[RE-wrenches] paralleling amp hour meters on one shunt?

toddcory at finestplanet.com toddcory at finestplanet.com
Fri Oct 1 10:03:58 PDT 2010


Thanks everyone for the feedback on my question!

Todd

On Friday, October 1, 2010 9:32am, "Larry Crutcher" <larry at starlightsolar.com> said:

> Todd,
> 
> The shunt is only providing a mV DC signal. In our showroom we have a
> working display wall of charge controllers and battery monitors (Blue
> Sky, Trimetric, Morningstar, analog meters) with a single shunt to a
> single battery. Works well for us. More than likely there is isolation
> before the AD converter so I would not expect any problems with any
> monitor.
> 
> Prescaler may be a different story although I suspect it will work. It
> is just converting a high voltage reference to a low one that the
> battery monitor can accept. If there was an issue I would try a small
> DC-DC device at the prescaler outputs going to each monitor.
> 
> Larry Crutcher
> Starlight Solar Power Systems
> 
> On Oct 1, 2010, at 2:22 AM, Todd Cory wrote:
> 
> > Has anyone ever paralleled two amp hour meters on one shunt? How
> > about paralleling two e-meters on a single shunt and a single
> > prescaler?
> >
> > Todd
> 
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