Xylem WQL-pH pH DATALOGGERS - Manual (Page 33)

WQL-pH Calibrating for pH measurements
107 ba75821e01 10/2009
5.2 Calibration settings
Buffer sets The following buffer sets can be selected:
z
NIST/DIN
z TEC
Selecting the
buffer dataset
You can select the buffer dataset NIST/DIN or TEC.
1 In the Device menu, select the menu item, Calibrate.
2 The calibration window appears.
3 In the Buffer set menu, select and confirm the required buffer
set with a mouse click.
The selected setting is immediately active.
Note
During calibration and direct measurement make sure that neither the
calibration or measurement solution nor the logger shaft are electrically
grounded (e.g. with a metal stand). Otherwise, this could result in erroneous
values.