Advertisement
Quick Links
FAQ and troubleshooting for the Bluelab pH
Pen
Find answers and solutions to common questions for the Soil
pH Pen, pH Pen, and Bluelab pH probes
In this guide:
•
General questions
•
Understanding error messages
•
Troubleshooting
General questions
My pH product won't calibrate, what should I do?
The first step is to make sure the glass tip of the probe is both well hydrated and clean.
•
Learn how to hydrate your pH pen in our guide
•
Learn how to calibrate your pen in our guide
If, after both hydrating and cleaning, your pH pen still won't calibrate, it may be at the end of its
life. Please reach out to our support team if you have further questions.
My pH reading is stuck on 7 pH, what should I do?
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 pH pen likely needs replacing.
My pH probe has accidentally dried out, what should I do?
The probe must be rehydrated for 24 hours in KCI storage solution (never use RO, distilled
or deionised water). Next, carry out a calibration to check the probe hasn't suffered permanent
damage.
There is a salt crust on my probe – why?
Both the pH pen/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.
Advertisement
Related Manuals for bluelab pH Pen
Summary of Contents for bluelab pH Pen
- Page 1 Learn how to calibrate your pen in our guide If, after both hydrating and cleaning, your pH pen still won’t calibrate, it may be at the end of its life. Please reach out to our support team if you have further questions.
-
Page 2: Understanding Error Messages
Bluelab's pH products are charged with reference material which expends over time and use. The average life span of a pH pen is approximately 18 months. Good care will help to maintain your pen. Follow our guides to proper hydration, regular cleaning and calibration. - Page 3 Follow the cleaning and Probe not hydrated or clean calibration steps Temperature under range Probe damaged Replace the pH pen Temperature over range Calibrate to pH 7 first, then to Wrong calibration sequence pH 4 pH under range pH over range...
-
Page 4: Troubleshooting
Follow the cleaning and Probe not hydrated or clean calibration steps pH calibration failed Probe damaged. Replace the pH pen Check for broken glass on the tip of the pen’s pH probe. The pH probe may be damaged Consider replacing your pH pen. - Page 5 24 hours and Drift – readings slowly retest. Don't measure proteins varying Wick contaminated or blocked or oils with the pH pen. You may need to replace the pH pen. Glassware aged Replace the pH pen Glassware not clean...
- Page 6 Press the power button. To turn pen off, press and hold the power button until “OFF” is displayed. Note: The pen will automatically turn off after 4 minutes to conserve battery power. 2. Measure pH Remove the storage cap, place probe in solution and wait for the reading to stabilise. 3.
- Page 7 Important: Keep your probe tip wet at all times to avoid permanent damage. If your readings aren't what you expect, or the pH pen won't take a reading, follow our troubleshooting and FAQ...
- Page 8 Use the pH pen to quickly and accurately know if your solution is too acidic or alkaline, or too hot or cold. Designed for everyday use, the Bluelab pH Pen helps you to keep your plants in the optimal pH and temperature range so that your plants can thrive.
-
Page 9: Get Started
Selectable units for °C and °F • Register your 1-year limited written warranty with Bluelab • Download a PDF of the technical specs in English • Download a PDF of the Bluelab pH Pen manual in your language: English German Spanish Latin American Spanish Dutch...
Need help?
Do you have a question about the pH Pen and is the answer not in the manual?
Questions and answers