Re: [WISPA] [WUG] Monitoring AC Current

2011-02-28 Thread Matt
What about using a Hall Effect current clamp? Thought about that pretty hard. Actually ordered in some big cheap cheap torrids to go around the AC line. Never got time to try it though. Use a bridge regulator on the shunt.  Then meter the output of the bridge. Almost exactly what I am

Re: [WISPA] [WUG] Monitoring AC Current

2011-02-25 Thread Matt
Why do you need to step that up instead of just using the 0-100mv input (labeled shunt) on the packetflux sitemonitor.  Not sure I'm following you. I want to monitor and graph current on a 120V AC line. Not DC current.

Re: [WISPA] [WUG] Monitoring AC Current

2011-02-25 Thread Blair Davis
Use a bridge regulator on the shunt. Then meter the output of the bridge. On 2/25/2011 12:23 PM, Matt wrote: Why do you need to step that up instead of just using the 0-100mv input (labeled "shunt") on the packetflux sitemonitor. Not sure I'm following

Re: [WISPA] [WUG] Monitoring AC Current

2011-02-25 Thread Blair Davis
That was supposed to be bridge rectifier ...On 2/25/2011 1:53 PM, Blair Davis wrote: Use a bridge regulator on the shunt. Then meter the output of the bridge. On 2/25/2011 12:23 PM, Matt wrote: Why do you need to

Re: [WISPA] [WUG] Monitoring AC Current

2011-02-25 Thread Matt
Use a bridge regulator on the shunt.  Then meter the output of the bridge. Almost exactly what I am looking at doing now. Have PacketFlux 10 amp shunt on order. Will feed that into isolation transformer then with diode, capacitor and resisters convert that to a DC voltage. Am hoping with

Re: [WISPA] [WUG] Monitoring AC Current

2011-02-25 Thread Philip Dorr
What about using a Hall Effect current clamp? On Fri, Feb 25, 2011 at 2:38 PM, Matt lm7...@gmail.com wrote: Use a bridge regulator on the shunt.  Then meter the output of the bridge. Almost exactly what I am looking at doing now.  Have PacketFlux 10 amp shunt on order.  Will feed that into

Re: [WISPA] [WUG] Monitoring AC Current

2011-02-24 Thread Randy Cosby
Why do you need to step that up instead of just using the 0-100mv input (labeled shunt) on the packetflux sitemonitor. Not sure I'm following you. On 2/24/2011 3:43 PM, Matt wrote: I need to monitor current on an AC line at a tower site. Like 5 amps at 120 VAC. I would like to graph it