**Neptune AquaController** - Page 25

Mattfish · 06-25-2008, 01:32 AM

Well, the good news is now you know for sure.... not as much fun as it all working, of course. Glad you got it figured out.

thelastmucci · 07-25-2008, 07:38 PM

question: MY LFS said today that in order to calibrate the PH probe the Temp probe should be in the same solution...is he right...I can't find anything about on the neptune site or anywhere for that matter. I've already calibrated it 4 times but I think it's still messed up. (this was reading 8.0 when the tank was about 8.8) Thanks guys and gals.

Snelly40 · 07-25-2008, 08:45 PM

my AC jr is the best thing i have for my tank!!!!
the temp is always at 79.3-79.5 thats a variance i can deal with!!!
the pumps are on variable so they go on and off and it has nice flow and it keeps things stirred up and the fish sit and sway in the stream!!!
It is a great great investment. no more bulky times for my lights either!!!

Octoman · 07-25-2008, 11:44 PM

Quote:

Originally Posted by thelastmucci

question: MY LFS said today that in order to calibrate the PH probe the Temp probe should be in the same solution...is he right...I can't find anything about on the neptune site or anywhere for that matter. I've already calibrated it 4 times but I think it's still messed up. (this was reading 8.0 when the tank was about 8.8) Thanks guys and gals.

The pH varies with the temperature of the water. The ACjr has the option to use temperature compensation that adjusts for this variation. However, the variation is on the order of ~ 0.1 for every 20 degrees F. That's not enough to account for the variation of 0.8 that you're seeing.

Is your probe located near any pumps or other electrical devices? Does the cord for the pH probe cross any other power cords? An electrical field can mess up your readings...

You can calibrate with the Temp probe in the solution, but you need the temp probe to be clean and dry before you put it in or it will mess up the solution. If the solution is close to the same temp as the tank, you should get a pretty accurate calibration (this is what I do...). Or, you can turn temp compensation off and calibrate with the solution at 77 degrees (or whatever temp it says on the Cal solution package).

06-25-2008, 01:32 AM	#361 (permalink)
Mattfish King of all I survey Join Date: Mar 2008 Location: Cupertino, CA Posts: 190 View Gallery Karma Komment Add yours!	Re: Neptune AquaController Well, the good news is now you know for sure.... not as much fun as it all working, of course. Glad you got it figured out. __________________ Mike - for the Mattfish Family - Mike, Pum and Matthew the little fish "A billion here, a billion there, pretty soon it's real money." Sen. Sam Rayburn on the 1964 Congressional Budget, or, anyone with a tank. "I can't complain, but sometimes I still do." Joe Walsh on life. "Vote early, vote often." Mayor Wild Bill Thompson of Chicago on elections during the Capone era.

07-25-2008, 08:45 PM	#363 (permalink)
Snelly40 Golden Moray Join Date: Apr 2006 Location: Charlotte, NC Posts: 2,797 View Gallery Karma Komment	Re: Neptune AquaController my AC jr is the best thing i have for my tank!!!! the temp is always at 79.3-79.5 thats a variance i can deal with!!! the pumps are on variable so they go on and off and it has nice flow and it keeps things stirred up and the fish sit and sway in the stream!!! It is a great great investment. no more bulky times for my lights either!!! __________________ Snelly's 90gal Reef-O-Rama *Member-"Crabs Are Evil" Society* In Hoc Signo Vinces

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