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amperage meter schematic needed

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=31369
Printed Date: May 16, 2025 at 4:46 AM


Topic: amperage meter schematic needed

Posted By: disco-stu
Subject: amperage meter schematic needed
Date Posted: April 30, 2004 at 11:34 PM

I have 2 power meters for my car audio but after a amp meter for it too so i can see the current draw all the time, pref digital,

if anyone knows of a circit or schematics please leave a link.

thanks in advance.

Stu




Replies:

Posted By: Mad Scientists
Date Posted: May 02, 2004 at 12:41 PM

 Not sure if you're looking for a temp installed meter or a permanent one; how much current are you expecting to draw and where do you want to mount the display?

 Regards,

 Jim




Posted By: disco-stu
Date Posted: May 02, 2004 at 11:16 PM

Basically i want to add this digital readout to my main power in 0 gauge line so i can see how many amps my system is drawing.

Thanks




Posted By: Mad Scientists
Date Posted: May 03, 2004 at 5:15 PM

 Where do you want the display mounted?..

How much current are you expecting to see?.

Is this to be a permanently mounted meter?

 Jim




Posted By: disco-stu
Date Posted: May 03, 2004 at 7:42 PM

In my boot i have 0 gauge cable comming in to a disroblock with a volt meter built into it, then 2 4 gauge cable out , i want it just before the distro block so i can see what the total current my system is drawing.

not sure, a 3 digit 7 seg display should be good enough, think the amperage would be round 60 - 100.

yes this is to be prem mounted in a perspex box i will make.

Thanks for your help.




Posted By: disco-stu
Date Posted: May 04, 2004 at 9:05 PM
^^^^^^^^^ bump



Posted By: Mad Scientists
Date Posted: May 05, 2004 at 5:02 PM

 Look into using a shunt to measure that amount of current.. best places to look would be a motor home parts company, or something for automotive charging systems.

 Regards,

 Jim




Posted By: disco-stu
Date Posted: May 06, 2004 at 4:42 AM

Any ideas where to get a schematic for it?

thanks


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