BrandTech Scientific Transferpette -8/-12 - Handbuch (Seite 32)

Problem Possible Cause Corrective Action
Pipette tip leaks or
volume too low - Tip does not sit properly - Press tip on firmly. Use only suitable
high-quality tips, page 8.
- Damaged V-ring (O-ring) on single
nose cone
- Replace V-ring (O-ring) on nose cones.
“Repairs”, pages 26-28.
- Piston damaged - Replace piston.
“Repairs”, pages 24, 25.
- Seal dirty, damaged - “Repairs”, pages 22, 23.
- Instrument is dirty - Clean instrument.
“Cleaning”, page 19.
- Non-aqueous solutions pipetted - “Adjustment”, page 14.
Poor sample aspiration - Single nose cone clogged - Clean nose cone. Remove cones only;
do not disassemble instrument!
“Cleaning” page 19.
Volume too large - Pipetting key pressed too far down
into the blow-out stroke before
aspirating liquid.
- Operate pipette properly.
“Operating the pipette”, page 10.
Pipetting key moving
stiffly - Key movement reduced - Lubricate piston and centrale guide rod
with the appropriate grease,
pages 13, 34.
Trouble Shooting
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