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Thread: Temperature Reading 0.0ºc , *** or 40ºC on P4

  1. #1
    Join Date
    06.05.2017
    Posts
    1

    Default Temperature Reading 0.0ºc , *** or 40ºC on P4

    Hi. I need help. I have several days in which I constantly receive these 2 alarms.

    Temperatura 1 : 40.0C
    Valor pH 1 : 6.64pH
    Redox 1 : 553mV
    Conduct.(F) 1 : 174uS
    TempAire 1 : 19.4C
    Humedad 1 : 71.1%
    Voltaje 1 : 10.00V
    Voltaje 2 : 10.00V

    Alarma: Temp 1 Temperatura Cont

    Temperatura 1 : ***
    Valor pH 1 : 6.63pH
    Redox 1 : 553mV
    Conduct.(F) 1 : 227uS
    TempAire 1 : 19.4C
    Humedad 1 : 70.1%
    Voltaje 1 : 10.00V
    Voltaje 2 : 10.00V

    Alarma: Temp 1 Temperatura Cont

    I can not find where the problem is. it may be the P4 broken or the probe broken or it has been de-calibrated.

  2. #2
    Join Date
    04.11.2015
    Posts
    1,062

    Default

    The probe can react to electromagnetic interferences and errors out with a 40.0C reading.
    You can try and move all electronical devices as far as possible away from the sensor/ sensor cable,
    perhaps it is a disturbing lamp/ballast or there occurs randomly a short-circuit.
    Maybe cable broken or something wrong in the plug.
    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.

  3. #3
    Join Date
    03.03.2019
    Posts
    8

    Default

    try increasing the signal filter and routing sensor cables away from power cables. That worked for me.

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