Put together my 240v controller based on P-J's design for single PID / single element. Using Auber 2352 PID, contactor, and ebay SSR first now Crydom 2440 SSR.
Got everything together and all the physical switches work but the PID doesn't appear to be cycling the heating element based on the temperature readings. The first SSR I had was a cheapo ebay one which I assumed was fried. So I bought a Crydom 2440.
Got everything hooked up but the PID still isn't cycling the element. When I put my voltmeter on the posts, both post 3 & 4 have 120V on them, even though posts 1 & 2 (control) only have 1-1.5v so shouldn't be switching the SSR on. Is this crydom one fried too or am I missing something?? Only thing I see is that the SSR is specd for 240V 40A, would it matter that I'm only using 120V on it (does it have to be 240v)?
Thanks for any help.
Got everything together and all the physical switches work but the PID doesn't appear to be cycling the heating element based on the temperature readings. The first SSR I had was a cheapo ebay one which I assumed was fried. So I bought a Crydom 2440.
Got everything hooked up but the PID still isn't cycling the element. When I put my voltmeter on the posts, both post 3 & 4 have 120V on them, even though posts 1 & 2 (control) only have 1-1.5v so shouldn't be switching the SSR on. Is this crydom one fried too or am I missing something?? Only thing I see is that the SSR is specd for 240V 40A, would it matter that I'm only using 120V on it (does it have to be 240v)?
Thanks for any help.