Frequently Asked Questions - bluelab OnePen User Manual

7.3 Frequently asked questions

Question
My Bluelab OnePen™ product
won't calibrate, what should I
do?
My pH reading is stuck on 7 pH,
what should I do?
My pH probe has accidentally
dried out, what should I do?
There is a salt crust on my
probe – why?
How long will my Bluelab
OnePen™ Replacement Probe
last?
What is KCl Storage Solution?
My Bluelab OnePen™ won't
pair with Edenic?
Answer
The first step is to make sure the glass bulb of the probe is both well hydrated and
clean.
See sections 3.1 and 3.2
If, after both hydrating and cleaning, your OnePen™ still won't calibrate, the
replacement probe may be at the end of its life. Please reach out to our support
team if you have further questions.
Inspect the glassware for damage. If the pen reading is stuck on 7 pH (or close to
that), it is likely the glassware is damaged. The replacement probe likely needs
replacing.
The probe must be rehydrated for 24 hours in KCI storage solution (never use RO,
distilled or de-ionised water). Rinse the probe in fresh tap water add fresh KCl
Storage Solution to the sponge in the storage cap before replacing the cap. Leave
for 24 hours before calibrating the probe to two points following the calibration
instruction in section 2.5 of this guide.
Both the pH probe and the storage cap contain KCl (Potassium Chloride) solution.
The result of a small level of evaporation of KCl is the formation of a salt crust as KCl
is a type of salt.
This salt crust is normal and will not harm the probe or meter. Gently wash the salt
off under fresh running water.
It is essential to ensure that your probe always has sufficient KCl in the storage cap
to remain hydrated.
Bluelab's pH products are charged with reference material which expends over time
and use. The average life span of a OnePen™ Replacement Probe is approximately
18 months. Good care will help to maintain your pen. Follow our instructions to
proper hydration, and regular cleaning, sections 3.1 and 3.2 in this guide.
The OnePen™ probe has a 6-month warranty so if you encounter any issues with
your current unit, please feel free to reach out to us for support.
Our Bluelab pH Probe KCl (Potassium Chloride) Storage Solution is a storage
solution designed specifically for use with Bluelab Replacement Probes or pH
Probes.
Storage solution is used to ensure a pH probe is kept in ideal conditions during
storage, while the probe is not in use.
Make sure you have Bluetooth switched on, on your mobile device. Ensure
permission for Edenic to use Bluetooth has been allowed. Confirm that your
OnePen™ is not currently paired with another mobile device, the Bluetooth icon
should be flashing. When pairing make sure both OnePen™ and mobile device are
within 10 meters of each another and the OnePen™ is turned on.