Meter Maintenance

For pH & conductivity electrodes

“We have not needed to re-calibrate our pH meters for over 3 years!”

Analytical Laboratory

In many situations, Flairform’s electrode cleaner eliminates the need to re-calibrate.

Electrode cleaners are usually made from acids, alkalis or chelates. However, these chemicals are largely ineffective for cleaning electrodes that have been contaminated by nutrient solutions.

Flairform’s Electrode Cleaner is:

• Suitable for both pH & conductivity meter electrodes.
• Removes both inorganic and organic contamination.
• Restores electrode accuracy and response time.
• Maximizes electrode life-span.

Unlike with other cleaners, the electrode does not require ‘rest’ time after being cleaned.

Easy to use:   Soak electrode for 5 minutes.

Electrode care:  Avoid placing electrodes in oily solutions as they can “coat” the electrode.  Further, avoid measuring (or leaving electrodes for too long) in harsh chemicals. For example, highly caustic or concentrated solutions such as raw nutrient, pH Up and silica additives.

Dry storage of pH electrodes is the most common cause of pH meter failure in hydroponics!

“pH electrodes last several years when stored properly”

pH electrodes should be stored in a specialized solution when not in use. This helps prevent dehydration of the glass electrode and porous frit (or wick) while preserving the electrode’s filling solution.    pH buffers and distilled water are not suitable for storing pH electrodes as they can upset electrode calibration.  Electrode storage solutions are carefully structured formulations that do not interfere with the chemical composition of the liquid/gel that is contained within the electrode.

Flairform’s pH Electrode Storage helps:

• Maintain electrode accuracy and response time.
• Eliminate reading ‘drift’.
• Maximize electrode life-span.

Conductivity EC/TDS/PPM Probe Care Kit

Everything you need to clean and test conductivity (ppm/EC) / temperature probes

The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and provide improved growth.

Proper ppm/EC probe maintenance also ensures you maximize the life of the probe and instrument.

The probe surface is where the instrument takes the reading of the solution. If the probe face is dirty or contaminated, the readings may be inaccurate. Much like the windshield of a car, if it’s dirty you can’t see out! If the probe face is dirty, it cannot read the solution.

A tip… if the conductivity reads low, the probe needs cleaning.

You can re-stock your probe care kit with bottles of Bluelab Solutions.

Probe care instructions

• 2 x 20ml single-use Bluelab 2.77 EC Conductivity Standard Solution
• Plastic cup
• Bluelab Conductivity Probe Cleaner
• Bluelab Chamois (conductivity probe cleaning instrument)

Everything you need to clean, calibrate and maintain your pH and conductivity probes.

Care, hydration and calibration – in one kit

Maintaining your Bluelab pH and conductivity probes

To ensure ongoing accuracy and longevity, we recommend that you maintain your Bluelab probes on a regular basis. 

While no calibration is required for conductivity and temperature, you will need to calibrate your pH probe. Your Probe Care Kit contains sachets of pH 4.0, pH 7.0 and KCl solutions for calibrating and storing your pH probes, as well as 2.77 EC standard solution for testing your conductivity probe after cleaning. This kit also includes probe cleaner and cleaning instruments. 

You’ll have everything you need to clean, calibrate and hydrate your probes – in one compact and affordable kit. 

Improve product longevity with regular calibration 

How to calibrate your Bluelab pH products

If you want to improve your Bluelab pH product’s accuracy and longevity, you’ll need to get into the habit of regular cleaning and calibration.  

Luckily, the easy-to-follow calibration process is the same for all Bluelab pH probes and pens.  

After cleaning your pH probe, you’ll need to calibrate it with pH calibration solutions at two reference standards - 4.0 and 7.0 pH. Once calibrated, you can start measuring pH again immediately. You’ll need to recalibrate whenever you clean your pH probe and when your meter alerts you that a calibration is needed.

Stock up on solutions 

Your one-stop pH and conductivity shop

Need to get more solutions? Stock up on Bluelab pH Probe KCl Storage Solution, Bluelab pH 4.0 and pH 7.0 Calibration Solutions and Bluelab 2.77 EC Conductivity Standard Solution; these are all available in numerous sizes.   

You can also expand your toolkit with our pH and EC accessories and replacement parts, including replacement pH and conductivity probes, storage caps and carry cases. 

Browse through our online shop to find exactly what you need. 

Your Bluelab Probe Care Kit – pH and Conductivity contains: 

• Probe care instructions 
• 20 ml single-use Bluelab Solution Sachets - two each of: pH 7.0, pH 4.0, KCl and 2.77 EC standard solution 
• Three plastic cups 
• Bluelab pH Probe Cleaner 
• Bluelab Conductivity Probe Cleaner 
• Toothbrush for cleaning your pH probe 
• Chamois for cleaning your conductivity probe

Flairform's buffers are formulated with NIST specified ingredients. Stabilised to resist algae or growth formation: Growths' can contaminate pH electrodes which in turn affects the "slope" value beyond the software's ability to compensate.

A solution for the calibration of pH meters at pH 7.0

• Size - 250ml

Hygen pH Buffer 7 is important as the upper calibration point in the "two point" calibration of electronic meters. Regularly calibrate your pH meter with both pH Buffer 4 and pH Buffer 7 calibration solutions to ensure that your meter is operating with precision and accuracy between pH 4 and 7.

You should monitor the pH on a daily basis - as plants grow, their demand for nutrients increases. This means the pH can fluctuate, therefore it should be tested and adjusted to maintain an optimum working nutrient solution. Nutrient requirements vary from plant to plant, meaning the ideal pH for nutrient uptake varies from plant to plant also.

How to use:

• Pour some of the solution in to a clean container, enough to cover the probe.
• Clean and sanitize the pH probe
• Insert the probe to the solution
• For Auto calibration meters just press on the pH7 button on your meter.
• For manual calibration meters you will need to manually adjust the pH reading to 7.
• Please check your pH meter manual for more information on how to calibrate your meter.