Hanna Instruments HI 2221 - Manual (Page 36)

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CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE
• General Soak in Hanna HI 7061 or HI 8061 General Cleaning
Solution for approximately ½ hour.
• Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning
Solution for 15 minutes.
• Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solution
for 15 minutes.
• Oil/grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat
Cleaning Solution.
IMPORTANT: After performing any of the cleaning procedures, rinse the
electrode thoroughly with distilled water, refill the reference chamber
with fresh electrolyte (not necessary for gel-filled electrodes) and soak the
electrode in HI 70300 or HI 80300 Storage Solution for at least 1 hour
before taking measurements.