Re: [AFMUG] PacketFlux shunts

isolation. *From:* ch...@wbmfg.com *Sent:* Friday, June 16, 2017 12:32 PM *To:* af@afmug.com *Subject:* Re: [AFMUG] PacketFlux shunts https://www.sparkfun.com/products/8882 *From:* Bill Prince *Sent:* Friday, June 16, 2017 12:08 PM *To:* af@afmug.com *Subject:* Re: [AFMUG] PacketFlux shunts A Hall

Re: [AFMUG] PacketFlux shunts

o:* af@afmug.com *Subject:* Re: [AFMUG] PacketFlux shunts https://www.sparkfun.com/products/8882 *From:* Bill Prince *Sent:* Friday, June 16, 2017 12:08 PM *To:* af@afmug.com *Subject:* Re: [AFMUG] PacketFlux shunts A Hall effect sensor would be the gold standard for a non-intrusive way to sense c

Re: [AFMUG] PacketFlux shunts

Never mind. This one need to be installed in the circuit. Not sure of the advantage other than isolation. From: ch...@wbmfg.com Sent: Friday, June 16, 2017 12:32 PM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux shunts https://www.sparkfun.com/products/8882 From: Bill Prince Sent

Re: [AFMUG] PacketFlux shunts

https://www.sparkfun.com/products/8882 From: Bill Prince Sent: Friday, June 16, 2017 12:08 PM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux shunts A Hall effect sensor would be the gold standard for a non-intrusive way to sense current. I looked at cobbling together something on my own

Re: [AFMUG] PacketFlux shunts

A Hall effect sensor would be the gold standard for a non-intrusive way to sense current. I looked at cobbling together something on my own, but it was more complicated than I anticipated. bp On 6/16/2017 11:01 AM, George Skorup wrote: All we've ever bought are

Re: [AFMUG] PacketFlux shunts

All we've ever bought are the 10A version. They read accurate enough to see when a 1/2 or 1A DC-UPS is charging as well as 3-7A the other direction when the load is running on battery. Typical 24 and 48VDC systems with <200W load. And then me not paying attention with the Traco BCMU's 12VDC.

Re: [AFMUG] PacketFlux shunts

at 20 amps. Just feed it into the SiteMonitor. Assuming aesthetics are not an issue. -Original Message- From: George Skorup Sent: Friday, June 16, 2017 11:30 AM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux shunts Because Forrest makes them in a nice little DIN rail package and de

Re: [AFMUG] PacketFlux shunts

r foot. that would give you 50 mV full scale. Of course this assumes you have the room for and don't mind the look of a coiled up foot of wire. -Original Message- From: Bill Prince Sent: Thursday, June 15, 2017 4:55 PM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux shunts This may be

Re: [AFMUG] PacketFlux shunts

@afmug.com Subject: Re: [AFMUG] PacketFlux shunts Because Forrest makes them in a nice little DIN rail package and designed to work on his SiteMonitor base and modules with a nominal 100mv. On 6/15/2017 8:07 PM, Chuck McCown wrote: Assuming they were EXACTLY the same resistance. Otherwise

Re: [AFMUG] PacketFlux shunts

give you 50 mV full scale. Of course this assumes you have the room for and don't mind the look of a coiled up foot of wire. -Original Message- From: Bill Prince Sent: Thursday, June 15, 2017 4:55 PM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux shunts This may be a bozo approach

Re: [AFMUG] PacketFlux shunts

.0025 ohms per foot. that would give you 50 mV full scale. Of course this assumes you have the room for and don't mind the look of a coiled up foot of wire. -Original Message- From: Bill Prince Sent: Thursday, June 15, 2017 4:55 PM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux

Re: [AFMUG] PacketFlux shunts

There will likely be a 20A shunt in our future.I'm in the process of redesigning these so that they're less expensive to build since the existing design is being sold at or possibly below cost. I'm trying to end up with a 20A shunt as a result but I don't know for sure if this will happen.

Re: [AFMUG] PacketFlux shunts

: Thursday, June 15, 2017 4:55 PM To: af@afmug.com Subject: Re: [AFMUG] PacketFlux shunts This may be a bozo approach, but if you took two 10 amp shunts and connected them in parallel, you would get a 20 amp shunt out of the deal. bp <part15sbs{at}gmail{dot}com> On 6/15/2017 3:47 PM, George

Re: [AFMUG] PacketFlux shunts

This may be a bozo approach, but if you took two 10 amp shunts and connected them in parallel, you would get a 20 amp shunt out of the deal. bp On 6/15/2017 3:47 PM, George Skorup wrote: Forrest, Would you be willing to make a 20A shunt? Would the traces on your

[AFMUG] PacketFlux shunts

Forrest, Would you be willing to make a 20A shunt? Would the traces on your current design handle it? Reason I'm asking is... I'm stupid. I had a 10A shunt on the batt negative side of a Traco BCMU360. Didn't occur to me that 230 watts @ ~12VDC can get up to 20A. So the shunt went kaput