The Magnum PT-100 will do 100 amps at 12 volts. It can be run stand alone / not on the Magnum network. Settings are via DIP switch. LED front panel display that cycles through displaying various parameters. Well built and simple units.
https://www.magnum-dimensions.com/pt-100-mppt-charge-controller -James Jarvis APRS World, LLC +1-507-454-2727 http://www.aprsworld.com/ On Fri, Apr 24, 2020 at 12:21 PM Jerry Shafer <jerrysgarag...@gmail.com> wrote: > Wrenches, Ray > How do you program a FM 100 to 12 volts, l do not see that's programmable > to be set to do that > Jerry > > On Fri, Apr 24, 2020, 10:16 AM Ray <r...@solarray.com> wrote: > >> This is a classic off grid conundrum we've dealt with for decades. >> Generally it take more money than the client wants to spend. 12 v is a >> serious limitation, not just for the PV array, but the inverter and >> battery layout as well. What inverter do they have? How old is it? >> What battery are they running? How old is the battery? What are their >> expansion needs? How far is grid away? >> >> I look at all these things when working with the owner of one of these >> legacy 12 v systems. Generally it costs serious money to rewire to >> higher voltage, but it usually solves multiple problems that they needed >> to solve anyway. >> >> On the other hand, if you want to stick with 12 v, you CAN use the FM >> 100, and just use the MATE 3 to program the controller, then pull it. >> We have numerous FM 100s, and we have only one MATE 3 that lives in the >> shop. It brings the cost to the customer down significantly and >> prevents unnecessary tampering with settings. $600 for the MATE 3 is >> just stupid. You can buy a decent laptop for that. >> >> Ray Walters >> Remote Solar >> 303 505-8760 >> >> On 4/24/20 10:39 AM, Jay wrote: >> > Hi All, >> > >> > Are there any CC out there that can parallel on the input side? >> > >> > Situation is a older 12v system, 300’ wire run using a MX 60. >> > >> > Client wants more PV, but CC is maxed out. Upgrading to say FM-100 is >> way expensive and needs new mate etc. >> > Yes could totally redo the system to 24 or 48v and use iota for 12v >> loads. Buts that’s expensive. >> > >> > Installing new wire would be complicated and expensive. But wire is >> large enough to handle more power. >> > >> > Are there are any cc that can parallel on the input side, which would >> be the easy solution if it exists >> > >> > Thx >> > >> > Jay >> > _______________________________________________ >> > List sponsored by Redwood Alliance >> > >> > 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 >> > >> > List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> > >> > List rules & etiquette: >> > www.re-wrenches.org/etiquette.htm >> > >> > Check out or update participant bios: >> > www.members.re-wrenches.org >> > >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> 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 >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> _______________________________________________ > List sponsored by Redwood Alliance > > 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 > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > >
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