Xylem WQL-Cond CONDUCTIVITY DATALOGGERS - Manual (Page 36)

Calibration in control standard (determining the cell constant) WQL-Cond
132 ba75822e01 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.