Ammeter connection

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Ammeter connection #181555
10/15/08 11:43 PM 10/15/08 11:43 PM

Merlin

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Member

Joined: Jan 2004
Posts: 171
NW Indiana

I have a 0-75 Ammeter that I need to install. This meter is a direct connection meter that does not require a current transformer. I am not sure of the proper connection this way. I have always previously insatlled the ones with the CT. Can someone give me the right connection procedures. I want to make darn sure that i hook it up right. Thanks, Merlin

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Re: Ammeter connection [Re: Merlin] #181557
10/16/08 01:39 AM 10/16/08 01:39 AM

gfretwell

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Joined: Jul 2004
Posts: 9,365
Estero,Fl,usa

Does it have lugs big enough for 4ga wire?

Greg Fretwell

Re: Ammeter connection [Re: gfretwell] #181558
10/16/08 06:35 AM 10/16/08 06:35 AM

Merlin

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Member

Joined: Jan 2004
Posts: 171
NW Indiana

If i remember right, it has 1/4-20 studs.

Re: Ammeter connection [Re: Merlin] #181561
10/16/08 09:48 AM 10/16/08 09:48 AM

JBD

Member

Joined: Jul 2001
Posts: 599
WI, USA

A direct connected meter is installed in series with the load.

Re: Ammeter connection [Re: JBD] #181562
10/16/08 11:22 AM 10/16/08 11:22 AM

mikesh

Member

Joined: Jun 2006
Posts: 613
Victoria, BC, Canada

-----0-0------- Line 1 --------------load--]
shunt ^
--------------- Neutral or Line 2 ----load-]

Last edited by mikesh; 10/16/08 11:25 AM.

Re: Ammeter connection [Re: mikesh] #181566
10/16/08 11:49 AM 10/16/08 11:49 AM

JValdes

Member

Joined: Jun 2007
Posts: 301
South Carolina

Directly in series with the load. Take one leg of the load and connect it to the meter. Take the other supply leg and connect it to the meter.

Motor - Meter - Line. Example only

Re: Ammeter connection [Re: JValdes] #181579
10/16/08 06:08 PM 10/16/08 06:08 PM

Merlin

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Member

Joined: Jan 2004
Posts: 171
NW Indiana

Ok. I thought that was the case but didn't want to let the smoke out not being sure.

Re: Ammeter connection [Re: Merlin] #181587
10/17/08 03:57 AM 10/17/08 03:57 AM

Trumpy

Member

Joined: Jul 2002
Posts: 8,260
SI,New Zealand

Originally Posted by Merlin

Also, bear in mind that the supply will need to be de-energised while this meter is installed, trying to do a job like this with the power still connected is just silly.

Re: Ammeter connection [Re: Trumpy] #181596
10/17/08 09:59 PM 10/17/08 09:59 PM

BigB

Member

Joined: Mar 2004
Posts: 742
Tucson, AZ USA

Funny, just a little while ago I was thinking about those old ammeters we used to have on the dashboards of our cars.

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