I've been thinking about different ways to set the profile and the flexibility that I'd like with the Sonofresco
The first photo is what I measured at the exhaust temperature that the sonofresco uses for it's profile (I put my thermocouple in the same location as the one they have factory installed. Notice the sort of preheat ramp and soak they use....
The second photo is the same profile measuring bean temperature... note the over shoot where they were trying to preheat and soak. I'm hoping the PID will help here.
The third photo is a 5 stage profile that I programmed into the milowidget (not connected to the roaster, but the temperature profile that could be programmed. I have developed it so that you can select time and temperature for each of the 5 stages. You can decide what time 1st crack will happen, when to end at what temperature and 3 other stages to do what you want... preheat, ramp and soak, etc.... I plan to experiment with different profiles on a known bean just to see the difference.
The next step is wiring in the milowidget to the sonofresco..... although I may try it first on my old Alpenrost.... unless someone wants to send me a Dietrich IR-3 or another sono
Actually it would be fun with a SC/TO... I may be hunting for one of those soon.