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Aquapure Salt Calibration


carnage

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On a AquaPure 1400 Salt system. I would like to calibrate the Salt sensor. It is consistantly off about .5 PPM. I know there is a way ... I have forgotten how to do it. Please HELP!!

The Jandy units use grams per liter and not ppm (parts per million). .5 gpl is the same as 500 ppm. To be off by this amount is pretty much in spec for a SWG that uses conductivity to approximate the salt level. As far as I know there is no way to calibrate the Jandy units (pretty much true for most of the SWGs out there, btw!). I would not loose any sleep over this. I do wonder how you know it is off by this amount. If you are comparing it to a temperature compensated salinity meter that has been recently calibrated then perhaps you have accurate info. If you are comparing it to a chemical test for chloride then be aware that they only have a precision of 200 ppm and that the salt test strips precision vary with the salt level. It is usually within a few hundered ppm at salt levels of around 3000 ppm (or 3 gpl).

I would not worry to much about this if everything is working properly.

Hope this is helpful.

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  • 2 weeks later...

yes ... you are right on the ppm ... but I have a Oaklon Salt testr that is accurate and it reads the water at 3.2 and the Jandy is now reading 2.6 soon it will stop making salt at readings of 2.4 and below. If I don't recalibrate it I will have to buy a new one for a few $$$ and that won't gaurentee a fix.

I have changed the calibration before ... I can't remember how to do it ... hopefully someone chimes in with my solution!!!

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  • 6 years later...

Here is the calibration procedure from the aquapure troubleshooting guide:

Salinity Calibration

Conditions to check before calibrating

The salinity reading must be compared to a reliable outside source. ( Myron meter, titration test, etc.) Minor variations are to be expected.The flow sensor must be cleaned, and checked for damage.If unit has a Rev. 8 front board it must be tested before proceeding. Salt must NOT have been added within the last 24 hours.If a spare flow sensor is available. Connect it to the unit and place it in a bucket of the pool water to compare readings.Note-The unit must have the power turned off before either the old or new flow sensor can be installed. Each time a flow sensor is unplugged and plugged back in again the computer inside the unit must be reset by turning the power off and then on. Failure to do this will result in erroneous readings.

Press the Salinity button and hold it until it beeps 3 times. The system will beep when you push it and then at 5 seconds and again at 10 seconds. Release the button after the 3rdbeep.

Press and release the Temperature button within 5 seconds to enter the salinity calibration screen.

The system will display the salinity reading, press the up arrow to increase the reading and the down arrow to decrease the reading.

When the proper reading is reached press the Temperature button within 5 seconds to store it in memory

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The variation you are experiencing is probably the sensor and not the unit itself. You can try to re calibrate it, but what i would do and advise you the same is to just raise the salinity level in the pool just enough to keep the unit happy (from shutting off). The thing is, is that if you re calibrate, it will stay that way. IOW, if you later replace the sensor, you will have to calibrate again. That's fine, as long as you remember, or as long as you tell the guy you sell your house to in a couple of years. See what i'm getting at here?? You have to remember how much you had to re calibrate it by also, and reset it to that point if you replace the sensor. Its just easier to add a bit of salt.

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  • 5 years later...

And how do we know what the "proper Salinity setting should be" (to raise it lower it) based on the reading displayed during this time?

Mine reads 2.9 and my salt level in the pool reads 2900.  I'm producing salt (generator at 40%, I'm in FL and outdoor temps have been consistently > 80F) and the FAC chlorine level in the pool is (was) tested at 2.2.

So what Salinity level corresponds to this scenario with water temps = 84F?

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