User Guide

ACCESSORIES

pH CALIBRATION SOLUTIONS

HI 70004P pH 4.01 Buffer Sachets, 20mL, 25 pcs

HI 70007P pH 7.01 Buffer Sachets, 20mL, 25 pcs

HI 70010P pH 10.01 Buffer Sachets, 20mL, 25 pcs

HI 7004L pH 4.01 Buffer Solution, 460 mL

HI 7006L pH 6.86 Buffer Solution, 460 mL

HI 7007L pH 7.01 Buffer Solution, 460 mL

HI 7009L pH 9.18 Buffer Solution, 460 mL

HI 7010L pH 10.01 Buffer Sol., 460 mL

ELECTRODE STORAGE SOLUTION

HI 70300L Storage Solution, 460 mL

ELECTRODE CLEANING SOLUTIONS

HI 70000P Electrode Cleaning Sachets, 20 mL, 25 pcs

HI 7061L General Cleaning Sol., 460 mL

HI 7073L Protein Cleaning Sol., 460mL

HI 7074L Inorganic Cleaning Sol., 460mL

HI 7077L Oil & Fat Cleaning Sol.,460 mL

REFILL ELECTROLYTE SOLUTIONS

HI 7071 3.5M KCl + AgCl Electrolyte, 4x50 mL

HI 7072 1M KNO

Electrolyte, 4x50 mL

HI 7082 3.5M KCl Electrolyte, 4x50 mL, for double junction electrodes

electrodes only): refill with fresh HI7071 for single junction or

HI7082 for double junction electrodes.

• Dry Membrane/Junction: Soak in Storage Solution HI70300

for at least 1 hour.

• Drifting: Soak the electrode tip in warm Hanna Solution

HI7082 for one hour then flush tip with distilled water. Refill with

fresh HI7071 for single junction electrodes and HI7082 for double

junction electrodes.

• 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 Hanna Solu-

tion HI7061 for 30 minutes, rinse thoroughly in distilled water

and then follow the Cleaning Procedure above.