Hanna Instruments HI 84502 - Manual (Page 40)

40
ELECTRODE CONDITIONING AND MAINTENANCE
PREPARATION PROCEDURE
Remove the protective cap of the pH electrode ( HI 1048B).
DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will
disappear when rinsed with distilled/deionized 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 Storage Solution for at least
one hour.
If the fill solution (electrolyte) is more than 2½ cm (1”) below the fill hole, add
HI 7082 3.5M
KCl Electrolyte Solution.
For faster response, unscrew the fill hole screw during measurements.