Measuring Operation - PeakTech 5305 A Bedienungsanleitung

4. Measuring operation

The pH meter is used to determine the pH values of various liquids.
Thanks to the display, which has a backlight, and the intuitive
handling of the device, the measurement of the pH value can be
carried out quickly and in a user-friendly manner.
4.1 Carrying out a pH measurement
In order to carry out the pH measurement, the protective cap
protecting the electrode of the probe must be removed. Then the
device must be switched on with the on / off switch. The background
lighting is permanently on during operation in order to highlight the
measured value.
If the pH meter has not been used for a long time, has been in
operation for a long time or if it has been used in environments in
which stronger external influences can occur, it is advisable to
calibrate the device (see point 4.2).
Before measuring, clean the probe with distilled water in order to
exclude 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 is
immersed in the liquid.
After completing the measurement, remove the pH meter from the
liquid and clean the probe again with distilled water.
The PeakTech 5305 A is able to measure the temperature of the liquid
during the pH measurement. The display of the temperature unit can
be changed by pressing the Temp/Cal key (°C / °F). The temperature
display can also be updated manually by pressing and holding the
Temp / Cal key (5 sec.).
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