Hanna Instruments hi 98103 Manual Do Utilizador

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CALIBRATION:
• Dip the tip of the elec-

trode (bottom 4cm/1½")
in a sample of pH 7.01
buffer at room temper-
ature. Allow the read-
ing to stabilize.

• Use a small screwdriv-

er to adjust the pH 7
trimmer until the dis-
play reads "7.01".

• Rinse the electrode

with water and dip it in
a sample of pH 4.01
(or 10.01) buffer solu-
tion. Allow the reading
to stabilize.

• With a small screwdriv-

er adjust the pH 4/10
trimmer until the dis-
play reads the chosen
buffer value.

• Calibration is now complete.

ALWAYS USE FRESH

BUFFERS FOR CALIBRATION

Replace the batteries when the
display fades, or 

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cannot

be switched on.
Remove the battery
cover on the back
of the meter. Insert
2 new 1.4V batter-
ies 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.

Combination pH
electrode 12 mm di-
ameter with screw-
type connector

Combination pH
electrode 12 mm di-
ameter with BNC
connector

Combination pH
electrode, 9 mm di-
ameter with screw-
type connector

HI 70300M Storage solution

(230 mL)

HI 76504/P2 2x1.4V alkaline batter-

ies

HI 70000P Electrode cleaning/

rinse solution (25 pcs.)

HI 70004P pH 4 buffer solution

(25 pcs.)

HI 70007P pH 7 buffer solution

(25 pcs.)

HI 70010P pH 10 buffer solution

(25 pcs)

ISTRCHKR 02/97

HI 7007

HI 7004

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. During operation of instrument, ESD
wrist straps should be worn to avoid possible damage
to the pH electrode by electrostatic discharges. 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.

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