Bill; The Mate 3s has calibration offset screens for both the inverter(s)
and charge controller(s).

Main menu -> Settings -> Inverter -> Calibrate (#13)
Main menu -> Settings -> Charge Controller -> Calibrate (#8)

Dan Fink
Owner, Buckville Energy Consulting LLC
IREC Certified Instructor for PV and Small Wind Installation
NABCEP Certified PV System Inspector
NABCEP PV Associate
d <dan.f...@greendustrialtraining.com>anbo...@gmail.com
970-672-4342




On Tue, Apr 27, 2021 at 8:39 AM frenergy <frene...@psln.com> wrote:

> We're setting up charge points for a new pack of SimpliPhi 3.8
> batteries.  Needed to use the voltage  "offset" function in the FM80's a
> bit to jive with the 2, Fluke 87 meters we got testing the actual
> voltage at the battery bus bars.  However. the Mate3s is reading .6
> volts high and can't find an offset function in the Mate's menus.
> Anybody familiar with the path to get there, if its there?  Assuming the
> Mate uses the voltage readings its showing on the display, this could
> have a significant impact on battery health.  Do I need to calibrate
> both my Flukes?...or buy a new Fluke that's not 22 years old?
>
> 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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