Quote:
Originally Posted by slief
ORP calibration on the Apex is not needed. As mentioned above, you cannot calibrate using standard calibration solutions. You need to get quinhydrone and Neptune does not supply that. You have to find it online and it's tough to find. Also as noted, ORP probes take weeks to settle in during which time, they will continue to climb until the are settled in. If you mistakenly started the ORP calibration process, you may have messed up the default calibration process in which case a complete factory reset may be needed in order to restore the ORP calibration to default. That or you will need the pH 4 solution and quinhydrone. Once your ORP probe settles in, you can use the 400mv solution to verify the calibration by placing the probe in the solution and leaving it in there for several hours to see what it reads.
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Thank you very much for your comments. ORP has been going up from time to time, today is one week after instalation so I hope I didnīt messed up the configuration.
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"To understand the bonds that unites us to all the living beings and to better judge the miracle of our own life, let the first wave of the sea break over you"
Jacques Ives Cousteau
Current Tank Info: 110 gal SPS tank, 3 G4 Pro Radions, Geo 618 calcium reactor, 2 x MP 40 Vortech, Vectra M return pump, Octopus Elite 200-int skimmer, APEX controller
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