Hanna-instruments HI 96107 User Manual download pdf (Page 2)

OPERATION

• Remove the protective cap. Do

not be alarmed if white crystals

appear around the cap. This is

normal with pH electrodes and

they dissolve when rinsed with

water.

• Turn the meter on sliding the

switch on the top.

• Immerse into solution up to

the max immersion level.

• Stir gently and wait until the

display stabilizes.

• After use, rinse the electrode

with water to minimize con-

tamination and store it with a

few drops of storage (HI70300)

or pH 7 (HI 7007) solution in

the protective cap.

DO NOT USE DISTILLED OR DEIONIZED

WATER FOR STORAGE PURPOSES.

• Large fluctuations in readings could be due

to lack of calibration, dry electrode or run-

down batteries.

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

discharge. 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 shock, do not use this instrument 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.

CALIBRATION

• Immerse the tester up to the

maximum immersion level

in pH 7 buffer (HI 7007)

• Allow the reading to stabi-

lize and using a small

screwdriver adjust the cali-

bration trimmer to read 7.0.

Calibration is now complete.

ALWAYS USE FRESH BUFFERS FOR CALIBRATION.

BATTERY REPLACEMENT

When the meter cannot be

switched on or the display

fades, pull out the battery

compartment and replace all

three 1.5V batteries, while

paying attention to their po-

larity.

Batteries should only be re-

placed in a safe area using

the battery type specified in

this instruction manual.

pHep is a registered Trademark of

"Hanna Instruments"

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