<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr">Hi Bill</div><div dir="ltr"><br></div><div dir="ltr">Because OB has all their shunts in parallel, no one shunt carries all of the current. </div><div dir="ltr">Which assumes you are using 2 or 3 shunts for the monitoring. </div><div dir="ltr"><br></div><div dir="ltr">Therefore to use a trimetric you have to add a 4th shunt that carries full current. </div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Nov 22, 2020, at 10:05 PM, frenergy <frenergy@psln.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff
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<p>Wrenchers,</p>
<p> I tried asking OB about this, no response. New
FlexPwer2 installed in customer's basement, I like to keep the
Mate with the system because the basement is my access point for
future programming, troubleshooting, etc (rather than entering the
house which many times is unoccupied)...no internet or cell
service onsite. <br>
</p>
<p> To have some system status info in the house for the
customer I would like to install a Trimetric 2030 upstairs. This
looks a bit tricky with three shunts in the DC enclosure to
monitor various in/outputs for the FNDC to function and display
info properly for the Mate. Where-o-where might the sense wire be
connected to properly measure <b>NET </b>amps flowing hither and
fro to supply the correct info for the Trimetric? The picture
should help, the two cables coming off the bottom (right side) of
shunt "B" are inverter negs.<br>
</p>
<p>Bill</p>
<pre class="moz-signature" cols="72">Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
<a class="moz-txt-link-abbreviated" href="http://www.frenergy.net">www.frenergy.net</a></pre>
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