<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div><span>I wonder if replacing the single turn pot with a ten turn pot with a recessed access would help the sensitivity?</span></div><div></div><div> </div><div class="signature">Al Secor</div><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1522071305268_69783" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1522071305268_69782"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1522071305268_69781"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> James Frankland 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> Tuesday, March 27, 2018 6:44 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] 02 sensor and coms<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1522071305268_69780"><br><div dir="ltr" id="yui_3_16_0_ym19_1_1522071305268_69779">I wouldn't get that "el cheapo" one. I have it and its meadiocre at<br clear="none">best. Its soo sensitive on the control pot, you are never quite sure<br clear="none">if its reading right as just the slightest bump and it moves. I know<br clear="none">Scot had the same one and experienced the same. I think it would be<br clear="none">ok for what its intended for, mixed gas diving. But for permenant O2<br clear="none">monitoring, its not so good.<br clear="none"><br clear="none">I use a crowcon disposable one.<br clear="none"><a shape="rect" href="https://www.crowcon.com/uk/products/portables/clip-sgd-single-gas.html" target="_blank">https://www.crowcon.com/uk/products/portables/clip-sgd-single-gas.html</a><br clear="none"><br clear="none">Going to check out that one Hank mentioned now though....<br clear="none"><br clear="none">James<br clear="none"><br clear="none">On 24 March 2018 at 22:45, hank pronk via Personal_Submersibles<br clear="none"><<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" id="yui_3_16_0_ym19_1_1522071305268_69784">personal_submersibles@psubs.org</a>> wrote:<br clear="none">> Rick,<br clear="none">> Just Google "confined space O2 meter."<br clear="none">> Hank<br clear="none">><br clear="none">><br clear="none">> On Saturday, March 24, 2018, 2:09:09 PM MDT, Rick Patton via<br clear="none">> Personal_Submersibles <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none">><br clear="none">><br clear="none">> Hank,<br clear="none">> how can I read up on them and get costs?<br clear="none">> Rick<br clear="none">><br clear="none">> On Sat, Mar 24, 2018 at 10:03 AM, hank pronk via Personal_Submersibles<br clear="none">> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none">><br clear="none">> Rick,<br clear="none">> You can also buy a O2 meter that just tells you when the O2 is low or high<br clear="none">> but does not give percentage. They are pretty cheap.<br clear="none">> Hank<br clear="none">><br clear="none">> On Saturday, March 24, 2018, 1:50:06 PM MDT, Rick Patton via<br clear="none">> Personal_Submersibles <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a> org> wrote:<br clear="none">><br clear="none">><br clear="none">> Thanks guys,<br clear="none">> since I didn't hear anything back at all from my post, I figured it didn't<br clear="none">> go out properly. I plan on keeping it as simple as possible regarding lap<br clear="none">> tops and things hooked up to it as that stuff is way out of my league!<br clear="none">> Rick<br clear="none">><br clear="none">> On Sat, Mar 24, 2018 at 9:03 AM, Alan via Personal_Submersibles<br clear="none">> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a> org> wrote:<br clear="none">><br clear="none">> Rick,<br clear="none">> I did receive the original post, but like Jon & Cliff I am going to<br clear="none">> use a computer to receive the signal from my sensors.<br clear="none">> It sounds fancy, but instead of having several sensors for O2,<br clear="none">> CO2, pressure, humidity, temperature, water temperature etc<br clear="none">> with their individual electronics & display units, you can pick the<br clear="none">> sensors up reasonably cheaply & use the one computer& display<br clear="none">> screen for all.<br clear="none">> Alan<br clear="none">><br clear="none">><br clear="none">> Sent from my iPad<br clear="none">><br clear="none">> On 25/03/2018, at 7:43 AM, Alan via Personal_Submersibles<br clear="none">> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a> org> wrote:<br clear="none">><br clear="none">> Rick,<br clear="none">> there is the Famous Elcheapo O2 analysing kit, that you assemble.<br clear="none">> The cost is not a lot more than the included sensor.<br clear="none">> I am not sure of the voltage, but would guess you would use a 9V<br clear="none">> battery.<br clear="none">> <a shape="rect" href="https://www.oxycheq.com/el-" target="_blank">https://www.oxycheq.com/el- </a>cheapo-ii-analyzer-kit.html<br clear="none">> Alan<br clear="none">><br clear="none">> Sent from my iPad<br clear="none">><br clear="none">> On 25/03/2018, at 5:55 AM, Rick Patton via Personal_Submersibles<br clear="none">> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a> org> wrote:<br clear="none">><br clear="none">> Thanks Jon<br clear="none">> Yeah I hope he was mistaken as well though he was in tech support at OTS. If<br clear="none">> that’s the case, I’ll lose coms less than a third of the way down to my<br clear="none">> design depth!<br clear="none">> Hank, didn’t you post once about an affordable O2 monitor that you were<br clear="none">> using?<br clear="none">> Rick<br clear="none">><br clear="none">> On Sat, Mar 24, 2018 at 12:40 AM Jon Wallace via Personal_Submersibles<br clear="none">> <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a> org> wrote:<br clear="none">><br clear="none">> I saw it Rick, just haven't completely decided yet so didn't respond,<br clear="none">> however you did get me thinking about it again and I believe I'm going to<br clear="none">> use an O2 sensor intended for rebreathers that will be interfaced with an<br clear="none">> Arduino microprocessor. They are manufactured by Analytical Industries and<br clear="none">> distributed by Dive Gear Express, most under $100 and have a life of two<br clear="none">> years.<br clear="none">><br clear="none">> I have no experience with OTS yet but sure hope it is better for more than<br clear="none">> 100 feet.<br clear="none">><br clear="none">> Jon<br clear="none">><br clear="none">><br clear="none">> ________________________________<br clear="none">> From: Rick Patton via Personal_Submersibles <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a><br clear="none">> org><br clear="none">> To: psubs chat room <<a shape="rect" ymailto="mailto:personal_submersibles@psubs." href="mailto:personal_submersibles@psubs.">personal_submersibles@psubs.</a> org><br clear="none">> Sent: Saturday, March 24, 2018 12:32 AM<br clear="none">> Subject: [PSUBS-MAILIST] 02 sensor and coms<br clear="none">><br clear="none">> I sent out a post the other day regarding what others were using for a 12<br clear="none">> volt oxygen sensor but didn't get a response so not sure it went threw??<br clear="none">> Maybe I typed in the wrong address? I was on the phone with tech support at<br clear="none">> OTS the other day and asked him what range I could expect under standard<br clear="none">> conditions and he said about 100'. Can anyone out there speak to that?<br clear="none">> Rick<br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<div class="yqt9446817407" id="yqtfd52829"><br clear="none">><br clear="none">><br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<br clear="none">><br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<br clear="none">><br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<br clear="none">><br clear="none">><br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<br clear="none">><br clear="none">><br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<br clear="none">><br clear="none">> ______________________________ _________________<br clear="none">> Personal_Submersibles mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Personal_Submersibles@psubs." href="mailto:Personal_Submersibles@psubs.">Personal_Submersibles@psubs.</a> org<br clear="none">> <a shape="rect" href="http://www.psubs.org/mailman/" target="_blank">http://www.psubs.org/mailman/ </a>listinfo.cgi/personal_ submersibles<br clear="none">><br clear="none">><br clear="none">> _______________________________________________<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">><br clear="none">> _______________________________________________<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">><br clear="none"><br clear="none">_______________________________________________<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></div><br><br></div> </div> </div> </div></div></body></html>