Hanna Instruments hi 98140 Manual De Usuario
27
Replace solution in the protective cap with a few drops of HI70300 or
HI80300 Storage Solution or, in its absence, Filling Solution
(HI7071 for single junction or HI7082 for double junction electrodes).
Follow the Preparation Procedure above before taking measurements.
HI80300 Storage Solution or, in its absence, Filling Solution
(HI7071 for single junction or HI7082 for double junction electrodes).
Follow the Preparation Procedure 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 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, replace the electrode.
Rinse off any salt deposits with water.
For refillable electrodes:
Refill it with fresh electrolyte (HI7071 for single junction or HI7082 for
double junction electrodes). Allow the electrode to stand upright for 1
hour.
Follow the Storage Procedure above.
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, replace the electrode.
Rinse off any salt deposits with water.
For refillable electrodes:
Refill it with fresh electrolyte (HI7071 for single junction or HI7082 for
double junction electrodes). Allow the electrode to stand upright for 1
hour.
Follow the Storage Procedure above.
CLEANING PROCEDURE
General Soak in Hanna HI7061 General Cleaning Solution for
approximately 1 hour.
Removal of films, dirt or deposits on the membrane/junction:
- Protein
approximately 1 hour.
Removal of films, dirt or deposits on the membrane/junction:
- Protein
Soak in Hanna HI7073 Protein Cleaning Solu-
tion for 15 minutes.
tion for 15 minutes.
- Inorganic
Soak in Hanna HI7074 Inorganic Cleaning
Solution for 15 minutes.
Solution for 15 minutes.
- Oil/grease
Rinse with Hanna HI7077 Oil and Fat Clean-
ing Solution.
ing Solution.
IMPORTANT: After performing any of the cleaning procedures rinse
the electrode thoroughly with distilled water, drain and refill the
reference chamber with fresh electrolyte, (not necessary for GEL filled
electrodes) and soak the electrode in HI70300 Storage Solution for
at least 1 hour before taking measurements.
the electrode thoroughly with distilled water, drain and refill the
reference chamber with fresh electrolyte, (not necessary for GEL filled
electrodes) and soak the electrode in HI70300 Storage Solution for
at least 1 hour before taking measurements.
TROUBLESHOOTING
Evaluate your electrode performance based on the following possibili-
ties.
• Noise (Readings fluctuate up and down) could be due to:
- Clogged/Dirty Junction: Refer to the Cleaning Procedure above.
- Loss of shielding due to low electrolyte level (in refillable
ties.
• Noise (Readings fluctuate up and down) could be due to:
- Clogged/Dirty Junction: Refer to the Cleaning Procedure above.
- Loss of shielding due to low electrolyte level (in refillable