User Manual

<7. COMMISSIONING OF SC (Conductivity)>
7-4
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
7.1.4 Temperature compensation
l Temperature compensation
Two methods can be used: Automatic and Manual. Select Automatic when a temperature
element is used or Manual when a manually set temperature is used.
NOTE
When Manual is selected on the Temperature compensation, a process temperature should be
set in the “Manual temp.” A temperature shown on the Main display or the Home display is this
manually set temperature.
l Reference temperature
Setareferencetemperaturetowhichthemeasuredvaluemustbecompensated.Normally25°C
is used, so this temperature is chosen as the default value.
l Process temperature compensation
SelectatemperaturecompensationmethodfromamongNone,TC,NaCl,andMatrix.“None”
does not perform the temperature compensation.
l TC
This method uses the linear compensation function.
Forhowtocalculateatemperaturecoefcientofthecompensationfunction,see“lCongure
calculatedtemperaturecoefcient(TC).”onpageApp.2-1.
l NaCl
ThismethodusesthestandardtemperaturecompensationfunctionwithNaClsolution.
For details, see “lNaClorstandardtemperaturecompensation”onpageApp.2-1.
l Matrix
Thismethodusesthetemperaturecompensationmatrix,whichisatableoftheconductivity
valuesatdifferenttemperaturesandconcentrationsforaspecicsolution.Themeasured
conductivityiscompensatedbasedonthismatrixtotheconductivityatthereference
temperature.
Preparedmatrixesanduser-denedmatrixescanbeused.Twodifferentuser-dened
matrixesareavailable.
For details, see “lMatrixcompensation”onpageApp.2-3.
When the measured temperature or the precompensated conductivity is out of the range, the
temperature compensation error (warning) will be issued. This is not a device error.
Formoredetails,see“■Temperaturecompensationerror”onApp.2-8.
Any two of these three methods can be set for conductivity measurement as “Temp.comp.1” and
“Temp.comp.2”. The result of either method can be output or displayed (see “7.2 Output setup” or
“7.6Displaysetup”).
When “Measurement” is set to “Conduct. + Concentr.” for the Measurement, only one method
can be set.