Mettler Toledo 405-DPAS-SC Manual De Instrucciones página 9

405-DPAS-SC pH Electrodes
Protein Contamination: Clean the electrode with pH Electrode
Cleaner for Proteins following instructions on the bottle.
Reactivating pH membrane: Use Reactivating Solution
following directions CAREFULLY.
Servicing a clogged or dry reference junction: Immerse
the electrode in a beaker of 3M KCl. Heat the solution to
approximately 70 °C (160 °F) and allow electrode to soak
in this solution as it cools to room temperature.
6 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.
405-DPAS-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
Maintenance)
U se Reactivating Solution (see
Maintenance)
Check connector
(See above)
Rehydrate (see Maintenance)
(See above)
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