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Customer Care

Troubleshooting

Symptom	Cause	Action
Liquid drops out from the tip, pipetting volume incorrect	Tip is loose	push tip on tightly
	The shaft nut is loose	tighten the shaft nut
	The sealing surface damaged	replace damaged parts
	The piston damaged or seal worn out due to extensive use	replace damaged parts then wash the housing and lubricate the seal and o-ring with silicone lubricant
	The tip is damaged or worn out due to extensive use	replace the tip with a new one
Droplets of air appear in the aspirated liquid	The pipette tip immersion is too shallow	immerse the tip deeper accordingly to the instruction
	Liquid is aspirated too fast	decrease the speed of aspiration
	The pipette tip is inadequately pressed onto the pipette cone	press the tip harder
Droplets of liquid remain in the pipette tip	The pipette is emptied too fast	decrease the speed of pressing the pipette pushbutton
Droplets of liquid remain in the pipette tip	The tip wettability has increased due to extensive use	replace the tip with a new one

Methods of solving problems and complete pipette assembly are described in detail in each instruction manual.