ATO & Water change settings

C

chiefzod

New member
Hi All,

Just trying to see if i can achieve what i want with the Profilux.

With 2 level sensors (or a 3rd if i need it) i want to be able to take out water and replace it (water change) but I would also like to make Auto top off work depending on conductivity. ie if it's to low add more saltwater and if to high add RO water. Here is how my sockets are setup.

Socket 9 (peri pump water out of tank) Not set
Socket 10 (peri pump salt water in) Not set
Socket 18 (GHL dosing pump RO water in) Set to Water1

Any hints or suggestions?

Ideally for the water change I would like to add 10L of water than take 10L out using level switches ie Fill to sensor 2 (water change max level) and then drain to sensor 1 (Normal sump level and ATO switch) but i could do it the other way round if needed.
 
no problem: use the programmable logic, maybe in this way

Logic 1 = Water1 AND Conductivity 1 upwards

Logic 2 = Water1 AND Conductivity 1 downwards

then assign the functions Logic1 and Logic to the sockets in question

Explanation: Water 1 (or 2 or 3) is affected by the level sensor 1 (or 2 or 3), Condu. downw. (or upw.) is switched by the conductivity controller

You can use the "ATO" function (one sensor) or the "ATO + Auto Water Change" function (2 sensors).

Please get more information in the manual under sections "conductivity" and "level"
 
I have read the manual and i'm still unclear as to how this will work.

I understand the logic one for conductivity. I also understand that i have the following sockets set this way.

Socket 9 (peri pump water out of tank) Water 2
Socket 10 (peri pump salt water in) Logic 1
Socket 18 (GHL dosing pump RO water in) Logic 2

Level Sensor 1 - ATO & water change

But what do i set sensor 2 as?

Also seeing that water 1 is set as a logic command how will that work with the water change. Will it vary the water going in eg. with the 10L change will it do some as RO and some Saltwater?
 
Nickde:

These are the most complex settings, you dont have to use them, the system can be as simple or as complicated as you wish, depending on what you want to achieve, the beauty here is that it gives you that option, something for everyone.

Chiefzod:
Sorry for not replying myself, as I normally do but still getting my head round half of this myself, just comes down to time, which at present is a bit lacking.

Matthias i am sure will answer you this time far better than I.
 
Yeah I understand that BUT and I think it is a BIG BUT..... That this stuff is also stuff that others would want to do but like myself dont understand at all how to do. Its a great controller i love it BUT just because im computer illittarate I lose out :(
 
Not at all, you dont lose out in the slightest, with all software releases come a new manual or updated one, what you dont understand will be found there and what you still dont understand you can ask here for a very quick answer.

And as I said, just becuase the controller CAN do these functions, it does not mean you have to use them until you feel comfortable.

In some respects even as the distributor im in the same boat as you, just like anything new, I have to sit down and learn it. I wish everything could be plug and play but that is just not always possible

This is the beuty of the profiLux, its offers something for everyone! And all these new features and facilities all come to you for free!

Remember we are here to help!
 
lol I re read my post it wasnt meant to be bad just concerned. So basically things that others figure out to do would possible added to updated versions for us idoits ;)
 
Nothing to be concerned over, as I said before it can be as simple as you want it to be, but if you want to use some of the more complex features and dont quite get it, just ask, you will be answered. (Maybe not by me just yet as I am paddling the same boat as you right now!)
 
chiefzod,

If you choose the mode "ATO & water change" sensor 2 works together with sensor 1 and can't be set to any function:
- Sensor 1 is the Max-Sensor
- Sensor 2 is the Min-Sensor (can't be changed when selected "water change")
- Water 1 is active during refill
- Water 2 is active during draining

-> Your settings above are 100% complete and correct!
 
<a href=showthread.php?s=&postid=11893167#post11893167 target=_blank>Originally posted</a> by Matthias Gross
chiefzod,

If you choose the mode "ATO & water change" sensor 2 works together with sensor 1 and can't be set to any function:
- Sensor 1 is the Max-Sensor
- Sensor 2 is the Min-Sensor (can't be changed when selected "water change")
- Water 1 is active during refill
- Water 2 is active during draining

-> Your settings above are 100% complete and correct!
Click to expand...

Hi Matthias,

Thanks for confirming that. Wasn't sure what i had to do with the sensor 2 settings.

