Hanna Instruments HI 84102 - Manual (Page 17)

17
STORAGE PROCEDURE
To minimize clogging and assure a quick response time, the glass bulb and the junction of the
electrode should be kept moist and not allowed to dry out.
Replace the solution in the protective cap with a few drops of HI 70300 Storage Solution or, in its
absence, Filling Solution (HI 7082). Follow the Preparation Procedure before taking measurements.
Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER.
PERIODIC MAINTENANCE
Inspect the electrode and the cable. The cable used for connection to the instrument must be intact
and there must be no points of broken insulation on the cable or cracks on the electrode stem or
bulb. Connectors must be perfectly clean and dry. If any scratches or cracks are present, replace the
electrode. Rinse off any salt deposits with water.
Probe Maintenance
Refill the reference chamber with fresh electrolyte (HI 7082). Allow the electrode to stand upright
for 1 hour. Follow the Storage Procedure above.
CLEANING PROCEDURE
•
Wine deposits Soak in Hanna HI 70635 cleaning solution for 15 minutes
• Wine stains Soak in Hanna HI 70636 cleaning solution for 15 minutes
IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with
distilled water, refill the reference chamber with fresh electrolyte and soak the electrode in
HI 70300 Storage Solution for at least 1 hour before taking measurements.
If the filling 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.