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pH pH

ELECTRODE CLEANING PROCEDUREELECTRODE CLEANING PROCEDURE

ELECTRODE 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.

EC Probe MaintenanceEC Probe Maintenance

EC Probe Maintenance

Rinse the probe with clean water after measurements. If a more thorough

cleaning is required, remove the probe sleeve and clean the probe with

a cloth or a nonabrasive detergent. Make sure to reinsert the sleeve onto

the probe properly and in the right direction. After cleaning the probe,

recalibrate the instrument.

The platinum rings support is made of glass. Take great care while

handling the probe.

Hanna Instruments HI 2550 User Manual

Questions and Answers: