8
OPERATIONAL GUIDE
• Each meter is supplied complete with a 9V battery. Remove the
battery compartment cover on the back of the meter (see page 16).
Install the battery while observing its polarity.
• Connect the probe to the meter securely
by aligning the pins with the socket and
pushing the plug in.
• Make sure that the meter has been cali‑
brated before taking any measurements
(see “Calibration” section).
• Immerse the conductivity probe into
the sample, with the holes on the shaft
completely submerged.
If possible, use plastic beakers or con‑
tainers to minimize any EMC interference.
• Tap the probe lightly on the bottom of the beaker to remove any
air bubbles which may be trapped inside the PVC sleeve.
• Turn the instrument on by pressing the
On/Off
key.
For HI8633 and HI8734:
• Take the temperature of the solution
with a ChecktempC or another accurate
thermometer following LCD indication.
• Press and hold down the
Temp
key to display the temperature and
adjust the temperature knob to that of the solution e.g. 20 °C.
For HI8733:
• Adjust the TEMPERATURE COEFFICIENT
knob to 2% to compensate for the
temperature effect of average solutions
(to determine exact value for a particular
solution, see page 15).
• Select the appropriate measurement range.
