3 calibrating (manual), Calibrating (manual) – Xylem WQL-Cond CONDUCTIVITY DATALOGGERS User Manual
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Calibration in control standard (determining the cell constant)
WQL-Cond
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03/2011
6.3
Calibrating (manual)
Preparatory
activities
Calibration
Note
We recommend to always calibrate with the protective hood screwed on so
the measuring cell is protected. Use a stand as necessary.
Note
For manual calibration with a control standard, the temperature dependent
conductivity values of the standard are required. Normally a table with these
values is enclosed with the control standard.
z
Prior to manual calibration, please switch off the temperature
compensation (menu, Device / Set).
z
Determine the conductivity of the used standard solution using the
temperature measured by the logger during calibration (interpolate the
table values as necessary).
z
After the calibration is completed, restore the required setting for the
temperature compensation.
1
Connect the WQL-Cond logger to a USB port of your PC with the
USB cable.
2
Keep a control standard of your choice ready.
3
In the Device menu, click the menu item, Calibrate.
The calibration window appears.
4
Immerse the logger in the control standard.