What about the Water change question. Seeing Water 1 is actually using programmable logic to set water 1 to 2 sockets (1 for saltwater 1 for RO water, using the ATO but being done by salinity) will the 10 litre water change be a combination of RO water and Saltwater depending on what the conductivity probe reads or will the hysteresis basically end up making it all saltwater as long as the ATO has maintained the conductivity around the right level?

Sorry to ask but i have about 400L of saltwater for the water change but only 40L of RO water for topup so that would be used rather quickly if it decided to use any of that for the water change.
 
"will the 10 litre water change be a combination of RO water and Saltwater depending on what the conductivity probe reads?"
- YES

It's depends on the hysteresis if the refill is only one kind of water or if it will change during refill. I think you have to play with the hysteresis. And it depends on how fast the water is mixed and the probe comes in contact with the "new" water. If the refill is completed before the probe sees the fresh water only RO water or saltwater will be refilled (depending on the last state of the cond. controller). Maybe a small hysteresis is recommended for your case.
 
I forgot one point: If the conductivity value would be OK during refill neither RO nor saltwater would be refilled -> no refill at all

Solution: Let the pump with the lower flowrate directly be controlled by "Water 1", the other pump should be controlled by the logic function. Then one pump would be started for sure, the other as needed (depending on the current conductivity level).
 
<a href=showthread.php?s=&postid=11893476#post11893476 target=_blank>Originally posted</a> by Matthias Gross
I forgot one point: If the conductivity value would be OK during refill neither RO nor saltwater would be refilled -> no refill at all

Solution: Let the pump with the lower flowrate directly be controlled by "Water 1", the other pump should be controlled by the logic function. Then one pump would be started for sure, the other as needed (depending on the current conductivity level).
Click to expand...

Hi Matthias,

Hmm ok.

Wouldn't that be counter productive though. Lets say my Conductivity is to low then wouldn't it keep adding both saltwater and RO water? Yes the Saltwater is faster but it would be wasting RO water.
 
Do you have a better idea?

I think after a water change the tank must be refilled with both.

And during normale operation (only ATO) you need only RO.
 
Last edited:
<a href=showthread.php?s=&postid=11893494#post11893494 target=_blank>Originally posted</a> by Matthias Gross
Do you have a better idea?
Click to expand...

Yes but only by adding another pump and level sensor which would be a waste of money.

<a href=showthread.php?s=&postid=11893494#post11893494 target=_blank>Originally posted</a> by Matthias Gross
I think after a water change both the tank must be refilled with both.
Click to expand...
Not really. If your taking out saltwater at the right level all you need saltwater to replace it. Adding RO water would only decrease your conductivity
<a href=showthread.php?s=&postid=11893494#post11893494 target=_blank>Originally posted</a> by Matthias Gross
And during normale operation (only ATO) you need only RO.
Click to expand...
Yes most people get away with this but it's not always the case. With salt creep and running your skimmer wet you will be loosing saltwater and therefor decreasing your conductivity by just replacing it with RO water.

I think i'll just get another GHL dosing pump and assign it like this.

Socket 9 (peri pump water out of tank) Water 2
Socket 10 (peri pump salt water in) Water 1
Socket 17 (GHL dosing pump Salt water in) Logic 1 (Logic is set to Water 3)
Socket 18 (GHL dosing pump RO water in) Logic 2

Level Sensor 1 - Water change
Level Sensor 2 - Nothing (Part of Water change)
Level Sensor 3 - ATO

Does that look right to you Matthias?
 
I have 4 of the dosing pumps with my controller and not looking to have a ATO at all. Would I still need to use 3 like your stating there chief ? I have a dialyseas and that is my top off
 
<a href=showthread.php?s=&postid=11894968#post11894968 target=_blank>Originally posted</a> by Nickde123
I have 4 of the dosing pumps with my controller and not looking to have a ATO at all. Would I still need to use 3 like your stating there chief ? I have a dialyseas and that is my top off
Click to expand...

Hi Nickde123,

It depends, If you have a pretty constant conductivity then you can always just set it up as a normal water change using 2 pumps. If you did the water change with 3 pumps then you would have the same problem that Matthias mentioned. If your conductivity is right it will drain the water off without adding any new water.

I would just stick to the 2 pumps doing a normal water change in your situation.
 
Yeah I have a dialyseas that makes sure my conductivity is right all the time. Does my ATO also. I was thinking of using 2 of the pumps to do a WC for me. I also have 3 float valves that I bought with the profulix so I guess I would be using them somehow
 
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