Measuring the pH value
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Measuring the pH value
5.1 How to use the pH probe
5.1.1 Storage
Fig. 42: pH probe with black plug connector
(1), probe guard (2) and transparent cap (3)
CAUTION!
Ensure the glass bulb of the probe is kept moist
at all times. During storage, the glass bulb
should be covered by KCI electrolyte storage
solution.
•
Store the probe with the transparent cap,
but without the probe guard.
•
Fill the transparent cap with KCI electrolyte
storage solution before storing.
CAUTION!
Do not touch the glass bulb! Damage and abra-
sion could destroy the probe.
5.2 Prior to measurement
•
Remove the transparent, protective cap
covering the probe.
•
Rinse the probe with distilled water to re-
move any soiling.
NOTE!
If the probe was not stored in KCI solution, soak
the probe for 30 minutes in a KCI solution be-
fore using.
•
Screw the probe guard onto the pH probe.
•
Connect the pH probe to the device.
•
Power on the device.
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