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The way I dealt with the SSR issue with my cheap controller was to locate the power to the relay. It happened to be 5 volts and that was enough to run an SSR. I simply soldered a wire to the positive line to the relay and one to another ground point and brought the wires out the back. The...

I am not sure what you mean by KNOWLEDGEABLE. I will suggest a bit but you can decide if you want to consider what I say as sensible. I am not an electrical engineer. If you need professional advice, you probably need to hire somebody. First, read what Omega has to say about fuses here...

You need to know the type of thermocouple, not the temperature range. If they specify 0-600 it is likely to mean that the quality of the wire will be such that the voltage will be appropriate over that temperature range. The controller will have a selection of what type of thermocouple you are...

I have no trouble with the REX C100 but the instructions are sometimes confusing. My unit appears to only be able to use the K type thermocouple. When I look at eBay, I see labels that specify K but the downloaded manual suggests the usual types are OK and that you have to set the type is the...

Check the polarity of the thermocouple. It might be backwards

I pitched my 5 gallon batch with one packet of yeast and it took off vigorously within 8 hours. Foam was just roaring out of the airlock like always. I am skeptical that the use of two packets really matters that much. I know there has been work to show that the amount of yeast matters and...

I thought about this for a month and finally got off my .. chair and brewed an extract version. Really looking forward to this. Given the date, this could be Jedi beer. May the 4th be with you.....

Me too!

mmmmm..... Freee.......

yes, I'm in

When I got my case open, I located the relay and which side was the input side of the relay. I used a VOM to determine that the 12 volt signal was there when the relay was active. On my circuit board there were unused holes that gave me both 12v and ground. I got a red and a black wire and...

Have you checked your thermocouple for an open circuit or a dead short?

really, reply

I am developing my ability to have a yeast bank and sorting out questions that enter my mind. I have my microscope, hemocytometer, rather than a stir plate, a rotating flask apparatus, a refrigerator/freezer kegerator conversion and a good deal of hope. I have about 100 lbs of trehalose from a...

I've been using my REX C100 to run my sous vide cooker for about 6 months now. It does a great job. Maybe it isn't making brew but it makes great food to go with the brew.

I opened the case by pushing in two tabs and it pops open as I remember. The cycle time can be adjusted to quite short if you like. Somewhere on the web is the users manual and you can get all the control setting information you need. There is at least one place with a good manual and several...

The configuration menu on the controller lets you add or subtract from the displayed temperature. What I did was put a thermometer in the sous vide cooker I built and just added the few degrees my system needed. From then on the controller did its job. I am not too sure you should ever see a...

Yes, indeed. I built a box from left over floor joists to fit a stainless steel pan that I already owned, insulated it with fiberglass, put in an old 250 watt lab heating pad, installed my modified controller running my SSR in a metal case I had laying around and now I have a very nice sous...

I set up a sous vide cooking setup today with my REX C100. I am using the relay driver voltage to run an SSR and using that to run a heating element. It works just fine. I allowed autotune to find the PID settings and after the autotune ran, the temperature is holding at 60. Since I can't...

You are right as far as I can tell. To trick the REX into that you would need to adjust the P to some setting and then set the I and D to 0 so the system is proportional only. You can then set the temperature number to something close to the target and the output will be directly proportional...