ORP Calibration Fluid?

[slavearm]

Can we use the ORP calibration fluid in the link below to calibrate the ORP probes on the ACIII?

http://www.marinedepot.com/md_viewItem.asp?idproduct=AQ3339


Thanks,

Slavearm

 

[clp]

I haven't personally used this calibration solution, but it sounds like it is the same type as used by Coralife. The coralife solution is very inaccurate. I'd recommend using the Quinhydrone ORP calibration solution as described in the owner's manual.

Curt

 

[DrBDC]

As fast as the ORP probes get dirty and cleaned, is it necessary to be that exact to need a calibration. You would be off in just a day or so and the ORP is more of a general idea anyway. They drift up as they get dirty so that even works in favor of keeping you from overdosing ozone. The drift is 30-100 usually just over a week depending on the tank.

 

[bvoss]

I had the same question a couple of months ago. Here is the thread:

http://reefcentral.com/forums/showthread.php?s=&threadid=757278

I agree with DrBDC about the drift. That is the same problem I am having. It is still good to know that the thing is calibrated when it is clean.

 

[DrBDC]

But it doesn't really matter if it's 280 or 300, or 385 or 400. It's not like you push an absolute number like pH or 53mv salinity. As long as I'm w/in 25 I'm happy. If you're pushing an end number for ozone shutoff like 450 (depending on opinion of upper limit) then I guess it would be more crucial.