beneficial for labs on a budget as well as for beginner or non-certified technicians where the margin for error can be significantly reduced by removing the varying volume component from the pipette used to dispense liquids.