opinions on step controller for H.T. Oven

Jack, I'd say save the money and go with something like THIS if you want ramp soak/step options. Combine the controller I linked with a K-type TC, add an SSR, and you've got more versatility and a price still $50 cheaper than the unit you linked to.

--nathan
 
I have the setup that silver discribes an it works fine, you need a box to mount the controller into since it is a panel mounty type. You can get them from radio shack for a few bucks.
 
I guess what I am asking is what are the advantages to ramp as opposed to step programming . From what I read , ramp is to control the amount of time to get to the next desired temperature . If there is the availability to bump and set hold times to raise the temperatures to the final desired temp.s , why a ramp and soak controller . The step controller will hold and soak at the settings programed into it .

Am I missing something here ?????
 
Step control is just an on and off function. When it says go to 1000F from 500F, it will turn on and stay on until it gets there. The coils burn at full heat until the controller detects 1000F and shuts the power off to the coils. That 15 amp unit ( they are overrated) will only run a small oven.

A ramp controller is programed to heat up at a preset rate. It can be set to run full open until the target is reached ( like a step control) or to slowly heat up at a more leisurely rate, easing the wear on the coils and stress on the blades.

You could compare this to a 16 year old boy and a 30+ year old man. The boy gets a girl in bed and slams away at full speed and is done ( and worn out) in a flash. The older fellow takes his time and enjoys the ride ( as well as does his partner).
 
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