When adjusting the range, if you want to adjust from large volume to small volume, follow the normal adjustment method, turn the knob counterclockwise; but if you want to adjust from small volume to large volume, you can first rotate the scale knob clockwise to over The scale of the range is then adjusted back to the set volume, which guarantees the highest accuracy of the measurement.
During this process, never push the button out of the range, otherwise it will get stuck in the internal mechanism and damage the pipette.

Assembly of the tip (suction nozzle)

When putting the pipette tips on the pipette, many people will knock on the tip box a few times. This is a mistake because it will cause the internal parts of the pipette (such as springs) to be damaged. The instantaneous impact force generated by the tapping becomes loose and may even cause the scale adjustment knob to become stuck. The correct way is to insert the pipette (gun) vertically into the tip of the gun, and use a slight force to rotate it slightly to make it tightly bond. If it is a multi-channel (such as 8- or 12-channel) pipette, you can align the first line of the pipette with the first tip, then insert it obliquely, and shake it in the front-rear direction. The marking of the grip is slightly over the O-ring and the connecting part can be seen to form a clear seal.

Pipetting method

Before pipetting, ensure that the pipette, tip and liquid are at the same temperature. When pipetting the liquid, the pipette is held upright and the tip is inserted 2-3 mm below the surface. Before aspirating, you can first aspirate the liquid several times to wet the liquid suction nozzle (especially when you want to absorb a liquid that is thick or different in density from water). Two pipetting methods can be used at this time.