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  1. Antworten
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    Hello Vinny, Long time passed, but I resolved...

    Hello Vinny,
    Long time passed, but I resolved this problem by adding an industrial purpose isolation transformer in the power supply to the controller of my Royal Exclusiv RD3 DC skimmer pump motor....
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    OK Vinny. I will be doing a calibration as per...

    OK Vinny.
    I will be doing a calibration as per your instruction.
    I will be back after watching the trend for 5 to 7 days.

    Son
  3. Antworten
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    Hello Vinny, Thanks for your comment. The...

    Hello Vinny,
    Thanks for your comment.
    The readings are gradually going down about 0.1 psu down in a day or two, no fluctuation. I had some electrical noise interference on the 1st pH probe in the...
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    Salinity Probe Drift

    Hi,
    I have been running my Profilux 4 since Jan. this year.
    Everything works OK except the following.
    My slainity probe (conductivity probe) readings drift so fast in thease days.
    It was almost...
  5. Hi, What controller are you running, P4? what...

    Hi,
    What controller are you running, P4?
    what percentage or amount of water do you like to change at a time and weekly?
    The simplest way to make it is ;
    1. Install two level sensors in your...
  6. Hello, Due to no answer so far, I have achieved...

    Hello,
    Due to no answer so far, I have achieved the function by myself thru testing the function (settings options and status of output) of each event and gate.
    The following is the actual...
  7. Skimmer Control (12 hrs pause) by Programmable Logic

    Hello,
    Could anyone please help me to set up a programmable logic function for my skimmer?
    What I’m intending is as follows.
    When I feed coral food and hit feed pause 1 (FP1) at around 23:00, the...
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    2.921

    Hi, Have you resolved this problem? For the...

    Hi,
    Have you resolved this problem?
    For the reference to others, I'd like to write my experience here.
    The symptoms my KHD were very similar with those explained in this thread.

    First of all, I...
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    P4 latest Firmware update - No GHL logo on P4

    Hello,
    The GHL logo led of my P4 does not come on after updating the newest version of firmware.

    Couple of weeks ago, I updated the F/W version V720 dated 21/03/2019 and the GHL logo did not...
  10. I opened my P4 and I tried to detach the...

    I opened my P4 and I tried to detach the extension board and fit agin.
    While I fulled the board out, some of pins of the multi-pin connector connecting to the main board disconnected from the...
  11. [QUOTE=MatthiasF;87016]Hello, ~~~~ Hi Matt,...

    [QUOTE=MatthiasF;87016]Hello, ~~~~

    Hi Matt,
    Thanks for your kind support!!
    I'm doing installation of the extension board again as I did initially during the weekend. And I write again the...
  12. [Question] pH 2 disappeared from Profillux 4

    Hi, everybody.
    I'm a new member of the forum.
    I recently set up profilux 4 ultrimate set and now I'm commissioning and programming the system for my 600L sps reef tank.

    I have an extension board...
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