Hach 2965249 Electrode Cleaning Solution is recommended for cleaning all pH, ORP and sodium ion selective electrodes.
Clean the probe when: • Drifting/inaccurate readings occur as a result of contamination on the sensing element or incorrect storage conditions. • Slow response time occurs as a result of contamination on the sensing element. • The slope is out of range as a result of contamination on the sensing element.
For general contamination, complete the steps that follow. 1. Rinse the probe with deionized water. Blot dry with a lint-free cloth. 2. Soak the glass bulb for 12 to 16 hours in Hach Electrode Cleaning Solution. 3. Rinse or soak the probe for 1 minute in deionized water. 4. Soak the probe in pH 4 buffer for up to 20 minutes, then rinse with deionized water. 5. Blot dry with a lint-free cloth. 6. If harsh contaminants are attached to the probe, polish the probe tip with a soft cloth or cotton swab to remove the contaminants. 7. Soak for up to 20 minutes in pH 4 buffer, then rinse with deionized water
Hach 2965249 Electrode Cleaning Solution is available in a 500 ml bottle.