GHL timer help - Prevent ATO running at specific times

[clawhammer]

Hi All,
Looking for some help programming my GHL. I’m using a Maxi Doser as my ATO. It has one optical sensor that activates the pump when it falls below the optical sensor. I have a second optical sensor that I’ve not been able to connect as I’m waiting for the holder to arrive.
My RODI, Alk, Mag and Calc are all dosed into the return chamber and my KH and ION D both pick up sample water from the return chamber.
I’m trying to prevent RODI being dosed into the return chamber at the same time the KH and ION D are collecting sample water so it doesn’t affect the results.
I don’t want to plug the Maxi Doser into the PowerBar to achieve this and hoping there is another way to prevent the ATO running between certain times.
Appreciate any help with this.
TIA, CH

 

[KStatefan]

Tagging @Lasse

This is using myghl

If you need screen shots using GCC I can also.

You can add a timer to your control circuit. Turn the Always active off and set to the timer you want to use.

Then add a timer for when you want it to be on. In my example it would be off 8:00 to 8:30 AM and PM

I am sure there are other ways to do this also.

 

[KStatefan]

In GCC

 

[clawhammer]

Tagging @Lasse

This is using myghl

If you need screen shots using GCC I can also.

You can add a timer to your control circuit. Turn the Always active off and set to the timer you want to use.

Then add a timer for when you want it to be on. In my example it would be off 8:00 to 8:30 AM and PM

I am sure there are other ways to do this also.

Hi, thanks for this. I’ve set up as you suggested and will check it’s working properly tomorrow. Currently the Maxi is turned off so it doesn’t go rogue and dose RODI when it’s not supposed to.

 

[clawhammer]

I really can't get this to work...
I've taken screenshots of everything that I believe is controlling the ATO. I think some of it is surplus and causing me issues. Please help!
TIA, CH

Dosing pump 13

Dosing pump 13 - Dosing schedule

Timer 3 Schedule

Timer 3 Switch mode

Control circuit 1

Switch channel 7

 

[KStatefan]

@clawhammer
Change to switch channel. You are using a control circuit to control a switch chanell and that will tell the pump when to come on.

Timer 3 schedule look correct if you want the ATO to run 11:30 AM/PM to 12:30 PM/AM. 1 hour twice a day. I would change the description to ATO on since this timer controls when the control circuit will be active,

Control Circuit 1 looks correct assuming you have your sensor setup on #1

Switch channel 7 should be pointing to control circuit 1

 

[KStatefan]

@clawhammer

There is also a video from @Vinny@GHLUSA that shows how to do this.

 

[clawhammer]

Thanks so much @KStatefan. I've managed to get this working. I've changed the dosing pump settings to 'Switch channel' and the Switch channel settings so it points at control circuit 1. I also amended my schedule so the pump rungs between 00:30 to 11:30 and then 12:30 to 23:30. This means it won't run for 1 hour twice a day as my KHD takes a water sample at 00:00 and 12:00.

I wrote this below in case it helps somebody else in the future: -

Control/Level Settings/Circuit 1 - Set up sensor for ATO, select sensor being used (in my case circuit 1), limit on time so you don't flood your tank with RO (I did this by setting to 5 hours instead of 5 minutes!). At this step you're telling the sensor what it's sensing for, ATO, and limiting the amount of time it can pump RO but it's not linking the sensor to any pumps at this stage.

Dosing Pumps/Dosing Pump 13 - Set to Switch Channel and select a free socket number (in my case 7). This links the dosing pump head to a switch channel which will tell the pump when to turn on/off but it's not linked to the sensor at this stage.

Switch Channels/Switch Channel 7 - Set up switch channel you linked to your dosing pump above (in my case 7) as ATO and select Control Circuit (in my case 1) to link the switch channel to the sensor. The Switch Channel is now linked to the sensor so when the sensor tells the switch channel the water level is too low the switch channel tells the pump to turn on and then off again when the correct water level is achieved.

Now all three are linked to each other to make the ATO work but I want to prevent the pump from dosing RODI when either the KH or ION D's are taking water samples so that the RODI doesn't affect the readings. I have set up my timer as follows:

Processes/Timer 3 - Set up the next free timer function (in my case 3) with a schedule of times you don't want the ATO pump to be activated. There is no option to link the timer to anything so you will need to link it to the Circuit you set up for your sensor, in my case Circuit 1. I've turned 'Always active' to off and the set 'Activated through timer' to 3.

 

[KStatefan]

Glad you got it working.