Yes or No to temperature compensation

[Grayout]

I've searched through the Neptune owner's manual several times and just can't seem to find my answer. Hopefully, my question will be an easy one to answer.

I'm currently using a AquaController II and have a question regarding setting ORP and PH.

Within the Setup section of the controller one is able to calibrate ORP and PH. Also, within that section the controller asks whether or not you wish to compensate for temp (PH) and PH (ORP). The choices given are either yes or no. What should I select?

I've noticed that if yes or no is selected, the readings for PH and ORP are dramatically different.

Thanks in advance.

 

[Grayout]

Looks like I found my answer on a previous post. I'll go with the off setting for both.

"There is a small variance in the pH reading depending on the temperature of the water. Turning compensation on corrects for this variance. In a typical reef tank the temperature change is so small that the effect is negligible. For reef tanks I recommend just leaving it off.
pH and ORP are inversely correlated. For every one unit change in pH there is about a 58 mV change in ORP. Turning pH compensation on corrects for this variation. However, the industry norm is for compensation to be off. So if you want to compare your ORP readings to books, and others leave it off. I recommend leave this setting off as well."

Curt

 

[gweezpie]

Thanks this was what I was looking for.