Buchi KjelSampler K-377 Manuel d'utilisateur télécharger pdf (Page 151)

8 Troubleshooting

151

K-375/376/377 Operation Manual, Version B

8.4 Eliminating errors of the titrator

The buret is not properly ﬁlled

Possible reasons Action/remedy

The reagent bottle is empty. Replace or reﬁll the reagent bottle.

The hose is not immersed deep enough

into the reagent bottle.

Immerse the hose deeper into the bottle, or ﬁll up reagents.

The buret is not properly locked. Lock the buret.

Air bubbles in the titration system

Possible reasons Action/remedy

The hose connections are not tight. Check whether the hose has been pulled out of the threaded connec-

tion and screw it on manually.

Replace the hoses including the threaded connections.

Reﬁll the buret

Titration solution is not titrated/dosed

Possible reasons Action/remedy

The buret is not properly ﬁlled. Perform initial ﬁlling.

The hose or the titration tip are wrinkled

or blocked.

Check for a clear passage through hose and titration tip and replace the

corresponding parts, if necessary.

Undissolved parts in the titration solution. Filter or replace titration solution.

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Buchi KjelSampler K-377 Manuel d'utilisateur Page 151