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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Brian, <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>A good Anodizer can keep it the same size . With 30-50 Micron thickness there can be some Microns “growth” <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Not a issue for O-rings and threads.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>My anodize offers a Teflon dip after anodizing to make it more water repellant.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Emile<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Van:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>Namens </b>Brian Cox via Personal_Submersibles<br><b>Verzonden:</b> vrijdag 3 februari 2017 18:05<br><b>Aan:</b> Personal Submersibles General Discussion<br><b>Onderwerp:</b> Re: [PSUBS-MAILIST] scrubber performance<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cliff, Will I have to worry about threads or o ring tolerances after the process? <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Brian <br><br>--- </span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a href="mailto:personal_submersibles@psubs.org"><span lang=EN-US>personal_submersibles@psubs.org</span></a></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'> wrote:<br><br>From: Cliff Redus via Personal_Submersibles <</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a href="mailto:personal_submersibles@psubs.org"><span lang=EN-US>personal_submersibles@psubs.org</span></a></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>><br>To: Personal Submersibles General Discussion <</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a href="mailto:personal_submersibles@psubs.org"><span lang=EN-US>personal_submersibles@psubs.org</span></a></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>><br>Subject: Re: [PSUBS-MAILIST] scrubber performance<br>Date: Fri, 3 Feb 2017 10:45:26 -0600<o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Brian, I am not a corrosion expert but have found that hard anozizing (</span><span style='font-family:"Calibri","sans-serif";color:#44546A'>Mil-A-8625 type III) seems to work fine for my parts. My experience is that PSUB stuff gets banged around a lot so addeded thinckness and hardness that comes from Mil-A-8625 type III seems to work out better. Most of my marine experience has been in fresh water lakes so we really need to get someone with a lot of saltwater experience to chime in. Also most psubbers don't leave their boats in the water all the time and rinse off the boat after use. This also tends to mitigate corrosion.</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#44546A'>Cliff</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p></div></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Fri, Feb 3, 2017 at 9:50 AM, Brian Cox via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cliff, Is the </span><span style='font-family:"Calibri","sans-serif";color:#44546A'>Mil-A-8625 type III class 2 black anodizing sufficient for exposure to sea water? Using 6061 aluminum. </span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#44546A'>Brian</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br><br>--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br><br>From: Cliff Redus via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] scrubber performance<br>Date: Fri, 3 Feb 2017 09:30:18 -0600<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Sounds like you are having fun coming up to speed on PLCs. Get your wife to take the video of your hand waving. We would all appreciate the entailment value! It a lot of fun to bench test components being operated by PLC and see them come to life based on your code. As to compass heading, roll, pitch and yaw sensor, I use the Ocean-server <a href="http://www.ocean-server.com/compass.html">http://www.ocean-server.com/compass.html</a> OS5000-S Solid State tilt compensagted 3 axes digital compass, This is a RS-232 serial device. You have to write some PLC ladder logic code to parse the ASCII string sent to the PLC to extract the data, I packaged mine in a small 1-atm aluminum anadoized pod about the size of a tennis ball that I have mounted outside the steel pressure hull behind the pilot. Even though the DoMore CPU you are using has several serial input ports that could be used for this sensor, I ended up getted a dedicated coprocessor module that plugs into one of the AutomationDirect PLC bases that enables me to write the parsing code in BASIC and enables me to dedicate the coprocessor to this sensor. It took me a while to come up to speed on RS-232 comuncations but I now have this working petty much bullet proof. The coprocedssor then sends the heading, pitch, roll and yaw values to the PLC cpu to be used any way you want them. Currently, I am only using this data on my HMI.<o:p></o:p></span></p><h3><span style='font-family:"Arial","sans-serif"'>Cliff<o:p></o:p></span></h3></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Fri, Feb 3, 2017 at 12:52 AM, David Colombo via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></p><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hi Cliff,<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Its been slow going as I am finishing building my home. Should be finished in 45 days. But I have been making progress as I learn PLC coding and ladder logic in the evenings. Currently I am working thru the flight Joy Stick switch controls combined with a 4 position joystick base to control the (2) forward canard wings, (2) vertical thrusters (2) horizontal thrusters, and (2) vectored rear thrusters to have a flight experience. I spend many hours in the evening when my wife is not looking waving my hands thru the air simulating flight and then coding the switches needed to make the maneuver. I'm sure it would be entertaining to record a video. I am curious, are you using any gyroscopic sensors for pitch and roll? I'm thinking I need to have some build into the coding so as to limit my human abilities as safety overrides. <o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>The next step is to get a bench setup with the joystick and canard wings to run tests on the coding and for flight training purposes. Just need to finish the house first. Mean while I'll be waving my hands in the air for a while.