Conditioning, Calibration, Measurement - Xylem wtw Na 800 Operating Manual

Conditioning, calibration, measurement

General informa-
tion
Before measuring
16
Conditioning, calibration, measurement
When operating the electrode ensure that
 the filling opening (1) for the electrolyte is open
 no air bubbles are in the electrolyte

the depth of immersion is within the optimum range:
Minimum depth of im-
mersion
Maximum depth of im-
mersion
1 Condition the electrode in standard solution prior to using.
To achieve a good responding behavior, the concentration of the
standard solution should be similar to the concentration expected of
the test sample.
2 For calibrating and measuring, the plug of the refilling opening of the
electrode has to be open.
The membrane and junction have to be immersed in the test sample.
3 Remove any air bubbles in the electrolyte by slightly knocking
against the shaft.
4 Connect the electrode to the meter
(see operating manual of your meter).
5 Calibrate (see operating manual of your meter).
1 Filling opening
2 Filling level of the electrolyte
1 1
3 Junction
2
3
The junction (3) must be covered
Approx. 1 cm below the fluid level (2) of the
electrolyte
Na 800
ba77237e02 12/2021