Metrohm 860 KF User Manual

7.1 Problems and their solutions
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860 KF Thermoprep
7 Troubleshooting
7.1 Problems and their solutions
Problem Cause Remedy
The drift is very high
during conditioning.
Molecular sieve of drying
flasks and/or the titration
cell exhausted.
Replace molecular sieve.
The titration cell is leaking
Check seals. If necessary, replace.
The titration time is
too long.
The sample is non-homo-
genous
Reduce the size of the sample before weighing
in.
Not the entirety of the
moisture expelled.
Select more stringent switch-off criteria on the
KF titrator: lower stop drift, higher switch-off
delay time.
Tubing connections leaking
Inspect tubing and replace as necessary.
The results are
spread widely.
Molecular sieve of drying
flasks exhausted.
Replace molecular sieve.
Condensate in the heating
tube.
￭ Dry the tubing.
￭ Reduce the gas flow.
￭ Perhaps lower the oven temperature.
Gas flow too high.
Reduce the gas flow.
The sample is non-homo-
genous
Reduce the size of the sample before weighing
in.
Selected gas flow is
not achieved.
System is leaking
Check all tubing connections and drying flasks
for leaks.
Pressure from external gas
supply either too low or
too high.
Adjust gas pressure (max. 0.3 bar).
Pump defective
Contact a service technician.

Metrohm 860 KF Specifications

General

Brand	Metrohm
Model	860 KF
Category	Laboratory Equipment
Language	English