Hanna-instruments HI 121 Manuel d'utilisateur télécharger pdf (Page 49)

ELECTRODE CONDITIONING

& MAINTENANCE

PREPARATION PROCEDURE

Remove the protective cap of the pH electrode.

DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with

electrodes. They will disappear when rinsed with water.

During transport, tiny bubbles of air may form inside the glass bulb affecting

proper functioning of the electrode. These bubbles can be removed by

“shaking down” the electrode as you would do with a glass thermometer.

If the bulb and/or junction is dry, soak the electrode in HI 70300 or HI 80300

Storage Solution for at least one hour.

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Hanna-instruments HI 121 Manuel d'utilisateur Page 49