User Guide

34
tion or HI 7082 or HI 8082 for double junction
electrodes). Follow the Preparation Proce-
dure above before taking measurements.
Note: NEVER STORE THE ELECTRODE IN
DISTILLED WATER OR DRY.
PERIODIC MAINTENANCE
Inspect the electrode and the cable. The cable
used for the connection to the meter 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, re-
place the electrode.
Rinse off any salt deposits with water.
For refillable electrodes:
Refill the reference chamber with fresh elec-
trolyte (HI 7071 or HI 8071 for single junction
or HI7082 or HI 8082 for double junction elec-
trodes). Allow the electrode to stand upright
for 1 hour.
Follow the Storage Procedure above.
CLEANING PROCEDURE
General Soak in Hanna HI 7061 or HI 8061
General Cleaning Solution for
approximately 1 hour.
Removal of films, dirt or deposits on the
membrane/junction:
- Protein Soak in Hanna HI 7073 or HI 8073
Protein Cleaning Solution for
15 minutes.
- Inorganic Soak in Hanna HI 7074 or HI 8074
Inorganic Cleaning Solution
for 15 minutes.
- Oil/grease Rinse with Hanna HI 7077 or
HI 8077 Oil and Fat Cleaning
Solution.