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Thread: friends please help i need some command

  1. #1
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    friends please help i need some command

    hello freinds
    i have apex 2016
    can some one give me cammand and i copy paste
    i need command for my calcium reactor When the ph reaches 6.5 the Apex will turn off The selonied valve and that co 2 gas will not go into the reactor
    and every ph more then 6.5 The selonied valve will not close and gas will enter the reactor when ph is more then 6.5
    please help
    thank you for advanced

  2. #2
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    What kind of solenoid do you have. Depending on the type, the amount of hysteresis needs to change. We also need to know roughly what your tank pH is for failsafes.

    You might be an engineer if...You have no life and can prove it mathematically.

  3. #3
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    i have this company valve: Up Aqua CO2 Regulator with 2 Gauges and Adjustable Valve

    this link of valve:https://www.amazon.com/dp/B00AJKPFLU...&pd_rd_w=fMaVE
    my ph in my tank in a day 8.0 and in a night 8.2

  4. #4
    Frequent Contributor zombie's Avatar
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    That one you need about a .1 pH hysteresis or you will prematurely burn out the solenoid.

    Try this as a starting point and see how you like it.

    Fallback OFF
    If pH > 6.59 Then ON
    If pH < 6.51 Then OFF
    If pH > 7.8 Then OFF


    If the reactor is OFF for a very long time, either set to manual ON and watch it until it goes below 7.8 or temporarily remove the failsafe line to start it up and then add it back later.

    You might be an engineer if...You have no life and can prove it mathematically.

  5. #5
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    thank you

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