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Remove storage cap from pH/soil 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/soil 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.
Note: if you need to hydrate the pH probe, soak probe tip for 24 hours in KCl storage
solution before you calibrate.
Rinse the probe tip well under fresh running tap water to remove
all traces of the detergent mixture.
Calibrate pH probe after cleaning, refer to the back of the meter.
After calibration, store pH probe in the storage cap, ensuring there is enough KCl
Storage Solution to cover the probe tip.
Bluelab pH Probe Care & Cleaning
Information sheet for Bluelab pH Probes and Soil pH Probes
Bluelab Corporation Limited 8 Whiore Avenue, Tauriko Industrial Park, Tauranga 3110, New Zealand
phone [phone] fax [phone] email [e-mail]
V01-15122013
How to clean a Bluelab pH/Soil pH Probe
Caring for pH probes
pH probes do not last forever. They age quickly through normal use.
Following these care steps will help you maintain accuracy and improve
the life of the pH probe:
› Always keep the probe tip wet. If it dries, it dies!
› Rinse the pH probe tip in clean tap water between readings for accuracy.
› Always place the storage cap back onto the pH probe after use. Ensure the cap
contains enough Bluelab pH Probe KCl Storage Solution to cover the probe tip.
› Clean and calibrate the pH probe every 30 days.
› Hydrate the pH probe in KCl storage solution if the probe tip has not always
been stored in KCl storage solution, to improve the reading response speed.
› Only use plastic containers when cleaning, calibrating and/or hydrating.
› Touching the glass bulb with your fi ngers will contaminate the glass.
› Never plunge a cold probe into a hot liquid (or vice versa). Sudden temperature
changes can permanently damage the probe.
› Do not immerse in oils, proteins or suspended solids that will leave a coating
on the glass bulb.
› Never exert sideways force, drop or knock the pH probe, the glass will break.
› Loosen the storage cap before removing or placing back onto the probe to
avoid damage.
Do you need more information?
To download product specifi cations, user manuals or for
technical advice, visit us online at www.getbluelab.com
Visit our online video library:
vimeopro.com/bluelab/videos
Bluelab Probe Care Kit - pH & conductivity
all the handy tools you need to clean
and calibrate pH probes, clean and test
conductivity probes.
Bluelab pH Probe KCl Storage Solution
to store and hydrate all Bluelab pH products.
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Bluelab Soil pH Probe
(replacement)
Bluelab pH Probe
(replacement)
NEVER store, rinse or soak the pH probe in RO (Reverse Osmosis), Distilled
or De-ionized water.
Pure water changes the chemistry in the reference, causing the probe to die.