Hi William,
One other thing. Remember to specify the 50mV shunt. "225.01
BatCurSnsTyp". I believe that means it will drop 50 mV across the shunt
with 500A current throughput. It's this proportion that determines the
value for 225.03 BatCurGain. In your case, that should be 50, but I think
it
Hi William,
Yes the Outback shunt should be fine for this application. See page 72
here for the calibration:
http://files.sma.de/dl/15216/SI4548-6048-US-BE-en-20.pdf
As far as verifying with your clamp meter, I'd say if you can verify within
15% (remember to check polarity) then it is properly ca
Mac:
Thanks for the advice. We will install the shunt today. A few more questions:
1. Will the Outback 50ma shunt be compatible. My research indicates the value
is correct.
2. DC clamps are notoriously inaccurate, particularly at low amperages. Will
this be a problem, or is shorting the lea
Mac
> On Feb 12, 2015, at 4:45 AM, Mac Lewis wrote:
>
> Hi William,
>
> I want to talk directly to your problem at hand. I think installing the
> shunt and properly calibrating it, will fix this system . In a DC coupled
> system with a Sunny Island, it is imperative that you use a shunt,
Hi William,
I want to talk directly to your problem at hand. I think installing the
shunt and properly calibrating it, will fix this system . In a DC coupled
system with a Sunny Island, it is imperative that you use a shunt, unless
you are using the Midnite charge controllers with the communicat
Hi William;
Yes I'm getting too old to let manufacturers off the hook anymore. They
just don't pay me enough (wink, maybe if I ever was compensated for
service calls?)
Unfortunately I have had the exact same experience with SMA's phone tech
support. I was having setup issues that were not co
Friends:
I have an existing service issue with a Sunny Island 4548 system shutting
down unexpectedly. The system is off-grid with generator, two inverters, DC
coupled charging. The batteries are a set of used Full River VRLA L-16s (3
strings of 8). We tested the at-rest battery voltages and
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