[RE-wrenches] Radian - Mate 3 incorrect high voltage reading

[Maverick Brown]

Maybe the Calibrate setting got changed somehow. 

OpticsRE: Device Map, Inverter, Calibrate. 

From the Mate: Lock, 141, Settings, Inverter, Calibrate. 

Make sure the settings are Zero offset or at least appropriate. 

Thank you,

Maverick

Maverick Brown
Off-Grid Solar Commander since 2006
Maverick Solar Enterprises, Inc.
 • Solar Commander Remote Power
 • SunFlow Systems Cathodic Protection 
maverick at mavericksolar.com
512-460-9825



> On Apr 5, 2025, at 1:22 PM, Drake Chamberlin via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
> 
> 
> A Radian 4048 disconnected from the grid with a high grid voltage error showing on the Mate 3. The Mate 3 was displaying a voltage of 279 - 280 V. The Mate 3 was replaced with another Mate 3, and the high voltage reading remained.
> 
> When the voltage was checked with two separate multi meters, the readings came out to 249 - 250 V. I believe that the 249 - 250 volt reading is correct.
>  
> The incorrect, high voltage reading seems to be coming for the inverter, not the Mate 3, since two Mates were used.
>  
> Has anyone experienced this? 
>  
> What could be the cause and solution to the problem?
>  
> Thank you,
>  
> Drake
>  
> Drake Chamberlin
> Athens Electric LLC
> OH Electrical Contractor License 44810
> NABCEP Certified Solar PV Installation Professional
> 740-856-9648
> 
> 
> 
> 
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