<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1531681651122_6544"><span></span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1531681651122_6545" dir="ltr">Blue Robotics items are not compatible for use in USA waters, Alan...celsius, bars, etc. :) :) Nice housings for their units, I really like those. Had I known about these things back when I was fabricating my own I wouldn't have bothered. Pretty sure I've got close to $50 in my LM34 unit and it doesn't look a bit cool compared to the Blue Robotics items.</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1531681651122_6545" dir="ltr"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1531681651122_6545" dir="ltr">Jon</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1531681651122_6545"><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1531681651122_7734" style="display: block;"> <div style="font-family: times new roman, new york, times, serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1531681651122_7733"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1531681651122_7732"> <div dir="ltr" id="yui_3_16_0_ym19_1_1531681651122_7731"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1531681651122_7869"> <hr size="1" id="yui_3_16_0_ym19_1_1531681651122_7868"> <b><span style="font-weight:bold;">From:</span></b> Alan via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, July 15, 2018 5:56 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Lake quality sensors<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1531681651122_8162"><br><div id="yiv5209324232"><div id="yui_3_16_0_ym19_1_1531681651122_8164"><div id="yui_3_16_0_ym19_1_1531681651122_8163">Great video Jon.</div><div id="yiv5209324232AppleMailSignature">You look like you are doing the same as me, taking the long route &</div><div id="yiv5209324232AppleMailSignature">building everything.</div><div id="yiv5209324232AppleMailSignature">I don't know how critical the potting is in this case but I once potted</div><div id="yiv5209324232AppleMailSignature">wires out of a linear actuator like you did, then filled the actuator up</div><div id="yiv5209324232AppleMailSignature">with WD40. It just ran out between the pvc & resin like magic with no</div><div id="yiv5209324232AppleMailSignature">pressure at all applied.</div><div id="yiv5209324232AppleMailSignature">On my light build I stripped a section of the wire that went through the epoxy,</div><div id="yiv5209324232AppleMailSignature">epoxied it & then went over the outside of the fitting & wiring with a 3M</div><div id="yiv5209324232AppleMailSignature">2 part heat activated pvc glue. I went an inch up the wiring with this as</div><div id="yiv5209324232AppleMailSignature">this is how I noted they did it with vulcanising on underwater connectors.</div><div id="yiv5209324232AppleMailSignature">I experimented with all sorts of glues & then went to an inflatable boat</div><div id="yiv5209324232AppleMailSignature">manufacturer who put me on to the 3M product. Over this I moulded </div><div id="yiv5209324232AppleMailSignature">polyeurathane, but mainly as strain relief & aesthetics. It tested ok to 2000ft.</div><div id="yiv5209324232AppleMailSignature">BTW Blue Robotics are selling temperature sensors for about $50-</div><div id="yiv5209324232AppleMailSignature"><a rel="nofollow" shape="rect" target="_blank" href="https://www.bluerobotics.com/store/electronics/celsius-sensor-r1/">https://www.bluerobotics.com/store/electronics/celsius-sensor-r1/</a></div><div id="yiv5209324232AppleMailSignature">Cheers Alan</div><div id="yiv5209324232AppleMailSignature"> </div><div id="yiv5209324232AppleMailSignature"><br clear="none"><br clear="none">Sent from my iPad</div><div class="yiv5209324232yqt8122930943" id="yiv5209324232yqt31465"><div><br clear="none">On 15/07/2018, at 12:56 AM, Jon Wallace via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><span>I documented encapsulating an LM34 temperature sensor which might interest you. You can get the sensor at digikey, mouser, or any other similar distributor. </span><br clear="none"><span></span><br clear="none"><span><a rel="nofollow" shape="rect" target="_blank" href="https://youtu.be/-1iAJcph0Js">https://youtu.be/-1iAJcph0Js</a></span><br clear="none"><span></span><br clear="none"><span></span><br clear="none"><span>--------------------------------------------</span><br clear="none"><span>On Fri, 7/13/18, Mark via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</span><br clear="none"><span></span><br clear="none"><span> Subject: [PSUBS-MAILIST] Lake quality sensors</span><br clear="none"><span> To: "Psubs" <<a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a>></span><br clear="none"><span> Date: Friday, July 13, 2018, 9:34 PM</span><br clear="none"><span></span><br clear="none"><span> Good afternoon, team psubs:</span><br clear="none"><span></span><br clear="none"><span> This year we are planning to give our</span><br clear="none"><span> sub purpose. We live on a small lake in North Carolina</span><br clear="none"><span> where the lake depth averages between 20 and 30 feet. </span><br clear="none"><span> Our plan is to outfit the sub with sensors (and data</span><br clear="none"><span> acquisition) to measure the lake water quality such as pH,</span><br clear="none"><span> Dissolved Oxygen, Turbidity, Nitrogen, Total Coliform,</span><br clear="none"><span> E-Coli, Temperature, etc.</span><br clear="none"><span></span><br clear="none"><span> Has anyone done this before? Does</span><br clear="none"><span> anyone have information where I could purchase these</span><br clear="none"><span> sensors?</span><br clear="none"><span></span><br clear="none"><span> Regards,</span><br clear="none"><span></span><br clear="none"><span> Mark Widman</span><br clear="none"><span> 910-638-5229</span><br clear="none"><span></span><br clear="none"><span> Sent from iPhone.</span><br clear="none"><span></span><br clear="none"><span> _______________________________________________</span><br clear="none"><span> Personal_Submersibles mailing list</span><br clear="none"><span> <a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span> <a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"><span></span><br clear="none"><span></span><br clear="none"><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"></div></blockquote></div></div></div><div class="yqt8122930943" id="yqt31588">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>