Eppendorf Reference 2 - Troubleshooting; Control button; Dispensing; Pipette tip

16
Troubleshooting
Eppendorf Reference
®
2
English (EN)
5 Troubleshooting
5.1 Control button
5.2 Dispensing
5.3 Pipette tip
5.4 Tip cone
Problem Cause Solution
Control button jams. • The lower part is dirty.  Clean and grease the lower
part.
• Seal defective.  Replace seal.
• Protection filter is clogged.  Replace the protection filter
(2 mL – 10 mL).
Problem Cause Solution
Liquid is dripping. • Pipette tip is loose.  Attach the pipette tip firmly.
 Deactivate the spring load.
 Use the pipette tip epT.I.P.S..
• Seal defective.  Replace seal.
•Defective o-ring.  Replace o-ring.
• Dispensed liquid has high
vapor pressure.
 Pre-wet the pipette tip
several times.
• The tip cone is damaged.  Replace lower part
(single-channel pipette).
 Replace channel
(multi-channel pipette).
Wrong dispensing
volume.
• Dispensed liquid has high
vapor pressure or a deviating
density.
 Adjust the pipette for the
liquid used.
Problem Cause Solution
Pipette tip is loose. The pipette tip is not
compatible.
 Use epT.I.P.S. pipette tips.
 Use the correct size.
Higher attachment forces are
required.
 Attach the pipette tip firmly.
 Deactivate the spring load.
Problem Cause Solution
No spring-loaded
action of tip cone.
The spring-loaded action is
blocked (single-channel).
 Remove locking ring.
Spring loading is switched off
(multi-channel).
 Switch on spring loading.