<div dir="ltr">Bill, all: <div><br></div><div>My budget is limited. I went with the Seek Thermal camera ($250) that connects to my Android phone via micro USB, with an extension cable so I don't have to remove the phone from its Otterbox (unlike the FLIR One, which is a propriatary case you have to move an iPhone to). I think Seek has an iPhone version also.<div><br></div></div><div>Since I'm just looking for drastic *differences* in temperature, it works fine and paid for itself on the first job, finding a high-resistance battery terminal connection without dismantling the whole battery bank looking for green crud. I include thermal photos on every system maintenance report I do now.</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8000001907349px">Dan Fink</span><div style="font-size:12.8000001907349px">Adjunct Professor, Ecotech Institute</div><div style="font-size:12.8000001907349px">IREC Certified Instructor™ for: </div><div style="font-size:12.8000001907349px">~ PV Installation Professional</div><div style="font-size:12.8000001907349px">~ Small Wind Installer</div><div style="font-size:12.8000001907349px">Executive Director, Buckville Energy</div><div style="font-size:12.8000001907349px">NABCEP Accredited Continuing Education Providers™<br><a href="tel:970.672.4342" value="+19706724342" style="color:rgb(17,85,204)" target="_blank">970.672.4342</a></div><br> </div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Sun, Nov 22, 2015 at 5:21 AM, Bill Loesch <span dir="ltr"><<a href="mailto:solar1online@charter.net" target="_blank">solar1online@charter.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span class="">
Hi Marco, boB, et al,<br>
<br>
Thermal imaging is so useful for so many diagnosis. How did you
choose the equipment you use without buying more than you use/need?
Satisfied with your current machine or would you recommend something
else?<br>
<br>
TIA,<br>
<pre cols="72">Bill Loesch
Solar 1 - Saint Louis Solar
<a href="tel:314%20631%201094" value="+13146311094" target="_blank">314 631 1094</a></pre>
<div>On 11/21/2015 11:48 PM,
<a href="mailto:boB@midnitesolar.com" target="_blank">boB@midnitesolar.com</a> wrote:<br>
</div>
</span><blockquote type="cite"><div><div class="h5">
<div><br>
I have looked at several modules (not SunPower though) and I see
this much temperature<br>
variation between cells BUT I have not seen anything like your
picture, with only one cell<br>
hotter. What I have seen is hotter and cooler cells more or
less spread out<br>
semi-randomly. Not sure if your example is normal or not for
Sun Power ?<br>
<br>
Here is one example from my library of FLIR pix.<br>
A thermal imaging camera sure sheds light<br>
on many different things !<br>
boB<br>
<br>
<img alt="" src="cid:part1.01060006.06080101@charter.net" height="240" width="320"><br>
<br>
<br>
<br>
On 11/21/2015 9:31 PM, Marco Mangelsdorf wrote:<br>
</div>
<blockquote type="cite">
<div>
<p class="MsoNormal"><span>Hello all,<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>I’m seeing hot spots on
some of the SunPower modules we installed circa
2007-2010. (I’ve been a SunPower dealer since 2005.)<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Sometimes theses cells are
20-30 degrees C hotter than the surrounding cells and it’s
especially striking while using a Flir IR camera. Check
out the two images below.<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span><img src="cid:part2.08040907.02010702@charter.net" alt="cid:image001.png@01D12070.CBCC60D0" height="254" width="339"></span><span><img src="cid:part3.04030902.08060602@charter.net" alt="cid:image002.png@01D12070.CBCC60D0" height="254" width="339"></span><span><u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Do many of you come across
hot spotted mods? Anyone know of any papers out there on
hot spots and the hit on performance and reliability?<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Mahalo,<u></u><u></u></span></p>
<p class="MsoNormal"><span>marco<u></u><u></u></span></p>
</div>
<br>
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