Transmitter 9125 – Conductivity / resistivity measurement
Page 59
x
measuring range 100
μ
S/cm to 1 mS/cm :
In this measuring range the cable capacity or the
polarization are negligible and do not
perturb
the
conductivity measurement.
x
measuring range 1 mS/cm to 20 mS/cm :
When the measuring frequency is low, the
polarization becomes important and induces an
error in the conductivity measurement.
It is required to use a high frequency.
Automatic adjustment of the frequency
The 9125 adjusts automatically the measurement
frequency according to the conductivity measured, the
cable capacity and the polarization.
The cable capacity is measured in the calibration of
the first calibration point or in the menu
SERVICE\POLARIZATION\CABLE CAPA.
Polarization is regularly measured and an error
message is displayed if it is too high.
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Содержание POLYMETRON 9125
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