FAQs

Default solution folder, feel free to edit or delete it.

The Easiest Way to Tell whether a pH Tester is Accurate or Not?
The only reliable way to determine whether a pH tester is accurate or not is to test it in standard solutions. Just like the only way you can tell if a scal...
Thu, Jul 19, 2018 at 11:01 PM
How to Choose an Appropriate pH Electrode
Regular pH electrodes like 201T-F, 201T-S, or most the glass bulb probes in most pocket testers are only suitable for testing general water solutions — medi...
Fri, Jul 13, 2018 at 5:58 AM
How to Properly Use Standard Calibration Solutions?
The quality of your standard solutions is fundamental to the accuracy of your measurement. No matter how good the meter is, if the standard is messed up, re...
Fri, Jul 13, 2018 at 6:20 AM
How often should I calibrate my pH meter?
The frequency that you should calibrate your pH meter depends on many factors such as the type of your test samples, performance of electrodes, and the requ...
Thu, May 11, 2017 at 11:24 AM
How to deal with Er1 and Er2 when doing calibrations
Er1 will usually appear on the screen when users dip the probe into the wrong calibration solutions. For example, for pH calibration, the 1st point calibrat...
Thu, Jun 22, 2017 at 3:38 PM
How long can I use the same buffer solutions for calibrating?
For pH calibration buffer solutions, we recommend that users pour the solution in an additional cup or calibration cup if given (and keep the cup closed w...
Wed, Dec 7, 2016 at 1:05 PM
Is the pH meter pre-calibrated?
All of our instruments are pre-calibrated before they are shipped. An easy determination is to look at the bottom of your LCD screen (follow manual instru...
Wed, Dec 7, 2016 at 1:07 PM
What are the "white salts" oozing out of the probe and does it mean my meter is damaged?
The "white salts" are the Potassium Chloride (KCL). They can come from the storage solution in the cap or the inner reference solution in the pr...
Sun, Sep 10, 2017 at 5:46 PM
Should I always keep my pH electrode soaked in storage solution?
The only electrodes that must be always stored in storage solutions and can be damaged if stored dry are the probes that use Polymer electrolyte, such as ...
Thu, Jun 22, 2017 at 3:40 PM
EC/TDS in Hydroponics
Electrical Conductivity (EC) is the ability of a solution to conduct electric current. Therefore conductivity is used to measure the concentration of dissol...
Thu, Jun 22, 2017 at 3:37 PM