Re: [RE-wrenches] Trimetric with Outback

2020-11-23 Thread Jay 
Hi Bill

Because OB has all their shunts in parallel, no one shunt carries all of the 
current. 
Which assumes you are using 2 or 3 shunts for the monitoring. 

Therefore to use a trimetric you have to add a 4th shunt that carries full 
current. 

Jay




> On Nov 22, 2020, at 10:05 PM, frenergy  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 874049
> www.frenergy.net
> 
> 
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Re: [RE-wrenches] Trimetric with Outback

2020-11-23 Thread John Blittersdorf 
Bill,
I would just move the two solar negatives to the shunt B and attach the
trimetric across shunt b.  Shunt a and c are the two solar controllers and
that info is already sent to the Mate 3 from the controllers via the HUB.
I only use the FlexnetDC when I am trying to record other non outback
devices such as an Iota charger or wind input and install another TriMetric
to parse out that info for the customer in big red numbers.  The customer
will see net on the TriMetric and you can see the solar detail on the Mate
3.


John Blittersdorf

NABCEP Certified Solar PV Installerâ„¢

CV Wind Service (and solar)

200 West Road

N Chittenden, VT 05763

802-770-8625

www.offgridvermont.com


On Mon, Nov 23, 2020 at 12:05 AM frenergy  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
>
>
>
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> This email has been checked for viruses by Avast antivirus software.
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Re: [RE-wrenches] Trimetric with Outback

2020-11-23 Thread Dan Fink 
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 anbo...@gmail.com
970-672-4342




On Sun, Nov 22, 2020 at 10:05 PM frenergy  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] 
>
> This email has been checked for viruses by Avast antivirus software.
> www.avast.com 
>
> <#m_-5144937475846300048_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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