looking for advice on shunt location

[justchillin]

enclosed is a pic showing the negative side of my DC system. The diagram is basic, for the sole purpose of locating the shunt.
There are 4 battery banks (four individual 12v 100ah batteries in series for a total of 48v), each going to a bus bar.
Bus bar feeds two EG4 6000xp inverters in parallel.
I'm looking for the location for a shunt. I'm wondering if I put one inline between the bus bar and master inverter, will it monitor both inverters?
I ask because running a master, then a slave, it's my understanding that things are all monitored thru the master. Perhaps I'm wrong.
TIA
and yes, some day I'll get one of those fancy programs to create a diagram vs the ole hand drawn pic

 

[timselectric]

The shunt goes between the battery and everything else.
In your case, between the bus bar and the inverters, will be fine.

 

[Q-Dog]

An appropriate sized copper bar bolted to the shunt is a clean way to do it, if your shunt can fit it. We now have 4 batteries connected on the bottom bar, all DC load negatives on the top.

 

[robbob2112]

and yes, some day I'll get one of those fancy programs to create a diagram vs the ole hand drawn pic

Fancy program for diagrams that is free

draw.io

www.drawio.com

 

[justchillin]

An appropriate sized copper bar bolted to the shunt is a clean way to do it, if your shunt can fit it. We now have 4 batteries connected on the bottom bar, all DC load negatives on the top.

View attachment 269166

so like this then?

 

[Q-Dog]

so like this then?

Your 4 batteries can go directly to the copper bar on the bottom of the shunt ... that lower copper bar becomes the battery bus bar.

 

[Zwy]

enclosed is a pic showing the negative side of my DC system. The diagram is basic, for the sole purpose of locating the shunt.
There are 4 battery banks (four individual 12v 100ah batteries in series for a total of 48v), each going to a bus bar.

Sixteen 12V 100Ah batteries?

Bus bar feeds two EG4 6000xp inverters in parallel.
I'm looking for the location for a shunt. I'm wondering if I put one inline between the bus bar and master inverter, will it monitor both inverters?

No

I ask because running a master, then a slave, it's my understanding that things are all monitored thru the master. Perhaps I'm wrong.
TIA
and yes, some day I'll get one of those fancy programs to create a diagram vs the ole hand drawn pic

Shunt goes between batteries and all inverters.

 

[Rocketman]

so like this then?

You just need one wire (appropriate sized) to go from the shunt (battery side) to your copper bus bar.
You don’t need to put a copper bus bar on the shunt - but you could just move your current battery bus bar and attach it to the shunt - thus eliminating a few connections.

 

[robbob2112]

I do this -- you would be using your batteries instead of the series strings I have -- but I use 2 bus bars on the negative so I can bring the batteries together on one and everything else together on the other.... on the positive side the batteries are fused individually as are all the other connections to that bar.

 

[justchillin]

Your 4 batteries can go directly to the copper bar on the bottom of the shunt ... that lower copper bar becomes the battery bus bar.

gotcha. I should have clarified tho, I had already bought 2 big shiny 600a Blue Sea bus bars. Nice and cheap on Ebay.
Sounds like I have a few options on the actual assembly and I appreciate the help

 

[justchillin]

You just need one wire (appropriate sized) to go from the shunt (battery side) to your copper bus bar.
You don’t need to put a copper bus bar on the shunt - but you could just move your current battery bus bar and attach it to the shunt - thus eliminating a few connections.

I like fewer connections (but have become a pro on the crimping thanks to my new hydraulic Temco crimper). Now I'm thinking about mounting the shunt directly to the battery bus (which I think is what you were suggesting, only in reverse)

 

[justchillin]

Fancy program for diagrams that is free

draw.io

www.drawio.com

well now, Ima gonna have fun with this program. Thanks for sending....just like Christmas!