Electrode Maintenance - Hanna Instruments HI99131 Instruction Manual

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 bulb.
• If the bulb 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 bulb and the junction
should be kept moist and not allowed to dry.
• Replace protective cap with a few drops of
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.
• Rinse off any salt deposits with water.
• Follow the STORAGE procedure above.
CLEANING PROCEDURE
• Soak in Hanna
20 minutes. Rinse well and calibrate before using.
IMPORTANT: After performing any of the cleaning
procedures rinse the electrode thoroughly with distilled
water. Soak the electrode in
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.
HI7061 General Cleaning Solution for
HI70300
HI70300
Storage Solution
17