Hanna Instruments HI 9026V - Manual (Page 10)

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ACCESSORIES
Cleaning procedure
After use, clean the electrode by immersing it in the proper cleaning solution (HI
700635 or HI 700636) for 5 minutes.
If case of slow and unreliable readings, it is recommended to perform the
following procedure for cleaning the junction:
1. Shift upwards the Teflon
® collar. If the collar does not shift easily, immerse
it into warm water.
2. Wipe gently the electrode surface with a soft and clean tissue.
3. In case of persistent wine or must residual, wet the tissue with cleaning
solution (HI 700635 or HI 700636).
4. Put back the Teflon ® collar in its original position.
Troubleshooting
Evaluate your electrode performance based on the following.
• 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 electrodes
only): refill with fresh HI 7082 solution.
• Dry Membrane/Junction: soak in HI 70300 storage solution for 1 hour.
• Drifting: soak the electrode tip in warm (approx. 50-60°C) HI 7082
solution for one hour and rinse the tip with distilled water. Refill with fresh
HI 7082 solution.
• Low Slope: refer to the cleaning procedure above.
• No Slope: check the electrode for cracks in glass stem or bulb and replace
the electrode.
• Slow Response/Excessive Drift: soak the tip in HI 7061 solution for 30
minutes, rinse thoroughly in distilled water and then follow the cleaning
procedure above.
PROBES
HI 1048B
Glass body, double junction, refillable pH electrode with
BNC connector and 1 m (3.3') cable
HI 3131B Glass-body, refillable, platinum ORP electrode
HI 7662 Stainless steel temperature probe with 1 m (3.3’) cable
Consult the Hanna General Catalog for a complete and wide selection of
electrodes.
pH BUFFER SOLUTIONS
HI 7001L
pH 1.68 buffer solution, 500 mL bottle
HI 5003 pH 3.00 buffer solution, 500 mL bottle
HI 7004L pH 7.01 buffer solution, 500 mL bottle
HI 7006L pH 6.86 buffer solution, 500 mL bottle
HI 7007L pH 7.01 buffer solution, 500 mL bottle
HI 7009L pH 9.18 buffer solution, 500 mL bottle
HI 7010L pH 10.01 buffer solution, 500 mL bottle
HI 5124 pH 12.45 buffer solution, 500 mL bottle
ELECTRODE MAINTENANCE SOLUTIONS
HI 70000P
Electrode rinsing solution, 20 mL sachet, 25 pcs
HI 70300L Storage solution, 500 mL bottle
HI 7061L General cleaning solution, 500 mL bottle
HI 70635L Cleaning solution for wine deposits, 500 mL bottle
HI 70636L Cleaning solution for wine stains, 500 mL bottle
HI 7073L Protein cleaning solution, 500 mL bottle
HI 7074L Inorganic cleaning solution, 500 mL bottle
HI 7077L Oil & Fat cleaning solution, 500 mL bottle
HI 7082 3.5M KCl electrolyte solution, 4 x 30 mL, for double junction
electrodes
HI 7091L Reducing pretreatment solution, 500 mL bottle
HI 7092L Oxidizing pretreatment solution, 500 mL bottle
OTHER ACCESSORIES
HI 721317
Rugged carrying case
HI 740157 Plastic electrode refilling pipet (20 pcs)
HI 76405 Electrode holder
HI 8427 pH and ORP electrode simulator with 1 m (3.3') coaxial
cable ending in female BNC connectors
HI 931001 pH and ORP electrode simulator with LCD and 1 m (3.3')
coaxial cable ending in female BNC connectors
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation
of these instruments in residential area could cause unacceptable interference to radio and TV equipment, requiring the
operator to take all necessary steps to correct interference. The glass bulb at the end of the electrode is sensitive to
electrostatic discharges. Avoid touching this glass bulb at all times. During calibration of instruments, ESD wrist straps should
be worn to avoid possible damage to the electrode by electrostatic discharge. To maintain the EMC performance of
equipment, the recommended cables noted in the user's manual must be used. Any variation introduced by the user to the
supplied equipment may degrade the instruments' EMC performance. To avoid electrical shock, do not use these instruments
when voltages at the measurement surface exceed 24 Vac or 60 Vdc. To avoid damage or burns, do not perform any
measurement in microwave ovens.