Eppendorf Reference Manuale Utente Scaricare il pdf (Pagina 21)

Control button

jams, moves

erratically.

– Piston contaminated.

– Seals contaminated.

– Penetration of solvent

vapors.

– Clean piston and lubricate

lightly.

– Disassemble pipette. Clean

all seals and exchange

where necessary

(see Part B, Maintenance).

– Unscrew pipette at the

central junction and

ventilate.

Clean piston and lubricate

lightly.

Pipette

blocked,

too little liquid is

aspirated.

– Liquid has penetrated the tip

cone and dried.

For 25 to 500 μL pipettes:

– The filling tube in the nose

cone is blocked.

– Unscrew pipette at the

central junction, rinse lower

part first with warm water,

then with distilled water and

allow to dry.

Or:

– Disassemble pipette.

Replace ejector seal in the

tip cone (see Part B, Mainte-

nance).

For 25 to 50 μL:

– Replace tip cone.

For 100 to 500 μL:

– Replace the filling tube in

the tip cone (see Part B,

Maintenance).

Error Cause Solution

Eppendorf Reference® – Part A – Chapter 10

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