I've never had the occasion to play with one but from parts diagram to me it looks like the brew unit is the forerunner to the S1 minus the PID. Send me a PM with your email address and I'll forward you a PDF with parts diagram for the Professionale and others

A TC costs a few dollars, and every off the shelf PID controller connects to it. A pressure transducer cannot be connected directly to inexpensive PID controllers. Instead, you'd need to hook it up to a 4 to 20mA transmitter adding a few hundred dollars ...

The next time that I have the espresso machine apart for descaling & checking gaskets, I'd like to add active cooling for the group head. I'm already getting pretty good shots from this machine, so the improvement may be modest. Or possibly even non-existent. But at least it will make a fun weekend ...

Hello dear home-baristi, It's a fact: pressure stats have a limited lifetime due to the mechanical nature of their microswitch. One solution is to change the whole system with a TC and a PID, but then the problem is: where do I put this TC ? I was wondering if it would be possible to create a

A couple of comments: 1. Cracking the steam valve is also a very good idea from the temperature control aspect. A Silvia shot is characterized by an initial spike in temperature to around 208F - 210F (measured in the brew path using an Eric S adapter and thermocouple). This initial spike, IMO, serve...

Interesting technique. I will give this a try. But wouldn't it be more logical to enable the steam switch at the end of the pull?

... a couple ounces through the group before the extraction. Technically the boiler idles above the boiling point of water, as you can see from the PID readout in this video: [gvideo]http://video.google.com/videoplay?docid=-3865724457823593662[/gvideo] But the water cools on its way from the boiler ...

... controls are located right above each group and not in the chassis, LCD display to show system status, infusion, error reporting, and it boasts a PID and temperature resolution of 0.25C. The computer

I don't know whether anyone should PID their Junior. I have PID'd my Juniors and in general I get very predictable and reliable shot temperatures, but this has resulted from a lot of work on my part (with gazillions of graphs a small portion ...

Ken, you got me thinking... should I use a PID on my machine? I think once I get a good idea for temperatures on the group head, I should be alright. I do flush the head before hitting my first shot of the day, but now more recently I've had a terrible time with dosing the correct amount