Programming Dosing pump at night

[peterlin98]

Hi all -
To help with low pH at night, I like to configure a dosing pump to dose lime water at night. Please help me review if the following statement will do what I need.

The idea is between 11 PM and 8 AM - I like to turn on dosing pump 1 minutes every hour.

If Time > 23:00 Then DP1 ON
OSC 1/59 ON/OFF THEN DP1 ON
If Time > 08:00 Then DP1 OFF

Thank you,

Peter

 

[clp]

For a Jr, AC3, or AC3PRO you can use:

If Time > 23:00 Then NIT ON
If Time > 08:00 Then NIT OFF
OSC 1/59 ON/OFF THEN DP1 ON
If Timer NIT = OFF Then DP1 OFF

Curt

 

[peterlin98]

Thank you Curt. I'll give this a try.

 

[johns]

thinking about the same thing.

are you using NIT as a 'placeholder' setting here?

do you have to have an open outlet for the NIT, even if it isn't being used for anything real?

or I guess, do you have to assign NIT to something - like do I have to assign NIT to the ninth outlet (even though I only have a DC8)? Does this make sense?

 

[peterlin98]

johns - yes, you have to assigned NIT to something otherwise you'll get an error. I think of NIT as a variable or as you said placeholder. In my case, I assigned it to C1 - which does not exist since I'm using A1 to A15

 

[johns]

So it's ok to assign to to an outlet that doesn't actually exist?

To be specific, I have a DC8 and using all 8 outlets. I can assign NIT to a ninth outlet that I dont actually have and go from there?

Or does it actually have to 'see' another open spot somewhere?
Sorry for the confusion.

 

[peterlin98]

Yes, assume you are using A1-A8 (with your DC8) - you can assign NIT to A9 that does not exist.

 

[johns]

will try that.

thank you.

 

[swannking]

<a href=showthread.php?s=&postid=6324103#post6324103 target=_blank>Originally posted</a> by clp
For a Jr, AC3, or AC3PRO you can use:

If Time > 23:00 Then NIT ON
If Time > 08:00 Then NIT OFF
OSC 1/59 ON/OFF THEN DP1 ON
If Timer NIT = OFF Then DP1 OFF

Curt

My aquaJr doesn't have that command. Do I need to update my firmware?

 

[ReefWaters]

With the above programming being the same, would'nt the following programs do the same thing, either way, as long as you used only one of them?

If Timer NIT = OFF Then DP1 OFF

or

If Timer NIT = ON Then DP1 ON

 

[clp]

Those are definitely not equivalent. The second timer NIT statement will will have DP1 on through the whole night period.

Curt