INITIAL PREPARATION
The pH electrode is shipped dry. Before using the
meter, remove the protective cap and condition the
electrode by soaking the tip (bottom 4 cm/1½") in
pH 7.01 buffer solution for a couple of hours. Then
follow the calibration procedure.
OPERATION
• Do not be alarmed if white crystals appear around
the cap. This is normal with pH electrodes and
they dissolve when rinsed with water.
• Connect the supplied electrode to the meter.
• Turn the tester on by sliding the switch on the top.
• Remove the protective cap and place the tip of the
flat electrode on the surface to be measured (skin
or scalp).
• For best results, wet the surface with distilled wa-
ter or a neutral disinfectant.
• After use, rinse the electrode with water and store
it with a few drops of HI 70300 storage solution in
the protective cap.
DO NOT USE DISTILLED OR DEIONIZED WATER
FOR STORAGE PURPOSES.
• Always replace the protective cap after use.
CALIBRATION
• For best results, calibrate frequently.
• Dip the tip of the electrode (4 cm/
1½") in pH 7.01 buffer solution at
room temperature. Allow the reading
to stabilize.
• Use a small screwdriver to adjust the
pH7 trimmer until the display reads
"pH 7.01".
• Rinse the electrode with water and
dip it in pH 4.01 (or pH 10.01) buffer
solution. Allow the reading to stabi-
lize.
• With a small screwdriver adjust the
pH4/10 trimmer until the display reads
"pH 4.01" (or "pH 10.01").
• Calibration is now complete.
ALWAYS CALIBRATE USING FRESH BUFFER SO-
LUTIONS.
WARRANTY
These meters are guaranteed for one year against defects in work-
manship and materials when used for its intended purpose and
maintained according to instructions. Electrodes are guaranteed for
a period of six months. This warranty is limited to repair or replace-
ment free of charge. Damages due to accident, misuse, tampering or
lack of prescribed maintenance are not covered. If service is required,
contact the dealer from whom you purchased the instrument. If under
warranty, report the model number, date of purchase, serial number
and the nature of the failure. If the repair is not covered by the
warranty, you will be notified of the charges incurred. If the instrument
is to be returned to Hanna Instruments, first obtain a Returned Goods
Authorization Number from the Customer Service department and
then send it with shipment costs prepaid. When shipping any instru-
ment, make sure it is properly packaged for complete protection.
Recommendations for Users
Before using this product, make sure that it is entirely suitable for the environment
in which it is used. Operation of this instrument in residential areas could cause
interference to radio and TV equipment. The glass bulb at the end of the pH
electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb
at all times. Any variation introduced by the user to the supplied equipment may
degrade the instrument's EMC performance. To avoid electrical shocks, do not
use this instrument when voltage at the measurement surface exceeds 24 Vac
or 60 Vdc. To avoid damage or burns, do not perform any measurement in
microwave ovens.
BATTERY REPLACEMENT
Replace the batteries when the display fades or the
meter cannot be switched on.
Remove the battery cover on the
back of the meter. Insert 2 new
1.5V batteries, while paying at-
tention to their polarity.
Batteries should only be replaced in a safe area
using the battery type specified in this instruction
manual.
