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Ammeter installation


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robb420in323 
Copper - Posts: 101
Copper spacespace
Joined: July 13, 2004
Location: Ontario, Canada
Posted: July 14, 2004 at 1:01 PM / IP Logged  

Can i just creat a loop with the unused portion of the fuse block in my stereo for an ammeter. or does it actually have to be inline with the amp??

Please help..

Thanks!

Hunter S. Thompson for sheriff
auex 
Platinum - Posts: 5,041
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: December 23, 2002
Location: Arizona, United States
Posted: July 14, 2004 at 4:09 PM / IP Logged  
Must be in line.
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robb420in323 
Copper - Posts: 101
Copper spacespace
Joined: July 13, 2004
Location: Ontario, Canada
Posted: July 16, 2004 at 8:35 PM / IP Logged  

Why cant i just install it in a power wire loop created off the fuse block? WHat will happen?

If its inline wont it weaken the power wire strength.. the weakest link??

Hunter S. Thompson for sheriff
auex 
Platinum - Posts: 5,041
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Joined: December 23, 2002
Location: Arizona, United States
Posted: July 16, 2004 at 9:08 PM / IP Logged  
The only way to measure amperage is in-line. And yes it cause a loss. I don't really understand why people even want these.
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
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robb420in323 
Copper - Posts: 101
Copper spacespace
Joined: July 13, 2004
Location: Ontario, Canada
Posted: July 17, 2004 at 6:56 PM / IP Logged  

So we can tell how much Amps are Power Amps are drawing.

Indicates any improvment from Electrical System upgrades..

Good enough mr blind amp?

Hunter S. Thompson for sheriff
auex 
Platinum - Posts: 5,041
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: December 23, 2002
Location: Arizona, United States
Posted: July 18, 2004 at 12:06 AM / IP Logged  
But why exactly, and specifically, do you need to know how many amps the amplifier is drawing? For most people this information is absolutely useless, just like driver sensitivity. Even if you had a need for this information, you still shouldn't need it all the time and would only used it for tuning information. Also, how does an ammeter tell you if electrical system upgrades help audio performance, the amplifier's current draw will be just about the same whether you alternator is putting out 85 amps or 300 amps. If the amplifier manufacturer is a decent then their spec sheet will tell you exactly how many amps it can draw.
Sorry, just don't understand the need for this on an amplifier.
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
robb420in323 
Copper - Posts: 101
Copper spacespace
Joined: July 13, 2004
Location: Ontario, Canada
Posted: July 18, 2004 at 10:01 AM / IP Logged  

Your right. I just picked it up for 6 bucks at CT.. 

But i dont want it inline, i want it monitoring the whole system in the trunk..

Theres 2 spots on the fuseblock  i can loop, cut the loop , put the meter in...

Are you telling me that theres no Amprage in a power wire connected to the batt at both ends??

Hunter S. Thompson for sheriff
backinblack_gp 
Member - Posts: 21
Member spacespace
Joined: March 07, 2004
Location: United States
Posted: July 21, 2004 at 8:28 PM / IP Logged  
Look around for a digital ammeter that uses a shunt bar and sense leads.  It's a little safer than running inline...
robb420in323 
Copper - Posts: 101
Copper spacespace
Joined: July 13, 2004
Location: Ontario, Canada
Posted: September 21, 2004 at 8:07 PM / IP Logged  
But theres no amperage in the unused portion of my Fuse Block???
Hunter S. Thompson for sheriff
Teken 
Gold - Posts: 1,492
Gold spacespace
Joined: August 04, 2002
Location: Aruba
Posted: September 21, 2004 at 10:47 PM / IP Logged  
I hope you do realize that the current you will be measuring is dynamic, and not static.
If your intent was to measure the current output of the alternator, then that would be something worth doing.
But to monitor the amplifier, that isn't neccessary. As
backinblack_gp stated, you would be wise to install a digital ampere meter, which uses a shunt.
Having another high current transferring cable, will only cause you more grief.
Regards
EVIL Teken . . .
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