Programming help

[cali9dub]

I'm trying to figure out if there is a way to program my outlet for my Tunze auto top off unit. I am having a problem because the tunze, anytime it gets power runs the pump for 5 seconds no matter what !! If I just have the outlet on all the time it works fine, but recently I started dosing Kalkwasser and want it not to run if the Ph is >8.45. If I program it to turn off if Ph is > 8.45 then when the Ph drops below 8.45 the pump comes on for it's 5 seconds, dosing kalkwasser and raising the Ph above 8.45. Then it dips and it starts again...the whole time adding water to my tank triggering the high water switch on the tunze. Maybe I can't control it like this. Do I need to use a defer statement? Anyone using a Tunze like this? Thanks guys !!

 

[swearint]

So your outlet code is:

[Kalk]
Set ON
If pH > 8.45 Then OFF

And the Tunze does the level control?

You could add 'Defer 30:00 Then ON'. This will delay the outlet from turning back ON for 30 minutes each time it shuts off due to the pH. Adjust the duration as necessary to allow the pH to settle back down such that 5 seconds worth of Kalk does not bump it back over 8.45.

Todd

 

[cali9dub]

Here is what i have now...seems to be working ok...I still need to narrow down the defer a bit.

[Tunze_5_8]

Fallback OFF
Set ON
If pH > 08.45 Then OFF
Defer 060:00 Then ON
If FeedA 008 Then OFF
If Power EB8_3 Off 008 Then OFF
If Power EB8_5 Off 008 Then OFF
If Outlet Sump_5_6 = OFF Then OFF

 

[swearint]

OK. Just so you know, the Defer applies to the outlet as a whole, not the preceeding statement. It is executed last regardless of position. For example, the FeedA statement will keep it off for the duration of the cycle + eight minutes + 60 minutes.

Todd

 

[cali9dub]

So basically the feed and the power statements can all be 000 and the defer can be whatever I find to be appropriate to accommodate feed, power and Ph statements?

 

[cali9dub]

Can the feed and power statements be negative numbers to offset the defer ? For example could they be -052 to make those statements in conjunction with the 060:00 defer come out to 8 minutes longer than the feed and power cycles, or does it not recognize it in that manner??

 

[swearint]

Can the feed and power statements be negative numbers to offset the defer?

I doubt it. If you need the Defer to only apply to the pH check you could use a virtual outlet to isolate it.

[pH_Check]
Set OFF
If pH > 8.45 Then ON
Defer 60:00 Then OFF

[Kalk]
Fallback OFF
Set ON
If Outlet pH_Check = ON Then OFF
If FeedA 008 Then OFF
If Power EB8_3 Off 008 Then OFF
If Power EB8_5 Off 008 Then OFF
If Outlet Sump_5_6 = OFF Then OFF

Todd

 

[cali9dub]

Hmmm. How do you make a virtual outlet? My tunze is physically plugged in to outlet #8 on my EB8_5.

 

[swearint]

That is covered in the New Users Guide stickied at the top of the forum, but the short answer is you create a legacy (DC8/4/LunarSim) outlet.

Todd

 

[cali9dub]

I don't have a DC8. I have 2 EB8's

 

[cali9dub]

Ok I got it. I created a Lunar Sim outlet (1) renamed it TunzeDefer and programmed it as you stated. We'll see how it works !!

 

[swearint]

That's what makes them 'virtual'. The Apex does not care if a DC8 is connected or not. You just need an outlet to hold the code. The User Guide has an entire chapter on Virtual Outlets as well as a ton of other useful info.

Todd

 

[cali9dub]

All that stuff gets my head swimming. Lol. Well. Just looked and my outlet is not on and it should be. Grrrr

 

[cali9dub]

Trying to get the tunze on all the time except when the pH is > 8.45.

 

[cali9dub]

Whoops. Left the original defer statement in by mistake, duh !!