Help with dosing

[kentlighting]

This is my coding ive done for my A - B dosing

Its on Outlet 4 and 8 so it shuts off fine by turning it to manual off.

but in auto is wont turn off why?


Fallback OFF
Set OFF
If Time 01:00 to 01:01 Then ON
If Time 09:00 to 09:01 Then ON
If Time 17:00 to 17:01 Then ON
Defer 000:58 Then ON

 

[aquamanic]

If you look in the outlet log, does it show the outlet turning ON at the correct time but never turning OFF or does the log show the outlet turning OFF but physically, it never turns off?

 

[swearint]

How long are you expecting it to stay on? Based on your code, it should stay on for 1:02 minutes.

Todd

 

[bazineta]

I'll pull a Kobayashi Maru here and suggest that you take a much simpler approach, by breaking the dosing up into much smaller increments. You're showing 3 minutes a day there, but if we were to break it up so that you were dosing hourly, that'd be about 8 seconds per hour.

I'm guessing you have a somewhat small demand here, since that's not a lot of dosing, but it's easy to adjust.

You want to offset the A and B parts by some time to avoid precipitation; thus, do one part on the hour, and one part on the half hour. You end up with this for the A part:

Fallback OFF
OSC 000:00/000:08/059:52 Then ON

and this for the B part:

Fallback OFF
OSC 030:00/000:08/029:52 Then ON

In both cases, I'd add the following for safety:

If pH > 8.35 Then OFF

Hope this helps.

 

[kentlighting]

I want it to dose 3 times a day for two seconds, so what you are saying that right now its turning off at the end of 01:01 as apposed to 01:00:59 so i need to set the defer to be 001:58?

 

[swearint]

I want it to dose 3 times a day for two seconds, so what you are saying that right now its turning off at the end of 01:01 as apposed to 01:00:59 so i need to set the defer to be 001:58?

The Time statement will not become false until a full minute past the endpoint, so 1:02. In other words, the smallest duration is two minutes, then you can deduct with the Defer. So, a Defer of 1:58 should do the trick. You should test it out though, I have seen that it is not dead accurate to the second. You may have to bump it to three seconds.

Todd