Hanna Instruments Thermometer HI 7034 Manual de usuario descargar pdf (Pagina 6)

CONDUCTIVITY MEASUREMENTSCONDUCTIVITY MEASUREMENTS

CONDUCTIVITY MEASUREMENTS

Make sure that the instrument has been calibrated before taking

conductivity measurements (see page 8 for calibration procedure).

Connect the probe to the back of the meter and

switch the instrument on by pressing the ON/OFF

key. If possible, to minimize any EMC interfer-

ences, use plastic beakers for the solutions.

FOR HI8819:

••

• Immerse the probe in the solution submerging

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

the probe lightly on the bottom of the recipi-

ent to remove any air bubbles which may

have being trapped inside the sleeve.

••

• Take the temperature of the solution with a

CHECKTEMP or a glass thermometer.

••

• Press the COND/TEMP key to select tempera-

ture mode.

••

• Adjust the TEMPERATURE knob until the LCD

displays the temperature of the solution.

••

• Press the COND/TEMP key to select the con-

ductivity measurement range.

••

• If the display shows only a "1", there is an

over-range condition. Select the next higher

range.

••

• The conductivity reading displayed has been manually compen-

sated for temperature variations.

••

• After the measurement is completed, the in-

strument should be switched off by pressing

the ON/OFF key and the probe should be

cleaned (see page 15 for cleaning procedure).

°C

TEMPERATURE

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Hanna Instruments Thermometer HI 7034 Manual de usuario Pagina 6