Bill -- I have "cooperatively attached" 2 different shunt monitoring devices to the same main (DC net -) shunt with no issues, for similar reasons (kitchen where client wanted a simple display is too far from shunts and Mate). The phrase is from the Midnite Whizbang Jr. manual, they supply a couple aluminum spacers for the other company's shunt sense wires so they don't short the WBJ board (the WBJ electronics mount on the shunt).
As long as the ring terminals for the Trimetric sense wires can still lay flat while stacked on the FNDC sense ring terminals, you should be fine. I don't see why you couldn't use conductive spacers if the ring terminal barrels interfere with each other and won't lay flat. In my client's case, a second Mate for the kitchen was over twice the cost of a Trimetric without shunt, AND he can read the Trimetric from across the room because of the good ol' LEDs, not so with a Mate 3s. Dan Fink Owner, Buckville Energy Consulting LLC NABCEP Certified PV System Inspector NABCEP PV Associate NABCEP Registered Continuing Education Providers d <dan.f...@greendustrialtraining.com>anbo...@gmail.com 970-672-4342 On Sun, Nov 22, 2020 at 10:05 PM frenergy <frene...@psln.com> wrote: > Wrenchers, > > 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. > > 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 *NET *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. > > Bill > > Feather River Solar Electric > Bill Battagin, Owner > 4291 Nelson St. > Taylorsville, CA 95983 > 530.284.7849 > CA Lic 874049www.frenergy.net > > > > ------------------------------ > [image: Avast logo] <https://www.avast.com/antivirus> > > This email has been checked for viruses by Avast antivirus software. > www.avast.com <https://www.avast.com/antivirus> > > <#m_-5144937475846300048_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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