ohm help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

76bonanza · 03-09-2007, 08:46 PM

I am electical handicaped if I want to check if a wire is good from one end to the other I can use my multimeter on ohms correct? So I set it on 200 and touch both ends it buzzes and reads .3 is that good?

Thanks for your help.

**WorkinLonghorn** · 03-09-2007, 08:57 PM

That's good

BustedTruck · 03-09-2007, 09:06 PM

Thats good. Try touching your leads together it will probably read .3 ohms also

regal8r · 03-09-2007, 09:22 PM

if u want to get a better reading of a wire and its conductivity, put your meter in the DC voltage setting and put each lead on each side of the wire with current flowing through, if it gives u more than .2v then u need to replace it. this is referred to as a voltage drop test and MUCH more effective than a resistance test.

76bonanza · 03-09-2007, 09:35 PM

My meter does not have that setting I dont think not very high dollar.

regal8r · 03-09-2007, 09:51 PM

can u take a pic of it?

regal8r · 03-09-2007, 09:56 PM

look for settings that say dcv or acv

68C15 · 03-09-2007, 11:56 PM

general rule of thumb; when doing a voltage drop test you should not have more than .2V drop for each connection. (this is why crimp connectors are bad and soldering is best.)

regal8r · 03-10-2007, 12:14 AM

Quote:

Originally Posted by 68C15

general rule of thumb; when doing a voltage drop test you should not have more than .2V drop for each connection. (this is why crimp connectors are bad and soldering is best.)

Quote:

Originally Posted by regal8r

if u want to get a better reading of a wire and its conductivity, put your meter in the DC voltage setting and put each lead on each side of the wire with current flowing through, if it gives u more than .2v then u need to replace it. this is referred to as a voltage drop test and MUCH more effective than a resistance test.

and on the crimp connectors/butt splices, as long as they are not exposed to the elements, they would be find to use...other wise just use good ol' heatshrink

76bonanza · 03-10-2007, 10:13 AM

no niether of those settings.

regal8r · 03-10-2007, 04:49 PM

Quote:

Originally Posted by 76bonanza

no niether of those settings.

can u take a pic of it and post it up on here?

03-09-2007, 08:46 PM	#1
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	ohm help I am electical handicaped if I want to check if a wire is good from one end to the other I can use my multimeter on ohms correct? So I set it on 200 and touch both ends it buzzes and reads .3 is that good? Thanks for your help. __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

03-09-2007, 08:57 PM	#2
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,883	Re: ohm help That's good __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

03-09-2007, 09:06 PM	#3
BustedTruck Registered User Join Date: Dec 2006 Location: Braselton, GA Posts: 245	Re: ohm help Thats good. Try touching your leads together it will probably read .3 ohms also

03-09-2007, 09:22 PM	#4
regal8r Registered User Join Date: Oct 2006 Location: Lincoln, Nebraska Posts: 112	Re: ohm help if u want to get a better reading of a wire and its conductivity, put your meter in the DC voltage setting and put each lead on each side of the wire with current flowing through, if it gives u more than .2v then u need to replace it. this is referred to as a voltage drop test and MUCH more effective than a resistance test.

03-09-2007, 09:35 PM	#5
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	Re: ohm help My meter does not have that setting I dont think not very high dollar. __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

03-09-2007, 09:51 PM	#6
regal8r Registered User Join Date: Oct 2006 Location: Lincoln, Nebraska Posts: 112	Re: ohm help can u take a pic of it?

03-09-2007, 09:56 PM	#7
regal8r Registered User Join Date: Oct 2006 Location: Lincoln, Nebraska Posts: 112	Re: ohm help look for settings that say dcv or acv

03-09-2007, 11:56 PM	#8
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: ohm help general rule of thumb; when doing a voltage drop test you should not have more than .2V drop for each connection. (this is why crimp connectors are bad and soldering is best.)

03-10-2007, 10:13 AM	#10
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	Re: ohm help no niether of those settings. __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO



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