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18. ELECTRODE CONDITIONING & MAINTENANCE
Storage Procedure
To assure a quick response time, the glass bulb should be kept moist and not allowed to dry out.
Replace the solution in the protective cap with a few drops of
Follow the Preparation Procedure section before taking measurements.
Note: Never store the pH electrode in distilled or deionized water.
Periodic Maintenance
Inspect the electrodes and the cables. The cable used for connection to the instrument must be intact
and there must be no broken insulation on the cable or cracks on the electrode stem or bulb. Connectors
must be perfectly clean and dry. If any scratches or cracks are present, replace the electrode. Rinse off
any salt deposits with distilled/deionized water.
pH Cleaning Procedure
• Soak in Hanna Instruments
Important: After performing any of the cleaning procedures, rinse the electrode thoroughly with
distilled or deionized water and soak the electrode in HI70300 or HI80300 Storage Solution for
at least 1 hour before use. Recalibrate electrode before taking measurements.
46
HI7061
or
HI8061
General cleaning solution for approximately ½ hour.
HI70300
or
HI80300
Storage solution.
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