Does a volt meter waste electricity? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
 Not a Member? 
  #1  
Old 08-22-2010
Senior Member
 
Join Date: Jul 2010
Posts: 149
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 5
radioguy is on a distinguished road
Does a volt meter waste electricity?

Hey guys,

Weird (stupid) question: does a voltmeter waste electricity?

Thank you
RG
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 08-22-2010
Senior Member
 
Join Date: Oct 2000
Location: Portland, OR
Posts: 671
Thanks: 1
Thanked 6 Times in 6 Posts
Rep Power: 15
olson34 is on a distinguished road
Question No, Yes, Maybe....

My understanding is that the analog ones do not, but then that volt meter is switched on my boat between off (center) or left or right on a spring return to measure voltage for banks one or two.
I hear that there is a very small drain for the digital meters, but have not confirmed that.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 08-22-2010
Senior Member
 
Join Date: Aug 2006
Location: Arlington, VA
Posts: 1,813
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 10
btrayfors will become famous soon enough btrayfors will become famous soon enough
Both analog and digital voltmeters draw some current, but it's a very small current....on the order of 1ma for analog meters. The "waste" is from the resultant heat and light.

Of the ba-zillion things to worry about on a boat, this isn't one of them. For all practical purposes, voltmeters don't "waste" enough energy to be a consideration.

Bill
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 08-22-2010
Stillraining's Avatar
Handsome devil
 
Join Date: Jan 2008
Location: LaConner,Washington
Posts: 3,477
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 9
Stillraining is a jewel in the rough Stillraining is a jewel in the rough Stillraining is a jewel in the rough
Just food for thought.

Volt meters are cool and necessary...but I find a digital amp meter in addition, to be worth 10 times its minuscule power draw.....one glance will tell you if something got left on when leaving the boat or hitting the bunk....took me 5 min one day to find the .5 draw it was telling me we had.

A dim light in the forward head which appeared to be off when looked at with the bright sun comming through the port....only way I eventually found it was to start switching off circuits till i located the culprit...then It was a hole lot easier to find once narrowed down.
__________________
"Go Simple...Go Large"

Relationships are everything to me..everything else in life are just tools to enhance them.


The purchase price of a boat is just the admittance fee to the dance...you still have to spend money on the girl...so court one with something going for her with pleasing and desirable character traits others desire as well... or you could find yourself in a disillusioned relationship contemplating an expensive divorce.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 08-22-2010
PicassoIII's Avatar
Captain Clueless
 
Join Date: Aug 2010
Location: Chicago
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
PicassoIII is on a distinguished road
Oddly enough Ripple has a 12v lighter built in so we just run a cheap plastic voltmeter that plugs into that. The 'lighter' is switched along with the depth gauge and instrument lighting.
I wouldn't 'hard wire' it to the batteries. Definately put it on a switch.
A current meter isn't a bad idea either but, same deal, it should be on a switch. The only things we have straight off battery are the automatic bilge pump and the radios.
__________________
s/v Ripple 1977 Hunter 27
She's a beater but we're in the game.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 08-23-2010
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,284
Thanks: 0
Thanked 79 Times in 70 Posts
Rep Power: 8
mitiempo will become famous soon enough mitiempo will become famous soon enough
Blue Seas digital voltmeter uses a minimum of .6 watts and a maximum of 1 watt. A small price to pay for the information. Their analog meter uses 1 milliampere.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 08-23-2010
Stillraining's Avatar
Handsome devil
 
Join Date: Jan 2008
Location: LaConner,Washington
Posts: 3,477
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 9
Stillraining is a jewel in the rough Stillraining is a jewel in the rough Stillraining is a jewel in the rough
Quote:
Originally Posted by mitiempo View Post
Blue Seas digital voltmeter uses a minimum of .6 watts and a maximum of 1 watt. A small price to pay for the information. Their analog meter uses 1 milliampere.
So .05 amps for mine then...probably about the same for the link Pro...So Im buring up .10 amp hours, or 2.4 amps per day....thats a lot more then I figured it would be I have to admit....I figured it would be in the milliamps as well.
__________________
"Go Simple...Go Large"

Relationships are everything to me..everything else in life are just tools to enhance them.


The purchase price of a boat is just the admittance fee to the dance...you still have to spend money on the girl...so court one with something going for her with pleasing and desirable character traits others desire as well... or you could find yourself in a disillusioned relationship contemplating an expensive divorce.

Last edited by Stillraining; 08-23-2010 at 01:56 AM.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Waste removal and unlimited water! radioguy Cruising & Liveaboard Forum 4 08-01-2010 04:43 PM
Waste deck fitting cvsheppard Pacific Seacraft 2 07-28-2010 07:39 PM


All times are GMT -4. The time now is 01:58 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.