why should you not rotate the volume adjuster of a micropipettor above or below the range written on the instrument?

what two things could happen?

The volume adjuster on a micropipettor is designed to dispense precise volumes of liquid. It is labeled with a specific range, indicating the minimum and maximum volumes that can be accurately and reliably measured. It is important not to rotate the volume adjuster above or below this range for two main reasons:

1. Inaccuracy: If you rotate the volume adjuster above or below the specified range, the micropipettor may not accurately measure the desired volume. Micropipettors have internal mechanisms that are calibrated to function optimally within a specific volume range. Operating outside of this range can result in inaccurate measurements, leading to experimental errors and unreliable data.

2. Damage: Micropipettors are delicate instruments with precision parts. Rotating the volume adjuster beyond its designated range can put excessive stress on these parts and potentially cause damage. For instance, twisting the volume adjuster beyond the maximum volume range could lead to the internal piston or O-rings getting damaged or misaligned. This could impair the pipettor's accuracy and require costly repairs or even result in the need for replacement.

In summary, rotating the volume adjuster above or below the specified range on a micropipettor can result in inaccuracies in measurements and potential damage to the instrument. It is crucial to follow the manufacturer's instructions and respect the given range to ensure accurate and reliable pipetting.