how to know if the probe is not working

how to know if the probe is not working

Hello, a pH probe or a RedOX?

avady prim ph probe

To check if your pH probe is working, you can:

1. Dip the probe in a glass of water

2. Read the pH value

3. Add vinegar to the water

4. Read the pH value again

If the pH value drops by 1 or 2 pH units then your probe is most likely working.

thank you

the device flashes 4.8 arl

after replacing the probe, the device flashes 4.8 alr

And the pH value goes down when you add the vinegar?

Yes

Of how many ?

from4.8a0.9

In tap water you measure 4.8?

no 2.4

Try to calibrate again. give me value in tap water

The values ​​are much too low

al water 4.7 with vinegar0.7

Did you do the calibration well?

I think the probe has a problem! If you order it from I will replace it for you but for that I need your email

I dipped the probe in the buffer solution I pressed callibrage and it flashes 4.8 alr

There is probably a problem with the probe