Problem calibrating Aquacontroller pH probe.

Wrench · 09/13/2010, 05:43 PM

I've got an ACJR. I tried to calibrate my pH probe for use in my calcium reactor. I went through the procedure and the box said the probe was defective. I dug out another probe, same thing. I bought a new probe from Bulk Reef Supply.....same thing. So I called Neptune and they ran me through some things and they said the probe must be defective. I find that hard to believe seeing as how it was the same result with all three probes.

Has anyone experienced this before?

scsuboy18 · 09/14/2010, 08:14 AM

I have had that experience before. However, I think it was because when I was doing the calibration, it was becuase I wasn't allowing the probe to "settle" long enough. I leave the probe in the calibration packets until it stops "settling" and remains on a stationary number. I then calibrate to the next pH adjustment, wait for it to stop settling adn voila, the AC updates. I have an AC3, not sure if that makes a difference or not.

Wrench · 09/14/2010, 06:19 PM

I will try to let it settle a little longer. I usually wait until it has settled for 20 seconds or so.

Shard · 09/14/2010, 08:45 PM

I have the Apex and I let mine settle for a couple of minutes, swirling it on occasion. Try that, because you really want the numbers to be stable before you enter the value for calibration.

09/13/2010, 05:43 PM	#1
Wrench Registered Member Join Date: Nov 2006 Location: Maryland Posts: 2,004	Problem calibrating Aquacontroller pH probe. I've got an ACJR. I tried to calibrate my pH probe for use in my calcium reactor. I went through the procedure and the box said the probe was defective. I dug out another probe, same thing. I bought a new probe from Bulk Reef Supply.....same thing. So I called Neptune and they ran me through some things and they said the probe must be defective. I find that hard to believe seeing as how it was the same result with all three probes. Has anyone experienced this before?

09/14/2010, 08:14 AM	#2
scsuboy18 Registered Member Join Date: Jun 2003 Location: Atlanta, GA Posts: 241	I have had that experience before. However, I think it was because when I was doing the calibration, it was becuase I wasn't allowing the probe to "settle" long enough. I leave the probe in the calibration packets until it stops "settling" and remains on a stationary number. I then calibrate to the next pH adjustment, wait for it to stop settling adn voila, the AC updates. I have an AC3, not sure if that makes a difference or not. __________________ "If there was hope, it must lie in the proles, because only there, in those swarming disregarded masses…could the force to destroy the Party ever be generated." - George Orwell, 1984 Current Tank Info: N/A - about you get back into hobby

09/14/2010, 08:45 PM	#4
Shard Registered Member Join Date: Aug 2008 Location: Valdosta, GA Posts: 624	I have the Apex and I let mine settle for a couple of minutes, swirling it on occasion. Try that, because you really want the numbers to be stable before you enter the value for calibration. __________________ University: Biology M.S. - 2012, M.D. 2015 Tanks: (2) 28g Nanocube 150w MH HQI - 18w Actinic CF 29g Blue Spotted Jawfish Tank

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09/14/2010, 06:19 PM	#3
Wrench Registered Member Join Date: Nov 2006 Location: Maryland Posts: 2,004	I will try to let it settle a little longer. I usually wait until it has settled for 20 seconds or so.