Heck, you could probably build a current monitor by wrapping a wire
around an AC conductor a couple dozen wraps. Feed it into a bridge
rectifier and voila, a DC voltage proportional to the current flow.
What's that? 10 cents worth of wire and a 50 cent bridge. A current
monitor for less than a buck.
bp
On 10/8/2014 7:15 AM, Chuck McCown via Af wrote:
You can get current transformers that can be applied to the wires
without cutting them. They snap over the wires. Add a rectifier, cap
and load resistor and you have a voltage that is proportional to
current. Set some limits in the telemetry and you are monitoring your
lights.
*From:* Tushar Patel via Af <mailto:[email protected]>
*Sent:* Wednesday, October 08, 2014 6:36 AM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] packetflux save me
Forrest,
First search on tower monitor price is close to $940. Do you know the
place where you can buy for lot less?
How about following?
http://www.burk.com/Products/Tlm.aspx
Thanks,
Tushar Patel
512-257-1077
www.westernbroadband.com <http://www.westernbroadband.com/>
*From:*Af [mailto:[email protected]] *On Behalf Of *Forrest
Christian (List Account) via Af
*Sent:* Wednesday, October 08, 2014 2:33 AM
*To:* af
*Subject:* Re: [AFMUG] packetflux save me
I was going through my drafts and noticed for some reason the
following was still a draft, and hadn't been sent:
Are you saying this is a DC tower lighting system now? I haven't run
across one of those yet.
For AC, I was going to recommend that you look into a tower light
monitor with a contact output you could hook into a sitemonitor or
similar. I know people who have used the ones from
www.towermonitor.com <http://www.towermonitor.com> with good results.
I'm also looking at building a purpose-built module for the
sitemonitor system, but this is a ways down the todo list.
-forrest
On Mon, Sep 15, 2014 at 5:58 AM, David Milholen <[email protected]
<mailto:[email protected]>> wrote:
I am going to replace my third elec eye. I am converting the eye to DC
with isolation so I dont lose another one
but I would like to get something simple to monitor the sites lights.
On 9/15/2014 1:18 AM, Forrest Christian (List Account) wrote:
Hey I was going to reply but I've been traveling and haven't had a
chance to access the info I need to reply.
At this point I'll be back in the office mid week and I'll have
some good suggestions for you.
On Sep 11, 2014 9:34 PM, "David Milholen" <[email protected]
<mailto:[email protected]>> wrote:
Forrest,
I was looking over your site trying to find something that would
help me to monitor
our older tower lighting using incandescent bulbs.
I am not sure if the shunts will do the trick because I believe
those are for DC current not AC.
I have some Toroids that may help with the AC current drop across
a circuit for indicating its on
or off.
Ill have to pull my old AC circuit analysis book and transducers
to see what I have to do to interface it
to a site monitor base unit
--
--
