Metrohm 803 Ti Stand Manual de usuario descargar pdf (Pagina 24)

4.1 Problems

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803 Ti Stand

4 Troubleshooting

4.1 Problems

Problem Cause Remedy

Solvent is added at

the same time dur-

ing aspiration.

The drying tube is blocked.

￭ Enlarge the hole of the drying tube cover

to 2 mm at least.

￭ Refill the drying tube, not packing too

tightly, eventually removing some of the

molecular sieve.

The pump conveys

no liquid.

The add/aspirate key is not

pressed tightly enough.

￭ It is usually the case that the bottle attach-

ments are not screwed tightly enough to

the reagent and waste bottles.

￭ Check all connections for leak-tightness.

￭ Check whether the 803 Ti Stand has been

set up correctly.

The solvent flows on

into the titration

vessel after the

addition, without

the add key being

pressed.

The solvent bottle is not set

up correctly.

Set the solvent bottle up in such a way that

the liquid level in the bottle is lower than that

in the titration vessel.

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Metrohm 803 Ti Stand Manual de usuario Pagina 24