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17
ELECTRODE MAINTENANCE
ELECTRODE MAINTENANCE
PREPARATION
• Remove the protective cap. Do not be alarmed if any salt
deposits are present.
Rinse with water.
• Shake the electrode down as you would do with a
clinical thermometer to eliminate any air bubbles inside
the glass tip.
• Remove the fill hole cover to ensure the reference junctions
are flowing. Set aside for storage.
• Top off the electrolyte filling solution using
HI7082
solution.
• If the glass tip and/or junction are dry, soak the
electrode in
HI70300
Storage Solution for a minimum
of 30 minutes.
• Rinse with water.
• Calibrate before using.
STORAGE
• To ensure a quick response, the glass tip and the junction
should be kept moist and not allowed to dry.
• Replace protective cap with a few drops of
HI70300
Storage Solution. Follow PREPARATION above before
taking measurements.
• Replace the fill hole cover.
Note: Never store the electrode in distilled water
PERIODIC MAINTENANCE
• Inspect the electrode for any scratches or cracks. If any
present, replace the electrode.
• Rinse off any salt deposits with water.
• Follow the STORAGE procedure above.
CLEANING PROCEDURE
• Soak in Hanna
HI7061
general cleaning solution
or
HI700640
cleaning solution for milk deposits for
20 minutes. Rinse with water.
• Soak the electrode in
HI70300
Storage Solution for a
minimum of 30 minutes. Rinse with water. Calibrate
before using.
TROUBLESHOOTING
• pH Meter: Follow the meter’s operating and calibration
procedures.
• Electrode: Evaluate your electrode performance based on
the
Sensor check
procedure on page 13.