7
4. Functional testing
Mount new pipette tip and
set the nominal volume
Take up the test liquid
►
Aspiration of the liquid not possible or very slow:
If a drop forms:
The pipetting button must move smoothly and
►
►
See notes in the table below
Leak test: Hold the filled pipette
vertically for approx. 10 seconds and
observe if a drop forms at the tip
See notes in the table below
Release the test liquid. Hold pipette tip
against wall of the vessel and wipe off
against the wall
jerk-free
Eject the tip
Enter results in the test record
►
Possible errors and the resulting measures
(For other measures and more troubleshooting advice, please check the operating manual)
Error
Possible cause
Measures
Aspiration not possible
or very slow
Pipette shaft or pipette shaft
tip blocked
►
Clean the instrument
(see operating manual)
Drop forming at the
pipette tip
Pipette tip not properly attached
Seal or piston damaged
►
Attach new pipette tip
►
Clean or replace seal and / or
piston
(see operating manual)
►
Replace V- resp. O-ring
(see operating manual)
V- resp. O-ring damaged
