Hanna Instruments hi 98109 User Manual

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• Switch the meter on

and remove the protec-
tive cap.

• Place the tip of the flat

electrode on the sur-
face to be measured
(skin or scalp).

• For best results, wet

the surface with dis-
tilled water or a neutral disin-
fectant.

• The supplied electrode can

also measure pH in liquids.
Immerse the tip of the elec-
trode (the bottom 2cm/1") into
solution. Stir gently and wait
until the display stabilizes.

• For best results, recalibrate pe-

riodically (see below).

• Do not be alarmed if white crys-

tals appear around the cap.

This is normal with pH elec-
trodes and they dissolve when
rinsed with water.

• NEVER IMMERSE THE ELEC-

TRODE UP TO THE CONNEC-
TOR.

• ALWAYS KEEP THE CONNEC-

TOR CLEAN AND DRY.

• After use, rinse the electrode

with water to minimize con-
tamination.

• Store the electrode

with a few drops of
HI 70300 Storage So-
lution in the protective
cap.

• Always replace the protective

cap after use.

DO NOT USE DISTILLED OR

DEIONIZED WATER FOR

STORAGE PURPOSES.

0 to 50ºC (32 to
122ºF), 95% RH

2 x 1.4V

 3000 hours

of continuous use

66 x 50 x 25 mm

(2.6 x 2 x 1")

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70 g (2.5 oz.)

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90 g (3.2 oz.)

The pH electrode is  shipped dry.

Prior to using the 

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, remove

the protective cap and recondi-
tion the electrode by soaking the
tip (2cm/1") in pH 7.01 buffer so-
lution for a couple of hours.

Perform the calibration procedure
as described below and the
meter will be ready for taking
measurements.

0.00 to 14.00 pH

0.01 pH

±0.2 pH

±0.1 pH

Manual two points

combination pH

electrode (included)

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pH

HI 70300

pH

pH

4/10

7

ON

OFF

ON/OFF

SWITCH

BATTERIES

SCREW-TYPE

CONNECTOR

HI 1413S/50

COMBINATION

pH ELECTRODE

PROTECTIVE

CAP

LIQUID

CRYSTAL

DISPLAY

BATTERIES

COVER

+ -

pH