Using outlet 3 and 4 on the FFM

[Bassie]

Hi all,

I’am trying to switch my Osmose unit with the FFM on outlet 3 and 4. The program i have is this:
Set OFF
If OsmLo OPEN Then ON
If OsmHi CLOSED Then OFF
Fallback OFF
When the water Lo the Osmose unit powers on. What I’ll want is that the unit shut off if it reach OsmHi. The problem is that when the water is reached OsmLo (outled 3) the optical sensor is again in the water it shuts off Instead by the OsmHi.

Can anyone help me out to develp the code for this?

TIA

Henk

 

[Biglew11]

What exactly are you trying to accomplish? Are you using an ro/di unit to fill an ato resivior? It sounds like you want to fill res when it reaches the low sensor and then shut off when it reaches the high sensor.

Then code should look like this

Default off
Set on
If OsmLo OPEN Then ON
If OsmHi CLOSED Then OFF

 

[SuncrestReef]

There's a very simple mistake. You need to remove the Set OFF command, because that's what's turning off the output once the water reaches the OsmLo sensor a few seconds after it starts pumping. If you remove the Set OFF, then it will be up to the OsmHi sensor to turn off the output.

Fallback OFF
If OsmLo OPEN Then ON
If OsmHi CLOSED Then OFF


Remember, the Apex evaluates the list of commands once per second, and the last command in the list that's True will set the output state. Once OsmLo is no longer OPEN, that line is no longer True, and until the higher sensors detect water, that only leaves Set OFF as the only True statement in the program.

See my series of Apex tutorials for more tips:

Articles by SuncrestReef

www.reef2reef.com

 

[Bassie]

Thx both that helpt a lot. It works Thx