I have managed to acquire, with the knowledge to program a one of the many PLC's of the past. All on Ebay. For now I will only deal with Temperature setpoints with probes. The HMI is to be the similar firmware as upgraded. Some will understand that with Allen Bradley and the upgrade train. The...
http://www.allsealsinc.com/allseals/Orings/or13.htm
As a beginner I have decided to bypass certain links and realise Silicone rubber is Synthetic to lower temperatures. That is good. My First 5 # Co2 bottle in the refrigerator was lost to either Nitrile, or another natural rubber. However the...
