Reply
 
Thread Tools Display Modes
Old 06-21-2012, 11:01 AM   #1
Senior Member
 
Join Date: Apr 2009
Location: North Dakota
Posts: 151
12v guru's...help me pick out a voltage meter (digital or analog)?

i want to install a permanent voltage meter in my 5th wheel. im sick of dragging my multi-meter around when camping haha! and the "empty, 1/3, 2/3, full" meter just isnt cutting it....

if i get a digital meter i would imagine i would have to wire it into a button (like the oem meter) so it isnt on all the time and using power to run itself. but i could live with an analog meter as well. if i would go with an analog meter like this NEW 12V 15V DC 12 15 V VOLT ANALOG VOLTS PANEL METER RV VOLTMETER CLASS 2.5 | eBay , do they draw current to "run themselves"? i would like to be able to glance at the meter and see what my voltage is. i know pushing a button isnt that hard, but it would be nice to have it on all the time. this is the only reason i am considering an analog gauge. if the analog gauge uses power to run itself, then i will just get a small digital meter and hook it up to a button....

any advice is appreciated. thanks.
__________________

__________________
2006 Cherokee Wolfpack 295WP - 2 Interstate U2200 6v, 1500w inverter, clear lens LED clearance and tails, Starlight Revolution 300 lumen LEDs EVERYWHERE!

2012 Dodge 2500 - deleted and tuned by H&S performance
Bocephus is offline   Reply With Quote
Old 06-21-2012, 11:38 AM   #2
Senior Member
 
RPAspey's Avatar
 
Join Date: Jul 2008
Location: central PA
Posts: 973
all meters will have a circuit burden. some more than others. an analog volt meter will have a very low burden. in the scheme of things, its almost nothing for either analog or digital. look into a cigarette plug in type meter for autos. it's about $15 bucks at AutoZone or advanced auto. and you can remove it if you wish. I had one, never removed it unless I needed the 12v outlet.
__________________

__________________
2000 Cherokee 29BH with 6V batteries, LED lights & 400 watts of solar power, flipped axles and raised. 2007 Tundra 5.7L DC-LB with lots of mods. C-co, 8/158th AVN Maint.
RPAspey is offline   Reply With Quote
Old 06-21-2012, 02:21 PM   #3
Moderator Emeritus
 
Join Date: Nov 2008
Location: Winston-Salem, NC
Posts: 2,381
In theory, an ammeter is a dead short, 0 resistance. An ohmmeter supplies a voltage and current, and a VOLTMETER is infinite resistance, therefore they draw no current from the circuit they are measuring. Most VOLTMETERS are running about 1 meg ohms per volt, so at 12 volts, the resistance would be 12 meg ohms, and would draw about 1 micro amp, provided it had a battery to operate the display, or run the meter. Now if the the measured voltage also provided the display voltage, as in the cigarette liter version, about a milli amp per segment, so to display 12 would be 7 milli amps, or .007 amps. All of this is theory, real life may be different.

I don't know anything about about electronics, but I did stay at a Holiday Inn Express last night.
__________________
LadyWindrider
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic

2008 Work and Play 18LT
LadyWindrider is offline   Reply With Quote
Old 06-21-2012, 02:49 PM   #4
Another rat in the race
 
jar3316's Avatar
 
Join Date: Jan 2012
Location: Redlands CA
Posts: 368
In short Yes, it will drain the battery ssslllooowwwlllyyy just like the radio LEDs and other items in the trailer; non lit digital will be less than a analog but all this depends on the quality of the meter. Cheap meters tend to use more, but we are talking about small amounts the real key here is, even built in gauges have a duty cycle they are not designed to run 24/7 forever.

The cig lighter type plugged in while camping would be best in my opinion remember more bells and whistles more energy.
__________________
A rainy day camping is better than any sunny day at work
2004 F250 V10 SD Xcab 2011 Wildwood T26BHXL
jar3316 is offline   Reply With Quote
Old 06-21-2012, 02:52 PM   #5
Senior Member
 
RPAspey's Avatar
 
Join Date: Jul 2008
Location: central PA
Posts: 973
yep, like i said, "very little in the scheme of things."
__________________
2000 Cherokee 29BH with 6V batteries, LED lights & 400 watts of solar power, flipped axles and raised. 2007 Tundra 5.7L DC-LB with lots of mods. C-co, 8/158th AVN Maint.
RPAspey is offline   Reply With Quote
Old 06-21-2012, 03:45 PM   #6
Senior Member
 
Join Date: Aug 2010
Posts: 855
For around 8 bucks on ebay you can find a XX.XX digital in your choice of colors. For another three dollars at radio shack you can find a momentary push button to turn it on. For around 15 dollars fron the same vendor you can get a matching ammeter.
__________________
donn is offline   Reply With Quote
Old 06-21-2012, 04:17 PM   #7
Senior Member
 
VinceU's Avatar
 
Join Date: Dec 2011
Posts: 3,502
Click image for larger version

Name:	image-2958160010.jpg
Views:	181
Size:	31.5 KB
ID:	15566

Swe attached photo includes AC, Coach and Chassis. All disconnect with power supply. Can see from front of coach.

sent from i phone (can you tell?)
__________________
VinceU is offline   Reply With Quote
Old 06-21-2012, 05:21 PM   #8
Senior Member
 
Join Date: Feb 2012
Location: Lund
Posts: 156
I declare Vince the winner of the "purdiest electrical monitoring setup"

__________________
SinkorSwim is offline   Reply With Quote
Old 06-21-2012, 05:32 PM   #9
Senior Member
 
VinceU's Avatar
 
Join Date: Dec 2011
Posts: 3,502
Thanks, who else participated?
__________________
VinceU is offline   Reply With Quote
Old 06-24-2012, 03:27 PM   #10
Senior Member
 
Join Date: Apr 2009
Location: North Dakota
Posts: 151
thanks guys. i got a cheep digital meter, along with a small rocker switch off of an electronics web site. i was going to go with a momentary push button switch, but i decided on a small rocker switch so i could leave it on if i wanted to. thanks for the help!
__________________

__________________
2006 Cherokee Wolfpack 295WP - 2 Interstate U2200 6v, 1500w inverter, clear lens LED clearance and tails, Starlight Revolution 300 lumen LEDs EVERYWHERE!

2012 Dodge 2500 - deleted and tuned by H&S performance
Bocephus is offline   Reply With Quote
Reply

Tags
12 volt, voltage

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:53 AM.