Gilson pipetman - 16 LEAK TEST; 17 TROUBLESHOOTING

ENGLISH
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Problem Possible Cause Refer to page
Pipette is leaking sample. Worn O-ring. 21
Pipette won’t aspirate. Worn O-ring. 21
Unscrewed lower part of tip-holder. 20
Damaged or corroded piston. 21
Damaged tip-holder. 20
Improper repair or assembly. 20-22
Connecting nut is loose. 21
Software needs to be reset. 5
Noisy operation. Piston needs lubricating. 22
Pipette is inaccurate. Improper repair or assembly. 20-22
Unscrewed lower part of tip-holder. 20
Pipette is out of adjustment. 19
Connecting nut is loose. 21
16 LEAK TEST
This test may be performed at any time to check that the pipette does not leak, especially after
performing a maintenance or decontamination procedure. If a pipette fails this test, you should
replacethefaultypart(e.g.O-ring,tip-holder...)andrepeatthistest,aftermakingsurethatthepipette
is correctly reassembled.
• FitaPIPETMANDIAMOND Tip,
• Setthepipettetothenominalvolume,
• Aspiratethenominalvolumefromabeakerofdistilledwater.
• Holdthepipetteintheverticalpositionandwaitfor20seconds,
• Ifawaterdropletappearsattheendofthetipthereisaleak(seeChapter17).
• Ifyouseenodroplet,re-immersethetipbelowthesurfaceofwater,
• Thewaterlevelinsidethetipshouldremainconstant;ifthelevelgoesdownthereisaleak(see
Chapter17).
• ForMultichannelmodels,checkifthewaterlevelbetweeneachtipisthesame.
17 TROUBLESHOOTING
Incaseofmalfunction,rstresetthepipetteby
pressing on the push-button and the Mode-button
simultaneouslyatleastfor8seconds.
If the problem persists, you may consult the fol-
lowingtablewhichidentiespotentialproblems
and their solutions.
Problem Possible Cause Refer to page
Pipette is not precise. Unscrewed lower part of tip-holder. 20
Incorrect operator technique. 13
Worn O-ring. 21
Connecting nut is loose. 21
Damaged or corroded piston. 21
Damaged tip-holder. 20
Tips fall or don’t fit. Low quality tips. 11-12
Damaged tip-holder. 19
Damaged tip-ejector. 19
Ejector spacer is damaged. 22
Tip-ejector is loose. 20-22
Dirty tip-holder. 22
No OLED display. Pipette is in sleep mode. 4
Battery needs recharging. 15-16
Software needs to be reset. 5
No operation possible. Battery needs recharging. 15-16
Software needs to be reset. 5
Calibration impossible. Software needs to be reset. 5
Before returning any pipette to your
local Gilson Service Center, ensure that it
is completely free of chemical, biological,
or radioactive contamination. Please
use the included safety bag.