I’m using 12v 10w halogen bulbs for heating (incubator) started with 1 then 2 then 3 to gain the heat to get the temp up to 37c, i believe i can run 36w on this kit,the more bulbs the hotter the plug gets, the bulbs are switching on and off ok i’ve also switched resistors r5 and r6 (suggested other post) for the temp to get to 37c
i’ve got it up to 37c with 2 bulbs by reducing the area being heated plugs still getting hot why?
if anyone reading this has used this kit and been succesful or unsuccesful hatching eggs can u leave a reply with some information on how you got on OR some helpfull tips i’m starting to wonder if this will work
[quote=“eein”]I’m using 12v 10w halogen bulbs for heating (incubator) started with 1 then 2 then 3 to gain the heat to get the temp up to 37c, i believe i can run 36w on this kit,the more bulbs the hotter the plug gets, the bulbs are switching on and off ok i’ve also switched resistors r5 and r6 (suggested other post) for the temp to get to 37c
i’ve got it up to 37c with 2 bulbs by reducing the area being heated plugs still getting hot why?
if anyone reading this has used this kit and been succesful or unsuccesful hatching eggs can u leave a reply with some information on how you got on OR some helpfull tips i’m starting to wonder if this will work[/quote]
The MK138 can be used to control a heat source for an incubator, but there are some limitations.
What plugs are getting hot? Do you mean the sockets for the halogen lamps? What power source are you using for the halogen bulbs and what is its maximum output current?
when i wrote plugs i forgot the apostrophe
its just one
the plug getting hot is the power plug its 12v 1000ma
[quote=“eein”]when i wrote plugs i forgot the apostrophe
its just one
the plug getting hot is the power plug its 12v 1000ma[/quote]
Each 10 watt lamp draws 833 ma; if your power supply is capable of 1000 ma, then it should be used for only one lamp. Powering two 10 watt lamps requires 1666 ma, which exceeds the capability of your power supply by 666 ma (about 66%). Three bulbs requires 2.5 times the current your supply is rated for. The reason the plug is getting hot is that you are greatly exceeding the capability of your power supply; continuing to do so will cause the power supply to fail. I am surprised it hasn’t already. To run three 10 watt lamps, you need a 12 power source capable of an absolute minimum of 2.5 amps (2500 ma); 3 amps would be better.
[quote=“eein”]when i wrote plugs i forgot the apostrophe
its just one
the plug getting hot is the power plug its 12v 1000ma[/quote]
If you haven’t got a 12v 3A power supply use your existing power supply to charge a small 7Ah 12 v or a small motorcycle battery and use the battery to supply your bulbs and relay switch!! as the bulbs in the incubator will be switching on and off, as they reach temperature the battery should last if your box is well insulated, the power supply will charge the battery when the bulbs are switched off
The relay is OK for switching up to 10 amps