Hanna Instruments HI 9026V User Manual

Page 10

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.