Need help with an LCD thermostat..

Discussion in 'Shop Talk' started by Kittikity, Apr 17, 2005.

  1. Kittikity

    Kittikity Small scale homesteader

    Messages:
    728
    Joined:
    Oct 20, 2004
    Location:
    Cary, NC
    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=294&item=5768367161&rd=1&ssPageName=WDVW

    I'm thinking of getting the above thermostat to put in a large plywood egg incubator I plan on building.. Does anyone know if it would be workable for a person with very little electrical experience to set up something like that? The description makes it sound fairly easy but I wanted opinions.. I know I can do something like this as long as it's not really complicated..

    Thanks..

    Jacquie
    http://chickens.kittikity.com
     
  2. John Hill

    John Hill Grand Master

    Messages:
    491
    Joined:
    May 12, 2002
    Location:
    New Zealand
    I think this may be a little complicated to use on the incubator.

    Do you want the thermostat to turn a heater off and on or to just make an alarm?

    The description does not include any mention of a mains capable switch or relay that would be required to handle the heater. It says the pins go high when the threshold is reached but it is unclear if the pin stays high until the temperature falls again. In any case, the signal available at the pin is very low power and certainly could not control the heater directly, I note also that it will run for a long time on a small battery which is another indication that there is nothing robust enough to control the heater.

    If you wanted to explore this further you could look at a 'solid state relay', which can be used to enable a very low energy signal (such as you might get from this thermostat) to control a heavier load including mains circuits.

    My suggestion is though that this thermostat is not suitable for your application
     

  3. Kittikity

    Kittikity Small scale homesteader

    Messages:
    728
    Joined:
    Oct 20, 2004
    Location:
    Cary, NC
    Thank you.. That's sort of what I was wondering.. I was thinking about the solid state thermostats.. I just wanted to try and explore all possibilities.. Thanks again..

    Jacquie
     
  4. mikell

    mikell Well-Known Member

    Messages:
    932
    Joined:
    Nov 7, 2002
    Location:
    South West MI
    I would use a regular incubator thermostat they are made for the range you want to use. Might cost a bit more but better in the long run.


    http://www.elexp.com/tst_s345.htm

    This can help monitor your temps and log them to a computer.

    mikell
     
  5. farminghandyman

    farminghandyman Well-Known Member Supporter

    Messages:
    2,396
    Joined:
    Mar 4, 2005
    Location:
    Colorado
    The unit above is NOT a thermostate it is a electronic tester with a thermo couple for use as a fancy therometer,


    http://www.eggcartons.com/item197.htm

    here is a actual electronic thermastat for incubators,

    about $22,

    http://www.mcmurrayhatchery.com/category/incubators_parts.html
    http://www.mcmurrayhatchery.com/product/replacement_parts_for_the_tx_6.html

    MCmurray Hatchery has replacment thermostats, call and explane what you want and see if they have something,

    the other replacment parts have wafer type,

    google search
    [ame]http://www.google.com/search?hl=en&q=Solid+State+Thermostat+incubators&btnG=Google+Search[/ame]


    http://www.strombergschickens.com/products/incubation.htm#supplies

    strombergs have the wafer type, (mechincal)

    here are a few more
    http://www.dblrsupply.com/store/lyon/tempcontroller.html
    http://www.dblrsupply.com/store/lyon/thermostat.html
    http://www.cutlersupply.com/cgi-bin...433.24020*Jj6yE&p_id=0761&xm=on&ppinc=display

    general
    http://www.cutlersupply.com/cgi-bin/store/agora.cgi?cart_id&p=inc-parts