Hanna Instruments Thermometer HI 7034 Manuel d'utilisateur télécharger pdf (Page 10)

• Press the COND/TEMP key to display conduc-

tivity.

• The display should read the conductivity of the

calibrating solution at the reference tempera-

ture.

E.g. using HI7030/HI8030 with a so-

lution at 18°C, the reading will be

"12.88 mS".

PROCEDURE FOR HI8820:

• Pour a small quantity of the conductivity solu-

tion into a plastic beaker.

• Immerse the conductivity probe in the solution sub-

merging the holes of the sleeve (0.5 cm below).

Make sure that no air bubbles are trapped inside

the glass sleeve. Wait for 2 or 3 minutes for thermal

equilibrium.

• Switch the instrument on by pressing the ON/OFF

key.

• Select the appropriate conductivity range

e.g. "19.99 mS" for HI7030/HI8030,

"99.9 mS" for HI7034/HI8034,

"1999µS" for HI7031/HI8031,

"199.9 µS" for HI7033/HI8033.

• Set the temperature coefficient knob to

2%°C.

HI 7030

0.5

1.5

2.5

TEMPERATURE

COEFFICIENT

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Hanna Instruments Thermometer HI 7034 Manuel d'utilisateur Page 10