On Tue, 23 Jun 2009 08:28:19 -0400, Jim24242
wrote:

John H wrote:
On Tue, 23 Jun 2009 06:44:46 -0400, Jim24242
wrote:

D.Duck wrote:
"Calif Bill" wrote in message
...
"D.Duck" wrote in message
...
"Calif Bill" wrote in message
...
"Yogi of Woodstock" wrote in message
...
On Mon, 22 Jun 2009 07:09:51 -0400, John H
wrote:

Had our little rig out this past weekend, down to Williamsburg, VA,
where the temp climbed into the 90s on Saturday. Last time we were in
that kind of heat the air conditioner kept popping the circuit
breaker.

This time the AC worked well. Don't know if the problem was the
circuit breaker or not, but at least we kept cool this time.

We stayed at the American Heritage RV park, which is a nice place to
stay if you're ever in that neck of the woods.

Tom or Dick, if either of you happen to read this, last year one of
you suggested an instrument for testing the current at camp sites. I
didn't get it then, but want it now. Could you remind me again what it
was, please?
The only way I know how to do it is to use a multi-meter to check for
120 volts (on a 240 system) against neutral and ground.

Ommmmmmmmm....
It is a digital volt meter that plugs into the receptacle. And will
also tell polarity, and most likely if you have a ground.

Polarity?

Yup, polarity. Is the Hot lead on the correct receptacle terminal. Is
the Neutral on the correct terminal. And do you have a ground wire
attached.
That's not just any run of the mill DVM.


The meter I saw at Camping World yesterday was digital and it measured
voltage and frequency and checked polarity. It also had an audible alarm
if voltage or frequency went out of range or if polarity was wrong. It
plugs into a 110 15A jack. Plug into a power post and learn if it is
safe to plug in your camper. Then put the tester in an outlet inside the
camper to continuously monitor the power.

I still have some reading to do, but why only 15A if the trailer is a
30A?
--

John H
It's not an ammeter. It doesn't care if you have 30 A service or 50A
service. If you want to measure amps you need a different tester. The
killowatt can function as an ammeter but only to 15A. It might work with
a high efficiency AC like your camper probably has, but you would need a
second adapter to convert a 15A to a 30A plug and plug your shore cord
into it. If it was to work to test your AC, you would need to turn off
all other AC loads.

Didn't you say that you were having AC problems last year when you
plugged in at your garage?

Yes, but since I replaced the circuit breaker I've not had that
problem either.;
--

John H