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4.0 Cleaning the Bluelab 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.
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).
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.
Rinse well under fresh running water to
remove all traces of the detergent mixture.
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.
Rinse well under fresh running tap water to
remove all traces of the detergent mixture.
Calibrate pH probe to meter after cleaning.
Follow the calibration instructions on the
back of the meter, in the manual or watch
our videos online.
5.0 Storing the Bluelab pH Probe
To prepare the pH probe for storage:
Add enough Bluelab pH Probe KCl Storage
Solution into the probe storage cap to fully
submerge the pH probe tip. Then replace
the cap and store in a secure place.
DO NOT use RO (Reverse Osmosis), Distilled
or De-ionized water. Pure water changes
the chemistry in the reference, causing the
probe to die.
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pH calibration
solution
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