https://www.hukseflux.com/products/solar-radiation-sensors/pyranometers/sr05-d1a3-pyranometer
It is Modbus RS-485. You can convert to Modbus TCP with an inexpensive
gateway. Note that the sensors themselves aren't very cheap.
-James Jarvis
APRS World, LLC
+1-507-454-2727
the poop goes. You can have redundant
pumps at each stage as well.
-James Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/
On Thu, Aug 1, 2019 at 10:57 AM Jeff Clearwater <
je...@villagepowerdesign.com> wrote:
> Hey Wrenches,
>
> So the upshot from this soft sta
Try US Solar Mounts:
https://www.ussolarmounts.us/products/adjustable-ground-mount/tracking-system/
-James Jefferson Jarvis
APRS World, LLC
This message sent from my cell phone. My apologies for brevity and spelling
errors.
On Tue, Aug 27, 2019, 06:35 Christopher Warfel <
cwar...@entech-enginee
-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
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
than
the MLPE manufacturer's profit.
-James Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/
On Thu, May 7, 2020 at 8:43 AM Christopher Warfel <
cwar...@entech-engineering.com> wrote:
> I believe Rapid Shutdown was mostly a solution looking for a problem.
> T
hours away who kept repeating that he was a
"highly qualified individual", but was unable to identify or recognize a
charge controller. He kept referring to the charge controllers as
inverters.
Thanks,
-James Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/
___
d they're carrying current.
> >
> > Just thought it was worth mentioning on this list that there's no hard
> fast rule that all white wires are dead. It depends on the ckt.
> >
> > Best,
> > Greg Egan
> > Remote Power Inc.
> >
> >
>
ate manner.
Thanks,
-James Jarvis
APRS World, LLC
Chris Worcester wrote:
Hi fellow wind wrenches,
We are searching for a reasonably priced add on wind data monitoring
system that is fairly accurate to put in our quotes. What do you
recommend? We used to use the NRG Wind Watcher Data Logger Ki
looks very sharp and the printing appears to
be impervious to UV. We use it to mark our outdoor sensors cable
assemblies. Here is an example:
http://www.aprsworld.com/gallery/customCables/IMG_2821
Thanks,
-James Jarvis
APRS World, LLC
On 05/07/2012 10:35 AM, Bill Loesch wrote:
Hi All,
Many
Yes. Look for 4-20mA loop clamp on meters. Fluke 77x series is an example:
http://www.fluke.com/Fluke/usen/Clamp-Meters/Fluke-771-Milliamp-Process-Clamp-Meter.htm?PID=69415
0 to 100mA with 1% accuracy worst case over the whole range.
-James Jarvis
APRS World, LLC
On 05/24/2012 12:49 AM
and you
might get a better drawing or a manufacturer part number.
I bet I know what project this is for. :-)
-James Jarvis
APRS World, LLC
On 02/19/2013 04:44 PM, Nathan Stumpff wrote:
Wrenches,
I am designing a system with a sizable diversion load and am looking
for the smallest water
The Polar Power units have variable output charging. Lots more smarts
than just float charge. Very good integrated automatic generator
starting and stopping. Our customers haven't been very impressed with
the super capacitor for starting.
-James Jarvis
APRS World, LLC
On 03/05/2013 11:
So who has a good reliable off grid RSD? It all looks like failure prone
garbage to me.
Thank you,
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
(Sent from my phone. My apologies for spelling errors and brevity.)
On Fri, Aug 27, 2021, 05:02 Tump wrote:
> I would once again say that;
We have been using VHB zip tie bases for at least 10 years. They are
marginally better than the foam zip tie bases. Some material they fall
right off of and some material they do quite well on. In all cases they do
better than the foam tape bases. But that may not be good enough. We
consider adhesi
Buckling of the wall studs is most likely going to be the failure mode. You
can use WebStructural to look at different designs. You'll find that
accurately defining the constraints on the structural members is the most
troublesome.
https://webstructural.com/
Personally, I don't think that supporti
Why was ACLD discontinued?
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
(Sent from my phone. My apologies for spelling errors and brevity.)
On Sat, Oct 8, 2022, 12:35 PM Bradley Bassett via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> The ACLD was long ago discontinued.
It would be nice if the decision was up to the owner / occupant of the
property. I, for one, do not want any random person to be able to turn off
my house or business with the flick of a switch. I feel strongly that there
is far too much fear mongering in NEC with relation to renewable energy.
-Ja
mergency disconnect for services on those same one- and two-family
> dwellings [230.85].
>
> Brian Mehalic
>
> On Jan 28, 2023, at 5:58 PM, James Jarvis via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>
> It would be nice if the decision was up to
Did they ever explain why they were requiring it on a nominal 48 volt
system? NEC 480.7(B) (from memory, I think that is the right article) says
it is for nominal voltage of 60 volts or higher. IE your 48 volt system is
exempt.
