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02/22/2018, 04:14 PM | #1 |
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Apex Salinity Probe Calibration
Probe is about 6 months old. Used Milwaukee digital electronic Salinity refractometer. The values are a few numbers off. Can I just manually set the Apex probe to match the Milwaukee?
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03/09/2018, 10:32 AM | #2 |
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Did you get answer?
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03/09/2018, 03:39 PM | #3 |
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not really You follow the initial set up as if it was new with a Neptune Systems
CONDUCTIVITY CALIBRATION SOLUTION - 53.0 MICROSIEMENS |
03/09/2018, 04:22 PM | #4 |
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The only way I've been able to get mine to calibrate is to verify the tank water is exactly 53000, and then calibrate with my probe in the tank, not solution.
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Current Tank Info: LeeMar Rimless (40x24x22), ATI 8x39 Dimmable w/Reefbrite XHO, 2x Vortech MP40w QD w/ Battery Backup, Apex Gold, Trigger Systems Ruby30S, Reef Octopus POV-DC1 w/Auto Waste Collector |
03/09/2018, 05:43 PM | #5 |
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53 Microsiemens should equal 33.9 ppm so if you use tank water at that conc about 34ppm it should be the same. I am going to try this tomorrow and will post the result
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03/09/2018, 08:34 PM | #6 |
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I like this calculator which I've found to be accurate. It calculates it as 34.95 or 1.0263.
https://www.hamzasreef.com/Contents/...Conversion.php
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Current Tank Info: LeeMar Rimless (40x24x22), ATI 8x39 Dimmable w/Reefbrite XHO, 2x Vortech MP40w QD w/ Battery Backup, Apex Gold, Trigger Systems Ruby30S, Reef Octopus POV-DC1 w/Auto Waste Collector |
03/10/2018, 04:08 AM | #7 | |
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Quote:
My refractometer shows 1024 and I'd be happy if I could just tell the apex to use that measurement. Bit of a pain after spending $800 if you ask me. Appreciate any help.
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03/10/2018, 07:50 AM | #8 |
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I long ago gave up caring what the apex salinity probe reported. I’ve recalibrated a few times. Get yourself a reliable refractometer or digital devise and move on. I settled on the Pinpoint probe. Good luck.
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03/10/2018, 09:07 AM | #9 |
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this video makes some interesting points about the trapped air in the probe tip as a problem and also starting with a really dry probe,
https://www.youtube.com/watch?v=6pxUb2-LaEo The guy seems to have info others have not given. |
03/10/2018, 10:45 AM | #10 | |
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I just think it's ridiculous that this $800 device makes it so difficult to calibrate. At the very least, they could alter its programming to allow us to "tell the probe" what the tank is at and then let it work from there. Might not be perfect but it would at the very least let us hit the ground running without spending days troubleshooting. What's more, they say you need to re-calibrate it every few months. I don't have time for that. Isn't the point not having to spend so much time on maintaining your tank the reason we buy these things?
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03/10/2018, 11:01 AM | #11 | |
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Quote:
I've tried dozens of times using solution over the years and it never works. I just keep wasting money on solution. It will read correctly in the solution, but as soon as I put it in my tank it goes wonky.
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Current Tank Info: LeeMar Rimless (40x24x22), ATI 8x39 Dimmable w/Reefbrite XHO, 2x Vortech MP40w QD w/ Battery Backup, Apex Gold, Trigger Systems Ruby30S, Reef Octopus POV-DC1 w/Auto Waste Collector |
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03/11/2018, 07:11 PM | #12 |
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I tried the method in the video and it calibrated to the standard solution within about 1/2 a point. When I transferred to the tank water it reads 43.5 ridiculous beats me. My Milwaukee tester says 35. Could the probe fail after less than a year? I will dry it out and try with the tank water
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03/12/2018, 07:57 PM | #13 | |
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One of the reasons I finally bit the bullet and spent the cash was because I was getting excited about the upcoming Apex TRIDENT. Now I am going to be cautious about that one because if they cant get the Salinity probe right, why should I trust them with something ultra important like Alk, Cal, Mag? Get that one wrong combined with dosing pumps and you have a dead tank.
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03/13/2018, 08:23 AM | #14 | |
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Probe Calibrated at last
Quote:
This has worked Thanks to "Diving the World" First adjust tank water to 35ppm with a device you know is accurate like a calibrated refractometer or float device you trust. 1 Let probe dry in air for 24 hours 2. Begin calibration sequence with probe fully dry. Don't get it wet at all. 3 When apex says place in 53,000 solution which is 35ppm (or very close) put it in the tank or sump and gently agitate it to remove air bubbles. they should come out the small holes at the side of the probe. Move it to the holder without taking it out of the water, and secure it in place. 4. Click next in the sequence to finish the calibration. 5. Up-Load to the apex (not sure if this is needed but can't hurt) 6. Fusion should now read 35ppm or very close to it Let me know if this works Last edited by Dr RBG; 03/13/2018 at 08:28 AM. |
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03/13/2018, 10:07 PM | #15 | |
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Quote:
Ill try and report back.
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03/14/2018, 09:34 AM | #16 | |
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its still good practice to check the salinity outside of the tank to compare. salinity should be the same regardless if it is measured in the tank or outside. Last edited by d0ughb0y; 03/14/2018 at 10:04 AM. |
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03/14/2018, 10:33 AM | #17 | |
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Quote:
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Current Tank Info: LeeMar Rimless (40x24x22), ATI 8x39 Dimmable w/Reefbrite XHO, 2x Vortech MP40w QD w/ Battery Backup, Apex Gold, Trigger Systems Ruby30S, Reef Octopus POV-DC1 w/Auto Waste Collector |
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04/02/2018, 06:05 AM | #18 |
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The only way I can keep it working properly is to have the probe completely submerged in my sump upside down so no bubbles form in it. I even have problems with it in a rack holder in spots that don't appear to have any bubbles. So I just leave it submerged. Been this way for a few years now. I recalibrate it maybe every year.
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