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Thread: Programming ATO Pump

  1. #1
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    Programming ATO Pump

    Hello, I am a new Apex user and would like some help on how to program my ATO pump/power-head. I am planning to manually add Kalkwasser to my ATO reservoir and then periodically add the mixture to my sump on a daily basis. Could someone tell me what the code line should be if I would like for the pump to turn on at 7:00 am everyday AND run for only 40 seconds; turn on again at 7:00 pm and run for 40 seconds? I would like to be able to avoid a ph spike, so is there a way to turn off the outlet if the PH probe reaches a reading of 8.35 and never turn on again until the ph probe reads 8.2?

    Sorry if this sort of scenario has already been posted somewhere. I saw bits & pieces on how I might do this but didn't wont to screw up my tank water.

  2. #2
    Frequent Visitor Todd's Avatar
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    Here is one way to do it:

    Fallback OFF
    OSC 420:00/000:40/299:20 Then ON
    If ph > 8.34 Then OFF

    This sets up a repeating cycle, starting at 7:00 am, that comes ON for 40 seconds, then 12 hrs later (420 + 000:40 + 299:20) it repeats. If ph exceeds 8.34 it will shut/stay OFF. In order to add the other ph condition, you would need to use a virtual outlet. Given you are only dosing for 40 seconds, that probably isnt necessary.

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    Quote Originally Posted by Todd View Post
    Here is one way to do it:

    Fallback OFF
    OSC 420:00/000:40/299:20 Then ON
    If ph > 8.34 Then OFF

    This sets up a repeating cycle, starting at 7:00 am, that comes ON for 40 seconds, then 12 hrs later (420 + 000:40 + 299:20) it repeats. If ph exceeds 8.34 it will shut/stay OFF. In order to add the other ph condition, you would need to use a virtual outlet. Given you are only dosing for 40 seconds, that probably isnt necessary.
    Thanks Todd, really appreciate your helpfulness on this. Since I am trying to learn how to write commands, can you tell me why you used the "299:20" value? I think I understand the 420.00(being the number of minutes after 12 am, i.e. 7:00am). If I desire for the pump to kick on again @ 7:00 PM , wouldn't you use 719.20 (the number of minutes off after kicking on at 7:00am)? Please explain as I am really confused.

  4. #4
    Frequent Visitor Todd's Avatar
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    The OSC command when using Then ON cycles: OFF1, ON, OFF2, OFF1, ON, OFF2, OFF1....

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    420+299.20=719.20

  6. #6
    Frequent Visitor Todd's Avatar
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    You forgot to include the 40 seconds that it is ON.

    OFF until 07:00
    ON until 07:40
    OFF until 07:40 + 299:20 = 12:00 + 7:00 = 19:00
    ON until 19:40
    OFF until 19:40 + 299:20 = 00:00 + 7:00 = 07:00
    and repeat

    It helps to draw a 24 hr circle and map out when you want things to happen.

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    Quote Originally Posted by Todd View Post
    You forgot to include the 40 seconds that it is ON.

    OFF until 07:00
    ON until 07:40
    OFF until 07:40 + 299:20 = 12:00 + 7:00 = 19:00
    ON until 19:40
    OFF until 19:40 + 299:20 = 00:00 + 7:00 = 07:00
    and repeat

    It helps to draw a 24 hr circle and map out when you want things to happen.
    Thanks again Todd for the explanation. This is starting to make since now that you outlined it. Obviously I need to invest some more time into understanding the OSC commands. Not sure I would have figured this out on my own based on the manual.

  8. #8
    Frequent Visitor Todd's Avatar
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    You mention the manual, but have you downloaded the Users Guide? It is a bit out of date, but still has a ton of useful info.

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    Thanks for that suggestion as well!

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