[RE-wrenches] Voltage Datalogger

[Jason Szumlanski]

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 <danbob88 at gmail.com> 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 <jason at fafcosolar.com>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
>>
>
>
>
>
>
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