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10.6
Calibration method Conductivity
10.6.1 Menu structure
Input
Cell const.
LIN
Temp. coefficient.
Cable offset
TDS factor
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10.6.2 Calibration
Select (CAL) to get to the menu item "Calibration" and then on to the Calibration menu:
> The calibration procedures for the respective sensor type are displayed.
Choose your desired calibration procedure by selecting the respective menu item.
The sensor must be thoroughly cleaned with distilled or deionized water prior to and
between every measurement.
Immerse the sensor into the calibration solution and wait until a stable measured value is reached.
Ensure that the calibration medium is mixed properly and watch for the temperature balance.
10.6.2.1 Data input
Under menu item "Input", you can enter and change the specific characteristics of the connected
sensor, e.g. ones that were previously defined in the lab, individually.
> Select the respective submenu item for which the settings should be changed.
Zellkonst.
nLF/LIN Tempkoef.
Kabeloffset.
TDS Faktor
An input dialog will allow you to change the respective calibration/sensor values and their
respective limits. If these are not reached or exceeded, there will be an error message,
which will ask you to enter a value within these limits.
The temperature compensation can be set as follows:
Lin:
Linear temperature compensation with adjustable temperature coefficient
nLF:
non-linear temperature compensation (for natural waters as per DIN EN 27888)
out:
For measurements without temperature compensation, the temperature coefficient
must be set to "0 %/K" under LIN.
Via (INFO) or (CAL) you select the position to change.
Via (CONF +1) or (LOG -1) you change the position.
(ON/OFF) confirms and saves your setting.
(MEAS) terminates the entry dialog without transferring the value.
Calibration
Temp.Offs.
One point
Cell constant
Temperature compensation + temperature coefficient
Cable offset
TDS factor
Automatic
CAL INFORMATION
69
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