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4. Operation

The pH meter is used to detect pH values of different liquids. By the
display, which has a backlight, and the intuitive handling of the
device, it is easy to determine the desired pH values.
4.1 PH measurement
To perform the pH measurement, the protective cap that protects
the electrode of the probe, must be removed.
Then the device must be switched on with the on / off switch. The
backlight is permanently on during operation to highlight the
measured value.
If the pH meter has not been used for a longer period of time or if it
has been used in environments where external influences can be
greater, it is advisable to calibrate the instrument (see point 4.2).
Clean the probe with distilled water before measuring to avoid
possible falsifications of the measured value. Carefully dry the
probe with a cloth.
Now the probe of the pH meter can be immersed in the liquid to be
measured. Make sure that only the bottom 4 cm of the probe are
submerged in the liquid.
When the measurement is complete, remove the pH meter from the
liquid and rinse the probe again with distilled water. If no further
measurements are to be made, re-insert the protective cap of the
electrode onto the end of the probe.
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