Hanna Instruments hi 8819 사용자 설명서

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Remove the instrument from the packing material and examine it to
make sure that no damage has occurred during shipping. If there is
any damage, notify your Dealer.
Each meter comes supplied with a conductivity probe (HI7685  for
HI8819 or HI7687 for HI8820), a voltage adapter, a dust cover and
an instruction manual.
Note::::: Save all packing material until you are sure that the instrument

functions correctly. All defective items must be returned in the
original packing with the supplied accessories.

HI8819  and  HI8820  are digital bench-top multirange conductivity
meters designed for simplicity of use in measuring electrical conduc-
tivity in liquids. Four ranges of conductivity measurements are provided
to cover every application from deionized water to brine. The conduc-
tivity probe does not require changing or re-calibration when switching
from one range to another.
The probe is made of glass with 4 platinum rings that are corrosion
resistant. It is also suitable for measuring conductivity of liquids  in
small sample sizes, and comes with a 1 m (3.3') cable.
The temperature effect can be compensated through a knob on the
front panel of HI8819.
With HI8820, the 4-ring probe has a built-in temperature sensor that
automatically compensates for temperature changes in the liquid
tested. The temperature coefficient can be adjusted from 0 to 2.5%.