This customer wants a standalone solution without a computer (direct LAN connection). There is no inverter - that was my first thought when he called... The pentametric sounds like a possible solution - I'll look into that. Thanks for the info!
Jason Szumlanski Fafco Solar On Wed, May 23, 2012 at 3:35 PM, Dan Fink <[email protected]> wrote: > Hi Jason; > > This is a big interest of mine also, due to many extremely remote sites > with PV installations. Though am more int he market for a deployable > voltage monitor where the client can send me data upon their arrival at > camp each spring, so i can see what the systems were doing all winter with > nobody around but bears, wolves and wolverines. > > There are numerous ways to go about this; here would be my considerations: > > ~ Is there an integrated system monitor in place already? As in Outback > FlexnetDC, and the Xantrex and Magnum equivilants? If so, much of your work > has been done for you. should be quite easy. > ~ Is there an external monitor like a trimetric or pentametric? The > trimetric would require a computer on all the time (but that could be a > tiny linux thing with no display, just and SD card etc). The pentametric > can be ordered with an LAN interface so that only the internet and LAN/wifi > need be turned on, not a computer; > ~ You can talk to Jim Jarvis at APRS World. They have tons of > logging/monitoring options they can build for you with integrated > LAN/internet monitoring etc. > > For this year, i am going with some USB pen drive voltage monitors i can > deploy on the last day of human occupation at these camps (november 1) and > retrieve data when people arrive June 1. The problem is zero sunlight for 2 > months of winter (high latitude, in a valley in the Skeena Mountain Range) > However I think my future may be with Arduino. Not very hard to tell the > arduino computer: > > > > -- > Dan Fink, > Executive Director; > Otherpower > Buckville Energy Consulting > Buckville Publications LLC > NABCEP / IREC accredited Continuing Education Providers > 970.672.4342 (voicemail) > > > On Wed, May 23, 2012 at 1:06 PM, Jason Szumlanski <[email protected]>wrote: > >> I have a customer interested in monitoring a 48V battery bank's voltage >> via the Internet. This is a DC only system. He just needs basic real-time >> and historical voltage recording without any bells and whistles. Any cost >> effective ideas? >> >> Jason Szumlanski >> Fafco Solar >> > > > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > >
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