Setting Up
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6.7.4 pH measuring device
Note
Observe the enclosed information concerning the pH measuring
probe.
Fig. 27: pH measuring device
If the probe has been laid down for storage, it must be immersed vertically into a 3-
molar KCl solution (224 g of potassium chloride in 1 l of extra-pure water) for about
24 hours before it can be used. If there is an air bubble trapped in the cavity of the
membrane (5), this air bubble can be removed by shaking the sensor.
Setting up:
1. Remove the wetting cap (4) (don't remove the upper protective sheath (3)
2. Insert the probe into the sensing point (see the “System Layout” section).
3. Remove the protective shield from the plug (1).
4. Unscrew and remove the protective cap of the connector socket (2).
5. Screw in the plug (1).
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