do I need to calibrate this unit after purchase? How many seconds do you need to keep the electrode in solution to determine the ph ? I have for some reason the value is constantly changing and does not stop at any particular value. The seller for some reason, put a damp sponge in the cap with the electrode, the electrode must be kept wet or is it not important?
PH818 water quality instrument, factory has to do calibration, the customer can directly measure the goods received, or can be equipped with our buffer powder to do their own calibration or to measure whether the product is accurate, the yellow sponge inside the probe is added to the activation liquid at the factory, if subsequent Dry, you can drop a few drops of pure water to moisturize.
Thanks for the video!
How to keep ph-meter?
Спасибо за видео
thank you
thank you for your comments!
Thank!
thank you
do I need to calibrate this unit after purchase? How many seconds do you need to keep the electrode in solution to determine the ph ? I have for some reason the value is constantly changing and does not stop at any particular value. The seller for some reason, put a damp sponge in the cap with the electrode, the electrode must be kept wet or is it not important?
PH818 water quality instrument, factory has to do calibration, the customer can directly measure the goods received, or can be equipped with our buffer powder to do their own calibration or to measure whether the product is accurate, the yellow sponge inside the probe is added to the activation liquid at the factory, if subsequent Dry, you can drop a few drops of pure water to moisturize.
@@smartsensor6922 ok.thanks
kindly show how to calibrate Dissolved oxygen meter AR8210
thanks
yes we have a video,will upload later
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