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Thread: P4 Alarming

  1. #1
    Join Date
    30.10.2011
    Posts
    39

    Default P4 Alarming

    Hi
    Can you explain this alarm I get occasionally, I hear an audible alarm and email is sent.
    Within a few minutes everything is back to normal.
    This is the content of email;

    Alarm 000: Alarm: Temp 1 Heater


    Temperature 1 : 40.0C
    pH-value 1 : 8.13pH
    Redox 1 : 398mV
    Conduct.(S) 1 : 1.0178


    Whinin a few minutes all is well and figures are;

    Temperature 1 : 25.3C
    pH-value 1 : 8.13pH
    Redox 1 : 440mV
    Conduct.(S) 1 : 1.0243

    Regards
    Tony

  2. #2
    Join Date
    26.05.2014
    Posts
    37

    Default

    You don't have the probe too close to the heater?

  3. #3
    Join Date
    30.10.2011
    Posts
    39

    Default

    No, the probe is 2 sump chambers before heater.

  4. #4
    Join Date
    26.05.2014
    Posts
    37

    Default

    Another suggestion... You don't have any power cables running too close to the probe cable that you think can interfear? Thinking it should be somthing that swiches on and off in this case, since you just get that reading for a short while. Just guesses from me, but hope it can help trouble shooting. Or maybe stray current (from the heater or something else)
    Last edited by swezoo; 05.09.2018 at 08:57.

  5. #5
    Join Date
    30.10.2011
    Posts
    39

    Default

    thanks for reply but i have no power cables near the probes that could cause the problem.

    Tony

  6. #6
    Join Date
    04.11.2015
    Posts
    1,062

    Default

    This error should occur only if the actual temperature repeatedly could not be read and triggers an alarm.
    From our experience this is often caused by electromagnetic disturbances, e.g. pumps.
    Try to isolate the temp-probe cabling from possible disturbers.
    No support or warranty issues over PM! Please send PMs to the moderators only if you have general problems with using the forum! Thanks for helping us to keep the support efficient.
    Kein Support oder Reklamationsabwicklung über PM! Bitte senden Sie an die Moderatoren nur PMs bei allgemeinen Problemen mit der Verwendung des Forums! Danke dass Sie uns dabei helfen, den Support effektiv zu gestalten.

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