... 1. Put the nozzle on the pipetting head, and rotates gently, so as to ensure the sealing ... vertical, set the button to the first stopping point, and put the suctionnozzle immersed into the liquid, under ... after that, take it out from the liquid, and do not let it touchanything.4. Move the suction ... container wall, slowly push the button to the firststopping point, waiting for 1-2 seconds, then push the ...