Jay pointed this out on February 3rd.
-James Jefferson Jarvis
APRS W
Bicycle charging her L16 battery bank would be fine waste of effort. In
good shape she might be able to make 200 watts for some part of an hour
before being tired. Even Lance Armstrong in his peak probably wouldn't be
producing multiple kWh per day.
My $0.02 worth,
-James Jefferson Jarvis
APRS Wo
Will meet all the bologna rapid shut down unswitched conductor distances
with current national electric code?
I quit installing building mounted solar arrays a code cycle ago because it
became impossible in my view not to have module level electronics.
-James Jefferson Jarvis
APRS World, LLC
+1-5
On Wed, Oct 11, 2023 at 1:14 PM Dave Angelini Offgrid Solar via RE-wrenches
wrote:
> Even the SQ pump without the controller will soft start and should work with
> any inverter built for offgrid.
>
> The SQ pumps work great off grid. Easily run on 24 volt Magnum inverters
without even flickering
Are you referring to the MagWeb when you speak of the "remote monitor"? If
so, then no, it isn't interfering. It is a completely passive device on the
Magnum network and listens only.
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/
On Tue, Oct 31, 2023 at 11:39
ox on the building:
https://satellitesale.net/products/intersect-icgc-1p-cam-lok-generator-connector-panel-nema-3r-120-240-200-amp
best,
-James Jarvis
APRS World, LLC
___
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Just run it from a 12 volt power supply. Or use it to switch a relay and
that relay's contacts can switch the 12V.
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/
On Mon, Jun 24, 2024 at 9:49 AM Drake Chamberlin via RE-wrenches <
re-wrenches@lists.re-wrenches.or
There should be no issues. My rule of thumb is very hard starting 15
horsepower three phase motor will start and run with a quality 30 kilowatt
three-phase generator. That's across the line starting with massive
current. You can program your VFD such that there is no massive surge and
so a 10 horse
Check out Phase Perfect.
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
(Sent from my phone. My apologies for spelling errors and brevity.)
On Thu, Jul 25, 2024, 11:46 AM Lou Russo via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Aloha All,
>
> I have a project that requir
So is the Midnite AIO made in USA? Or is it just USA branding / firmware /
support on China made hardware?
Thanks
On Thu, Aug 1, 2024 at 8:08 AM jay via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Sol Ark is definitely not made in america.
>
>
> On Aug 1, 2024, at 6:17 AM, Maverick
My company, APRS World, developed the MagWeb remote monitoring that Magnum
has been selling for years and has thousands of active users. Currently
Sensata (Magnum's owner) is continuing to pay us to host it. But should
they quit, we will continue to offer the service under our own name and
address
On Tue, Oct 22, 2024 at 9:07 PM Kirpal Khalsa via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> I love our Milwaukee Force Logic crimper - beautiful, effortless crimps in
> small spaces
>
Which crimper / die package do you have? Milwaukee has a confusingly large
selection of them.
Th
ver a thousand
dollars of conduit and conductor.
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/
On Tue, Nov 5, 2024 at 8:47 AM James Jarvis wrote:
> Hi Group,
>
> We have an install with four Fronius Symo 10.0-3 inverters connected to a
> 208V WYE build
There isn't. It's a cultural thing. All of our Japanese machines have
completely different grounding schemes that they want because that is
standard in Japan. That's my two cents
thank you,
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
(apologies for the brevity and spelling...from my
Hi Group,
I have a customer who has many hundreds of large Absolyte 2V cells in 24
volt battery banks. They would like some way to quantify the individual
cell health. Inspection time available at each site is limited and the
battery SOC will vary. These are off-grid sites and there is no outside
CR Magnetics has current switches.
thank you,
-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
(apologies for the brevity and spelling...from my phone)
On Fri, Oct 25, 2024, 7:19 PM david quattro via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Hi Wrenches,
>Such an hon
The interesting thing to me is that a ton of industrial equipment has
regenerative braking that puts power back "on the grid". Lots of things
with a frequency drive and a motor that stops has been built this way for
30 years. Things that stop like CNC machines and elevators. Pretty much
anything t
What voltage would you like it to read or what voltage are you expecting to
read? If I am understanding your post, you are measuring 120V Line to
Neutral and 120V Line to Ground. Ground has to "sit" somewhere and their
explanation of leakage current through the components is reasonable.
If concern
80% DOD on an AGM battery is pretty aggressive and won't lead to very long
battery life. Is that your normal design intended depth of discharge or
that just where you the LVDs set to cut out?
You mention cold. And you are talking about 250 amp/hour and a genasun
controller. So a pretty small syste
Little computer fans are as close to a commodity as there in in the electro
mechanical world.
Hop on Digikey.com and do a parametric search starting with dimensions and
voltages and you'll have half a dozen in stock options in a few minutes of
searching.
-James Jefferson Jarvis
APRS World, LLC
+
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