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  1. #1
    Extreme Koi Member Rank = Grand Champion john1's Avatar
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    Electrical question

    I have an Elitech E 1000 temp controller rated at max 10 amp heating.

    Am I right in thinking I can run a 2 kw heater from it ?

    https://www.ebay.co.uk/itm/Temperatu....c100290.m3507

    Like this one, not too good on electrics.


    John

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  3. #2
    Senior Member Rank = Jussai RS2OOO's Avatar
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    This is one for Frim or Roy.

    All I can say is: 2000w / 240v = 8.3 amps.

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  5. #3
    Moderator Rank = Supreme Champion Feline's Avatar
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    Yes, that would be within its spec according to my Ohms law calculations
    Worth checkling what the hysteresis of that stat is before you order. Ideally you want 0.5C or less to avoid fluctuations.

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  7. #4
    Extreme Koi Member Rank = Grand Champion john1's Avatar
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    Got the controller just need the go ahead.

    Where are you FRIM when I need you.
    John

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  9. #5
    Senior Member Rank = Jussai Ajm's Avatar
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    Doing his qt ??

    Sent from my SM-N950F using Tapatalk
    Johnathan

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  11. #6
    Extreme Koi Member Rank = Grand Champion john1's Avatar
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    Taking him long enough.
    John

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  13. #7
    Quote Originally Posted by RS2OOO View Post
    This is one for Frim or Roy.

    All I can say is: 2000w / 240v = 8.3 amps.
    To work on the safe side use 230 volts these days so 8.3 amps becomes 8.7 amps so still within the limits of the controller

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  15. #8
    Quote Originally Posted by Feline View Post
    Yes, that would be within its spec according to my Ohms law calculations
    Worth checkling what the hysteresis of that stat is before you order. Ideally you want 0.5C or less to avoid fluctuations.
    Nice one Feline

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  17. #9
    Quote Originally Posted by john1 View Post
    Got the controller just need the go ahead.

    Where are you FRIM when I need you.
    Sorry I have only just seen your thread John I got called away for my evening meal last night and then that's it for the rest of the night for me

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  19. #10
    Quote Originally Posted by Ajm View Post
    Doing his qt ??

    Sent from my SM-N950F using Tapatalk
    No I was eating

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  21. #11
    Quote Originally Posted by john1 View Post
    Taking him long enough.
    Oi you I'm not omnipresent you know LOL

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  23. #12
    Quote Originally Posted by Feline View Post
    Worth checkling what the hysteresis of that stat is before you order. Ideally you want 0.5C or less to avoid fluctuations.
    That's far too technical for me at this time in the morning specially as I haven't even had my porridge yet LOL

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  25. #13
    Extreme Koi Member Rank = Grand Champion john1's Avatar
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    Thanks Frim,so up to 2 kw is ok.
    Dont know what Feline means,think its temp one-way.
    John

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  27. #14
    Quote Originally Posted by john1 View Post
    Thanks Frim,so up to 2 kw is ok.
    Dont know what Feline means,think its temp one-way.
    I think you will find that she is referring to the stat and it's accuracy rather than the controller's max wattage or ampage rating John.

    The 0.5C is referring to 0.5 degrees C so if your controller is set to 15 degrees that actual temperature could be somewhere between 14.5 and 15.5 degrees allowing for the 0.5 degrees + or - your stat could be out by.

    Also with a 0.5 degree fluctuation it will mean that your heater won't be switching on and off ever few seconds trying to keep to exactly 15 degrees.

    It's something along those lines I think you will find as heating and electronics is not my strong point so Feline may know a lot more about it than I do as being a vet she would probably have more dealing with that sort of thing? You have to be very clever to be a vet probably more so than a doctor as their patience can explain their problems a vet's can't

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  29. #15
    Senior Member Rank = Sansai Sim's Avatar
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    Quote Originally Posted by Frimley Koi keeper View Post
    No I was eating
    You will never finish it if stop to eat :-)

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  31. #16
    Well it was gone 8pm and seeing as she still doesn't know about the QT I thought I would have to give it a miss for the day or night in this case

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  33. #17
    Moderator Rank = Supreme Champion Feline's Avatar
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    Hysteresis is the amount the temp has to change by before the stat cuts in. So if it has a hysteresis of 0.5C then it will keep the water within 0.5C of the temp. you set. Some of these stats have a 1C hysteresis which is less stable. I've even encountered a. couple with 2C which would really not be ideal for your koi.

    This might. explain it better
    Last edited by Feline; 16-05-2019 at 06:02 PM.

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  35. #18
    That's kind of what I said, eventually, just didn't have the fancy diagram to back it up though

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