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

[Jay via RE-wrenches]

That’s an interesting idea.  I wonder if the relay is the problem.  You could swap the ac input and see if it’s still reading high.  Jay On Apr 6, 2025, at 7:25 AM, Mac Lewis via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:  Also look for loose connections and corrosion.  If it tries to push current and the voltage rapidly rises, it can indicate resistance somewhere.   Good luck! On Sun, Apr 6, 2025 at 7:20 AM Maverick Brown via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: 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  maver...@mavericksolar.com 512-460-9825 On Apr 5, 2025, at 1:22 PM, Drake Chamberlin via RE-wrenches <re-wrenches@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 --   _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org -- Mac Lewis "Yo solo sé que no sé nada." -Sócrates _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org

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