6.0 Probe Care & Maintenance
6.1 Cleaning the pH probe
To ensure accurate readings the pH probe tip needs to be rinsed in water after
each use and cleaned prior to calibration using the following instructions.
The storage cap must always be put back on after cleaning. Always ensure it
contains enough Bluelab pH Probe KCl Storage Solution to cover the probe tip.
Remove storage cap from pH probe
Hold the top of the storage cap, twist the cap
to loosen then remove.
2. Rinse pH probe tip under fresh tap water.
Never use RO (Reverse Osmosis), Distilled or
De-ionized water
Fill a small plastic container with clean
tap water.
Add a small amount of Bluelab pH Probe
Cleaner or mild detergent (dishwashing
liquid).
4. Gently stir the probe tip in the mixture.
Ensure that you do not ‘knock’ the pH probe
on the side of the container as this may
cause damage to the probe.
If the probe tip requires removal of heavy
contamination: Gently brush around the
glassware with a few drops of Bluelab pH
Probe Cleaner or mild detergent
(dishwashing liquid) and a soft toothbrush.
Rince well under fresh running tap water
to remove all traces of the detergent
mixture.
7. Calibrate after cleaning, see section 2.6.7.
After calibration, store pH probe in the
storage cap, ensuring there is enough KCl
Storage Solution to cover the probe tip.
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