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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thank you, Shivanand.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> I have found the 10 Kpa range sensors. The MPX12DP, case 344. Is that what you use? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Is there a better choice?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Pete Stanaitis<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>----------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> gasification-bounces@lists.bioenergylists.org [mailto:gasification-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>SHIVANAND Ramachandran<br><b>Sent:</b> Thursday, April 26, 2012 3:33 AM<br><b>To:</b> gasification@lists.bioenergylists.org<br><b>Subject:</b> Re: [Gasification] Low Pressure sensors<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p>Hi Pete,<o:p></o:p></p><p>We use arduino microcontrollers for our gasifiers.<o:p></o:p></p><p>You get low cost pressure transducers from Freescale semiconductors. They synch pretty well with the arduino hardware ( matching supply voltage and output range). They cost about $10 each and are very reliable and reasonably accurate if you take care of the electronics. You can easily get them on any online electronics store like digikey, mouser, etc.<o:p></o:p></p><p>I believe Allpowerlabs also use similar transducers (atleast look the same)<o:p></o:p></p><p><br>Regards<o:p></o:p></p><p> <o:p></o:p></p><p><br>Shivanand Ramachandran<o:p></o:p></p><p><span style='color:black'>Infinite Energy Private Limited<br>First Floor, Baba House<br>149-A, Kilokri<br>New Delhi - 110014<br>Phone 011-65191937, 65273819<br>Fax : 011 - 26348472</span><o:p></o:p></p><p> <o:p></o:p></p><p><br>On 26-04-2012, Pete & Sheri wrote:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal> <o:p></o:p></p></div><blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Hello Stephen.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> The link you supplied to Dwyer was for a Switch, not a sensor. I didn’t make myself clear.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>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.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Sorry for my poor quality communication,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Pete Stanaitis</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>---------------</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><strong><span style='font-size:10.0pt'>From:</span></strong><span style='font-size:10.0pt'> <a href="mailto:gasification-bounces@lists.bioenergylists.org">gasification-bounces@lists.bioenergylists.org</a> [<a href="mailto:gasification-bounces@lists.bioenergylists.org">mailto:gasification-bounces@lists.bioenergylists.org</a>] <strong>On Behalf Of </strong><a href="mailto:sabbadess@aol.com">sabbadess@aol.com</a><br><strong>Sent:</strong> Wednesday, April 25, 2012 2:18 PM<br><strong>To:</strong> <a href="mailto:gasification@lists.bioenergylists.org">gasification@lists.bioenergylists.org</a><br><strong>Subject:</strong> Re: [Gasification] Process controllers for gasifier/engine control and datalogging, Are there any Arduino users out there?</span><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>Pete,</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>Try this:</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'><a href="http://www.sustainablesupply.com/Dwyer-Instruments-ADPS-06-2-N-Pressure-Switch-Dif-p/w228350.htm?gclid=COu_36jb0K8CFcfb4AodKQxUHA&CAWELAID=1307461896&cagpspn=pla"><span style='color:windowtext'>http://www.sustainablesupply.com/Dwyer-Instruments-ADPS-06-2-N-Pressure-Switch-Dif-p/w228350.htm?gclid=COu_36jb0K8CFcfb4AodKQxUHA&CAWELAID=1307461896&cagpspn=pla</span></a></span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>At least it will give you a digital threshold. I have had good luck with Dwyer stuff.</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>Stephen Abbadessa</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span style='font-size:10.0pt;color:black'>-----Original Message-----<br>From: Pete & Sheri <<a href="mailto:spaco@baldwin-telecom.net"><span style='color:windowtext'>spaco@baldwin-telecom.net</span></a>><br>To: Gasification <<a href="mailto:Gasification@bioenergylists.org"><span style='color:windowtext'>Gasification@bioenergylists.org</span></a>><br>Sent: Wed, Apr 25, 2012 2:46 pm<br>Subject: [Gasification] Process controllers for gasifier/engine control and datalogging, Are there any Arduino users out there?</span><o:p></o:p></p><div id="AOLMsgPart_2_d669e330-3c63-4f31-b324-f9a35a6012d2"><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>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.</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> The reason for this post:</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> Is anyone else out there using the Arduino as a process controller?</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>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.</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>If you don’t know what I am talking about, go to:</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'><a href="http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit">http://wiki.gekgasifier.com/w/page/6123727/Gasifier-Control-Unit</a></span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>(If I was a little farther along, I’d just buy one)</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>and then go to:</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'><a href="http://www.arduino.cc/">http://www.arduino.cc/</a></span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>A whole ‘nother world!!!</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>Pete Stanaitis</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;color:black'>---------------- </span><o:p></o:p></p></div></div></div><div id="AOLMsgPart_3_d669e330-3c63-4f31-b324-f9a35a6012d2"><pre style='background:white'><tt><span style='color:black'>_______________________________________________</span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'>Gasification mailing list</span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'> </span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'>to Send a Message to the list, use the email address</span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'><a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a></span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'> </span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'>to UNSUBSCRIBE or Change your List Settings use the web page</span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org</a></span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'> </span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'>for more Gasifiers, News and Information see our web site:</span></tt><o:p></o:p></pre><pre style='background:white'><tt><span style='color:black'><a href="http://gasifiers.bioenergylists.org/">http://gasifiers.bioenergylists.org/</a></span></tt><o:p></o:p></pre></div></div></div></blockquote></div></body></html>