Mettler Toledo HA405-DPA-SC Betriebsanleitung Seite 9

HA405-DPA-SC pH Electrodes
5 Troubleshooting
No response (symptom)
– Poor meter connection
– Cracked glass
Slow response (symptom)
– Dehydrated pH membrane
– Clogged reference junction
– Protein contamination
– Depleted gel layer
Noise (symptom)
– Poor meter connection
– Clogged reference junction
Low slope (symptom)
– Dehydrated pH membrane
– Contaminated membrane
For further assistance, call our Customer Service Center at
+1-800-352-8763.
HA405-DPA-SC pH Electrodes
Printed in Switzerland
C heck connectors at the meter and at
the electrode
Replace electrode
Rehydrate (see Maintenance)
Soak in warm KCl (see Maintenance)
U se pH Electrode Cleaner (see Main-
tenance)
U se Reactivating Solution (see Main-
tenance)
Check connector
(See above)
Rehydrate (see Maintenance)
(See above)
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