Suction head belongs to a kind of common supplies in daily life, it has a lot of uses, especially in some small factories can often see its figure, many people think that suction head such a very simple tool installation and use should be very convenient, in fact, it is not the use of many problems need to pay attention to.

1. Install the suction head

For one-way pipette, insert the pipette end vertically into the suction head, gently press left and right, and gently rotate to tighten; For a multi-channel pipette, align the pipette's channel with the suction head, insert it at an Angle, gently rock it back and forth and tighten it; Do not shock the straw repeatedly to ensure the air tightness of the suction head. If the pipette head is assembled in this way for a long time, the parts of the pipette will be loosened by strong impact, and even the knob for adjusting the scale will get stuck.

2. Set the capacity

When adjusting from high volume to low volume, rotate counterclockwise to scale; When adjusting from a low volume to a high volume, you can adjust the set volume clockwise and then back to the set volume to ensure better accuracy. Do not turn the adjusting knob out of range, otherwise it will damage the mechanism in the pipette.