playing with an incubator idea

[hedgerow pete]

I make home brew and as such i have an electronic pid controler for the boiler, so i was thinking i could use it to control the new incubator.

the basic idea is to loose the analogue controller i have with a digital model

so after searching through all the threads i cant seem to find that anyone else has done this.

i have a celotex lined plywood box as the incubator so thats fine, its 350mm by 600mm by 250mm inside, so plenty of room for the 50 eggs i want to put in it.

i want to split the heater into two sections as then i can half in use and the other half not in use or at a different temp if i so want

so controller is this one for a tenner
http://www.ebay.co.uk/itm/Dual-Digital-PID-Celsius-Temperature-Control-Controller-Thermocouple-REX-C100-/180830006347?pt=UK_Sound_Vision_Other&hash=item2a1a4eec4b

thermocouple is this
http://www.ebay.co.uk/itm/Thermocouple-Temperature-Controller-Sensor-Probe-PT100-/160786361153?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item256f9d2b41

and the ssr

http://www.ebay.co.uk/itm/Control-Solid-State-Relay-SSR-40DA-40A-24-380V-AC-Module-Fast-Switching-/170802773696?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item27c4a37ec0
http://www.ebay.co.uk/itm/New-Aluminum-Heat-Sink-Solid-State-Relay-SSR-Small-Type-Heat-Dissipation-/170802776421?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item27c4a38965

so for around £30 plus a box to shove every thing in i seem to have a digital controlled incubator, now all i need is tow metres of heater cable at 40w per metre and were in bussiness

so why has no one else tried this before with eggs?

 

[chrismahon]

Try an ATC210 Pete. It's more accurate than the one you suggest. Yours has too wide a switching range. It needs to be 0.5 degrees not 2.0 degrees. Check out the top thread in this section.