Resolution of compatibility issues between the ORP-1-3-2976 redox probe and the STi II controller.

Client :

Hello

Technical Advisor :

Hello

Client :

I just received the ORP-1-3-2976 redox probe. I'm not sure if it's compatible with the STi II controller from Irripool

Technical Advisor :

What seems to be the problem?

Client :

I connected it, calibrated it to 470mV with the buffer solution, and the displayed measurements are inconsistent

Technical Advisor :

It's working normally. If you dip the probe in the 470 mV solution, what value do you read?

Client :

The first time I read a value of 680mV

Technical Advisor :

And after calibration?

Client :

After adjusting the value to 470mV, when I place it in the pool water, I get a value of 530mV instead of being well above 630mV

Technical Advisor :

So in the 470mV solution, you read 470mV?

Client :

Yes, because I calibrated it that way

Technical Advisor :

Have you recently done a shock treatment with chlorine?

Client :

No. I changed the probe because the old one didn't seem to be working well. It was stuck at 640mV, just below the set value, and it wouldn't go up anymore. The result was an overproduction of chlorine.

Technical Advisor :

Great.

Technical Advisor :

How do you know it should be above 630mV?

Client :

Because the ta