What is the fun in that...

From: Forrest Christian (List Account) 
Sent: Wednesday, August 30, 2017 2:25 PM
To: af 
Subject: Re: [AFMUG] Cost effective battery charging and monitoring device

But what if working is putting rackinjectors in boxes so I can actually get 
back to engineering solutions for this type of stuff?

On Wed, Aug 30, 2017 at 11:51 AM, Chuck McCown <ch...@wbmfg.com> wrote:

  Forrest, quit working and come out and play with us....

  From: Chuck McCown 
  Sent: Wednesday, August 30, 2017 11:49 AM
  To: af@afmug.com 
  Subject: Re: [AFMUG] Cost effective battery charging and monitoring device

  But you can use a voltage divider to convert the 0-5 volt to 0-.1 volt.  
  Two resistors.  

  From: George Skorup 
  Sent: Wednesday, August 30, 2017 11:48 AM
  To: af@afmug.com 
  Subject: Re: [AFMUG] Cost effective battery charging and monitoring device

  No, the SiteMonitor shunt input is ±100mV nominal.


  On 8/30/2017 12:42 PM, Jesse DuPont wrote:

    Would these work on a SiteMonitor? They output 1-5V DC based on current 
flowing through.

    https://flexscada.com/product/hall-effect-current-sensor-ac-75a-dc-100a/


    Jesse DuPont

    Network Architect
    email: jesse.dup...@celeritycorp.net
    Celerity Networks LLC

    Celerity Broadband LLC
    Like us! facebook.com/celeritynetworksllc

    Like us! facebook.com/celeritybroadband


    On 8/30/17 11:29 AM, George Skorup wrote:

      Yeah, about that. I wouldn't use those on 12VDC systems. Too much 
current. I've burned up a couple of the 10A shunts on Traco BCMUs that were 
running around 200W load on battery. 200/13 = 15 amps. Ungood. One site at 
about 225W, first time it went to battery, the shunt went kaput after 10-15 
minutes and the site went down.

      I'm hoping Forrest comes up with some Hall effect stuff or even plain 20+ 
amp shunts that can be used on the SiteMonitor's existing 100mv input. Hall 
effect is nice because you don't have to be "in" the circuit. But I'll take 
what I can get.


      On 8/30/2017 10:26 AM, Adam Moffett wrote:

        Yeah, up to 10 amp.


        ------ Original Message ------
        From: "Chuck McCown" <ch...@wbmfg.com>
        To: af@afmug.com
        Sent: 8/30/2017 11:18:36 AM
        Subject: Re: [AFMUG] Cost effective battery charging and monitoring 
device

          I think Forrest has them on his site with the site monitors.  

          From: Sam Lambie 
          Sent: Wednesday, August 30, 2017 9:15 AM
          To: af@afmug.com 
          Subject: Re: [AFMUG] Cost effective battery charging and monitoring 
device

          Parallel. Site Monitor! Now where can I get a shunt?

          On Wed, Aug 30, 2017 at 9:09 AM, Chuck McCown <ch...@wbmfg.com> wrote:

            4 batts in series or parallel?  
            Shunt + sitemonitor would be a better way to go and you don’t have 
to write code.  

            From: Sam Lambie 
            Sent: Wednesday, August 30, 2017 9:06 AM
            To: af@afmug.com 
            Subject: [AFMUG] Cost effective battery charging and monitoring 
device

            Hey all, 
            I am getting away from using APC at a couple of our sites and right 
now I have installed a Tripp-Lite APS750 connected to 4 Deep cycle marine 
batteries for a total of 404 aH system. I'd like to be able to monitor the 
discharge rate of the batteries when power is out remotely. What have you guys 
been doing to that effect?

            I'm thinking a Pi and a shunt and some quick scripting classes on 
Python to put it all together...


            -- 

            -- 
            Sam Lambie
            Taosnet Wireless Tech.
            575-758-7598 Office
            www.Taosnet.com




          -- 

          -- 
          Sam Lambie
          Taosnet Wireless Tech.
          575-758-7598 Office
          www.Taosnet.com










-- 

      Forrest Christian CEO, PacketFlux Technologies, Inc.

      Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602
      forre...@imach.com | http://www.packetflux.com

         


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