Hello Stephen.
The link you supplied to Dwyer was for a Switch, not a sensor. I didn’t make myself clear. I am looking for a sensor in the range of minus 20 inches WC to plus 20 inches WC that will give me an electrical output in proportion to the pressure being sensed, so I can graph the quantity and use its magnitude to control the system. Sorry for my poor quality communication, Pete Stanaitis --------------- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, April 25, 2012 2:18 PM To: [email protected] Subject: Re: [Gasification] Process controllers for gasifier/engine control and datalogging, Are there any Arduino users out there? Pete, Try this: <http://www.sustainablesupply.com/Dwyer-Instruments-ADPS-06-2-N-Pressure-Switch-Dif-p/w228350.htm?gclid=COu_36jb0K8CFcfb4AodKQxUHA&CAWELAID=1307461896&cagpspn=pla> http://www.sustainablesupply.com/Dwyer-Instruments-ADPS-06-2-N-Pressure-Switch-Dif-p/w228350.htm?gclid=COu_36jb0K8CFcfb4AodKQxUHA&CAWELAID=1307461896&cagpspn=pla At least it will give you a digital threshold. I have had good luck with Dwyer stuff. Stephen Abbadessa -----Original Message----- From: Pete & Sheri < <mailto:[email protected]> [email protected]> To: Gasification < <mailto:[email protected]> [email protected]> Sent: Wed, Apr 25, 2012 2:46 pm Subject: [Gasification] Process controllers for gasifier/engine control and datalogging, Are there any Arduino users out there? I have been interested in Jim Mason (and company)’s approach to process control and datalogging using an Arduino based microcontroller since he first announced its existence. I have done a little googling about Arduino in general, and now I am sorta fascinated with it. I already have a fair amount of electronic hobby stuff around here, so I bought an Arduino ATMega2560 last week ($60) and am starting to get familiar with it. The reason for this post: Is anyone else out there using the Arduino as a process controller? And, has anyone found inexpensive low pressure sensors? I can’t seem to find any in the +/- 20 inches WC range that are cheaper than about $40 in a 1 to 3 quantity. If you don’t know what I am talking about, go to: <http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit> http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit (If I was a little farther along, I’d just buy one) and then go to: <http://www.arduino.cc/> http://www.arduino.cc/ A whole ‘nother world!!! Pete Stanaitis ---------------- _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address <mailto:[email protected]> [email protected] to UNSUBSCRIBE or Change your List Settings use the web page <http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: <http://gasifiers.bioenergylists.org/> http://gasifiers.bioenergylists.org/
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