Troubleshooting - BRAND Transferpette S 8 Mode D'emploi

10 Troubleshooting

h.
10 Troubleshooting
Fault
Tip dripping (device leaking) Unsuitable tip
The instrument does not as-
pirate or aspirates too little;
the dispensed volume is too
low
Aspiration is very slow
Dispensed volume too large Pipetting button pressed too far
Piston sluggish
Operating manual
58
h.
Reassemble the pipetting unit. Check
the instrument for leaks, see Mainte-
nance, p. 52 .
The pipetting unit must be screwed onto
the handle in a counter-clockwise direc-
tion until it clicks into place. Do not pull
the pipetting unit downwards!
Possible causes
Tip not seated tightly
Seal contaminated
Seal or cone is damaged
Piston is contaminated or dam-
aged
Shaft is clogged
(to the over-stroke point) before
aspirating
Piston is contaminated or not
greased
NOTICE
Corrective action
Only use high-quality tips
Firmly press tip on
Clean seal
Replace seal or shaft
Clean or replace piston
Clean shaft
Ensure proper handling.
Clean piston and apply grease
Transferpette® S-8/-12 997208