[RE-wrenches] 72 volt charge controller

[Ray]

I'm not sure on that particular device, but SCI equipment usually have 
test points, that you measure with a volt meter: positive to test point, 
negative to the negative battery input.  The readings reflect cell 
voltage, so you need to figure the voltage set points you want, and 
divide by 36 (in your case) to determine the proper set points. Turn the 
little pot, and watch the values change by the thousandth. Just to make 
things interesting, those set points can drift.  Overall, SCI made great 
gear, I have a bunch of it still in service. They kind of got run out by 
Chinese copies of their circuits that sold for significantly less.  
Another option is Midnite Classics can be set to 72 v mode (I believe).

Ray Walters
Remote Solar
303 505-8760

On 9/12/18 3:18 PM, Kristopher Schmid wrote:
> Hi all,
>
> I am servicing a system that has a 72 volt charge controller circuit 
> board made by solar converters in Canada.  I believe they are no 
> longer in the business.  The float and bulk settings are messed up and 
> they are set with two variable resistor pots.  Can anyone tell me how 
> I can set these???
>
> Thanks,
> Kris
>
>
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