Відео

Hello the pH meter is taking long torecord any reading what could be the proble?

how do i fix E3, E4 and E13

I'm currently trying to calibrate, it is not calibrating....what could be the problem

This pH meter is not user-friendly, is very hard and confusing to Calibrate!!!!!

How do I remove error code E4 and E3

thanks for this sir

Shouldn't you calibrate the 7 solution first as the base? Or does it not matter for this meter?

Please, help me! ¿Which buffer solutions did you use to calibrate pHmeter?, ¿What's their names?