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[behill01]

Hello, I know there still isn't a way to 'schedule Modes', but while we wait on that I have hit a snag trying to perform an automated salinity decrease. I am NOT using an automated comparison between a sal probe and making adjustments that way. (I am fearful of giving the automation that much control on a sal probe.) What I AM doing is checking salinity manually and if it is high, I want to 'hit a button' on the app and 'dose' 10L of tank water down the drain over a day, and allow my float-controlled top off to add fresh RODI to lower the salinity gradually throughout a 24 hourish period.

I programmed the dose pump and made it dependent on a "constant", but I can't figure out how to 'trigger' a constant on/off for a time period. So I can currently set a reminder for 24 hours (on my phone) later but I have to manually turn the constant off again.

Any ideas how to automate this?

Thanks in advance.

-S.H.O.F.T.M.A.T.N.T.B.A.A. - (Still holding out for the Maven, and trying not to buy an Apex...)

 

[Danny]

How are you triggering the output on? Are you using a button box? I turn on a light over my workbench in the garage and I have set to stay on 30 minutes and then go off if I don't push the button again to turn it off. Also if you have the drain pump setup as a dosing pump it will pet you do a manual dose on it anytime you want.

 

[behill01]

I created an smart doser output ('Tank Drain') that is a single dose head of a Minnow. Then scheduled it to run from 0:00 to 23:58 and pump 10L split into 20 segments over the time period and made it 'Off if Off' dependent on a constant called 'Drain mode'. This approach will allow it to be more gradual (I am likely to increase to 20L per day once this is working well). Then I 'trigger' it to 'turn on' using a output constant called 'Drain Mode' that is either on/off, that I manually change in the app. (Manual dosing with the pump is an option, but it appears to be limited to 10L and requires a constant flow and if I slow it down to spread it over time the pump will run so long I am worried about burning it up.)

I could add a physical button and do something like you describe with your work light, but would prefer the ability to start it remotely if ever needed. So what I am missing is a way to turn off the 'constant' off at 23:59 each day or something like that, or even better to be able to set a date/time for it to turn off to account for multiple days long if I need to remove even more water...

I tend to see my salinity increase over time (probably from bi-ionic dosing) and perhaps I am dosing that too high, but not seeing chemistry to indicate that is the case, just the salinity creeps up over time. (Trying to maintain 35ppt)

I appreciate any more suggestions you can offer...

 

[Danny]

I created an smart doser output ('Tank Drain') that is a single dose head of a Minnow. Then scheduled it to run from 0:00 to 23:58 and pump 10L split into 20 segments over the time period and made it 'Off if Off' dependent on a constant called 'Drain mode'. This approach will allow it to be more gradual (I am likely to increase to 20L per day once this is working well). Then I 'trigger' it to 'turn on' using a output constant called 'Drain Mode' that is either on/off, that I manually change in the app. (Manual dosing with the pump is an option, but it appears to be limited to 10L and requires a constant flow and if I slow it down to spread it over time the pump will run so long I am worried about burning it up.)

I could add a physical button and do something like you describe with your work light, but would prefer the ability to start it remotely if ever needed. So what I am missing is a way to turn off the 'constant' off at 23:59 each day or something like that, or even better to be able to set a date/time for it to turn off to account for multiple days long if I need to remove even more water...

I tend to see my salinity increase over time (probably from bi-ionic dosing) and perhaps I am dosing that too high, but not seeing chemistry to indicate that is the case, just the salinity creeps up over time. (Trying to maintain 35ppt)

I appreciate any more suggestions you can offer...

I use the Minnow for AWC pumps but I do that 4 times a day and they only run a little over 14 minutes each time. So there is quite a bit of off time for them to cool down. They are also in the garage and it get hot this time of the year out there.

 

[thom_smith]

Create a Constant "Adjust Salinity" and have it dedault to off. As a safety mechanism, create a second Advanced > Combiner "Salinity Reminder" output referencing Adjust Salinity as an Input and Enable Advanced Settings configuring a Maximum On Time of 12 hours (or whatever it takes the schedule to run after you manually check salinity and turn on the Adjust Salinity output) and IMPORTANT set a notification level. Both outputs will be virtual just meaning they have no Output Device defined. The notification gives a reminder in case you forget to turn off Adjust Salinity.

Create a Dosing Regimen schedule to "dose" 37500ml daily. This'll actually drain approximately 10L from your tank and ATO will end up replacing that with fresh water. Make the schedule Depend On Adjust Salinity output with an Off if Off dependency mode.

 

[thom_smith]

BTW, always leave Salinity Reminder in AUTO. When draining, you need to force Adjust Salinity to ON then change it to AUTO or OFF when done.