Lennard Kong
TVWBB Member
I got finished my temp controller setup today.
I am using a PID controller I bought off ebay for $55, it included a thermocouple and relay which is used to control the fan.
The thermocouple is also a bolt type which I can install to replace a grate bolt.
Got the fan from an electronics surplus place.
I got a guy to weld up a little box to fit the fan with a plate which the metal flex hose is tied onto.
So far it looks like it is doing the job,
there are some electrical parameters which can be adjusted to help speed ramp up and also avoid overshooting but I will deal with that another time.
I have another which I installed in my espresso machine to control the temp.
Excuse the quality of the pics, the lighting is a bit off.
I am using a PID controller I bought off ebay for $55, it included a thermocouple and relay which is used to control the fan.
The thermocouple is also a bolt type which I can install to replace a grate bolt.
Got the fan from an electronics surplus place.
I got a guy to weld up a little box to fit the fan with a plate which the metal flex hose is tied onto.
So far it looks like it is doing the job,
there are some electrical parameters which can be adjusted to help speed ramp up and also avoid overshooting but I will deal with that another time.
I have another which I installed in my espresso machine to control the temp.
Excuse the quality of the pics, the lighting is a bit off.
![pid2.jpg](http://img407.imageshack.us/img407/2535/pid2.jpg)
![pid1.jpg](http://img9.imageshack.us/img9/6/pid1.jpg)