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Chematest 35
Maintenance
9.5. Verification of the Conductivity Sensor
Calibration
solution
The 0.01 mol KCl calibration solution can also be used for a verifi
-
cation measurement.
Use the calibration solution at a temperature between 21 °C and
30 °C and allow it to reach room temperature before use.
NOTICE:
The described verification procedure only works
within the specified temperature range in which the relationship
between conductivity and temperature is linear.
Preparations
Make the following settings before performing the verification mea
-
surement:
1
From <Menu>/<Settings>/<Sensors>/<Conductivity>/<Temp.
comp.>, select the setting “Coefficient”.
2
Set the coefficient to 1.95%.
3
Create a separate ID for verification measurements and acti
-
vate query of the ID. These settings can be made under the
menu items
<Menu>/<Settings>/<Identification>/<Attributes> and
<Menu>/<Settings>/<Identification>/<ID List>.
Verification
procedure
1
Carry out the measurement as described in
.
2
Assign the previously configured ID to the measurement.
3
After completing the verification measurement, reset the tem
-
perature compensation to the previous setting.