User Guide

Accessories needed:

• Use any calibration solution within the meter's range. The

solution should ideally be close to the samples being mea-

sured. Use for example HI 7030 or HI 8030, 12880 µS/cm

(=12.88 mS/cm) conductivity solution for HI 8033, HI 8633,

HI 8733 and HI 933000 and HI 7032, 1382 mg/L

(=2764 µS/cm) TDS solution for HI 8734

• ChecktempC or an accurate thermometer with 0.1°C resolution

(not necessary for HI 8733 and HI 933000)

• a small screwdriver.

PROCEDURE FOR HI 8033

• Pour sufficient quantity of a conductivity

calibration solution (e.g. HI 7030/

HI 8030) into a beaker to cover the holes

on the probe. If possible, use plastic bea-

kers to minimize any EMC interference.

• Immerse the conductivity probe, making

sure that holes are completely submerged,

and the ChecktempC in the solution.

• Wait for a couple of minutes for thermal

equilibrium to be reached.

• Tap the probe on the bottom, then shake it while rotating to

make sure no air bubbles remain trapped in the sleeve.

• Record the temperature of the HI 7030/HI 8030 calibration

solution from the ChecktempC (e.g. 18°C).

• Turn the °C knob to 18°C.

• Turn the rotary knob to select 19990 µS/cm

range.

• Turn the k% calibration knob until the display shows the conduc-

tivity reading at 25°C (see the conductivity vs. temperature chart

on page 18). E.g. @ 25°C, 12880 µS/cm = 12.88 mS/cm.

I 7

°C

CALIBRATIONCALIBRATION

CALIBRATION

µS

0-199,9

µS

0-1999

µS

0-19990

salinity

0-19,990

ppm

CaCO

OFF