21
ELECTRODE MAINTENANCE
PREPARATION
• Remove the protective cap. Do not be alarmed if 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.
• 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.
Note: Never store the electrode in distilled water.
PERIODIC MAINTENANCE
• Inspect the electrode for any scratches or cracks. If any
present, replace the electrode.
PERIODIC MAINTENANCE
• Soak in Hanna HI700601 pH and ORP electrode
cleaning solution for approximately 20 minutes. Rinse
with water. Soak in HI70300 storage solution for at
least 30 minutes.
• Squirt the EC cell out with copious amounts of purified
water so no salty solutions remain. Rinse pH section
out also and calibrate before using. If the wick junction
appears darkened, if may be pulled out a few mm and
the soiled part cut off.
• Test: Perform Sensor check (see page 14).
ELECTRODE MAINTENANCE
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