<br><br><br><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Best Regards,<br>David Colombo<br><img border=0 width=200 height=110 id="_x0000_i1025" src="http://static.squarespace.com/static/533310a9e4b0fba62008a464/t/5339c1f2e4b041bac4e25d1b/1396294132055/?format=500w"><br>804 College Ave<br>Santa Rosa, CA. 95404<br>(707) 536-1424<br><a href="http://www.SeaQuestor.com">www.SeaQuestor.com</a><o:p></o:p></span></p></div></div></div></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Thu, Feb 2, 2017 at 8:04 PM, Cliff Redus via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>David, hope that you have made some progress on the design work for SeaQuester. When I first installed life support on the R300, I had sensors distributed all over the boat. What I have move to is packaging all the Life Support related sensors in a single electrical box I call the AMOC module. AMOC is an acronym for Air Management and Oxygen Control. This made it easier to maintain the system and made it easy to bench test. I feed HP O2 from an external tank to this box. It in turn breaks the pressure and emits the O2 to keep the mole percent balanced. The PLC interfaces with the AMOC unit to monitor and control the air in the cabin. If you are interested, send me your email address to <a href="mailto:cliffordredus@sbcglobal.net">cliffordredus@sbcglobal.net</a> and I will send you the DCI for the drawings associated with the AMOC unit and the drawings. The axial flow scrubber I use is the same one Alec used for Snoopy. It has worked great. The PLC ladder logic code around the life support system is pretty straight forward. What I like about the system is that it automatically compensates for different sized humans in the boat but yet retains a manual mode in the event both the main and auxiliary power are lost. The assembly drawing for the AMOC unit details all the sensors as well as all the Swagelok fittings and circular disconnect. This unit should work well with the AutomationDirect DoMore CPU you have.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cliff<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div></div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Thu, Feb 2, 2017 at 7:50 PM, David Colombo via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cliff, Thanks for answering the question I was just going to ask. Did you build any special case to mount for replacement? I need to back and see the line of code you used so I can use it in my DoMore PLC<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Best Regards,<br>David Colombo<br><img border=0 width=200 height=110 id="_x0000_i1026" src="http://static.squarespace.com/static/533310a9e4b0fba62008a464/t/5339c1f2e4b041bac4e25d1b/1396294132055/?format=500w"><br>804 College Ave<br>Santa Rosa, CA. 95404<br>(707) 536-1424<br><a href="http://www.SeaQuestor.com">www.SeaQuestor.com</a><o:p></o:p></span></p></div></div></div></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Thu, Feb 2, 2017 at 2:46 PM, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I have had good performance from this company but with their K30 sensor. $85 and does give 0-5v analog output signal. It span is 0-10,000 ppm (0-2%).<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cliff<br><br>Sent from my iPad<o:p></o:p></span></p></div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>On Feb 2, 2017, at 2:37 PM, River Dolfi via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I did side-by-side tests on several low-cost ambient CO2 sensors when I was doing air quality instrumentation work, and I eventually settled on these units from COZIR. <br><a href="http://www.co2meter.com/products/cozir-0-2-co2-sensor">http://www.co2meter.com/products/cozir-0-2-co2-sensor</a><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>They're only about $70US, have built in self calibration, super reliable, and have very low current draw compared to other sensors. The big rub is that it isn't analog output, but serial.<o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>You would have to interface it with a microcontroller (which is an easy enough job with a $20 Arduino) and have it set up to display to an LCD, trip an alarm at critical levels, possible demand control of the scrubber, other sensors, etc.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I have an identical system built for the health department currently running 70 (70!!!) of these sensors and others on battery power across the city in the elements. They are that good.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I recently found about half of a medical scrubber in a dumpster, so I've been thinking about life support lately.<o:p></o:p></span></p></div></div></blockquote></div></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div></blockquote></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>_______________________________________________ Personal_Submersibles mailing list <a href="http://eonapps/ft/wm/page/compose?send_to=Personal_Submersibles%40psubs.org">Personal_Submersibles@psubs.org</a> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a> <o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>_______________________________________________ Personal_Submersibles mailing list <a href="/eonapps/ft/wm/page/compose?send_to=Personal_Submersibles%40psubs.org">Personal_Submersibles@psubs.org</a> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a> <o:p></o:p></span></p></div></div></body></html>