![]() |
Is this multimeter good to check for parasitic draw?
It can measure AC colts, DC volts and resistance.
Can I use it? If so, what setting should I put it at and what readings should I expect to see?http://forums.pelicanparts.com/uploa...1588369876.jpg |
No. You need one with more functions.
Here is a decent Harbor Freight unit. Not great. Decent. $23 Click on the multimeter in the link and get the larger pic. See the dial at 6:00-7:30 on the clock. That's what you need to test amp draw. https://www.harborfreight.com/11-function-digital-multimeter-with-audible-continuity-61593.html Plug the red cord into the "fused" port. Break a battery cable and bridge with the MM cable pointers. That will complete the circuit and tell you how much is being sucked out of the battery. 50 one thousandths of an amp (Ma - milla-amps) or less is what you are looking for when cooties are remedied. The basic settings settings "sense" (not an electrician) the volts and resistance. The amp draw settings literally make the MM part of the circuit when you move the red probe into the fused plug-in port. |
Thanks, that’s what I thought, need one that measures amps, right?
http://forums.pelicanparts.com/uploa...1588371195.jpg |
Yes. The big A with the straight line and the little dashes under it to get technical. :)
But you have to move the red probe to the fused port. Perhaps the 200 m spot on the dial. Others will know better. |
Yes, Amps. Most meters have to be in the circuit, in series. That means disconnecting the wire you want to check, so the current flows through the meter. Quite a few people blow them up by using the wrong scale, or trying to measure wrong.
I strongly suggest getting the clamp-on kind. Need to make sure it can read DC current, some are AC only. This one will measure DC current by just clamping over the wire. https://www.harborfreight.com/cm610a-600a-t-rms-acdc-clamp-meter-64015.html |
Quote:
Sigh. |
Yep - Just clamp around one wire and it measures the current flowing through the wire.
One issue with clamp-on meters is they sometimes don't have sufficient range/sensitivity to measure small currents. You can compensate for this by clamping around a wire looped several times (need a long wire) and dividing the total current by the number of passes of wire though the clamp. |
Quote:
Need to be careful purchasing, many are AC only. |
Quote:
How sweet that would be. Quote:
|
Quote:
https://www.youtube.com/watch?feature=fvwrel&NR=1&v=KF1gijj03_0 |
Quote:
|
Quote:
Watching pwd's vid now. Edit: Watched that vid last week. He's good. |
|
If you are checking an older car you can also use a simple test light. Disconnect the battery terminal and connect one end of the test light to the post and the other end to the cable. If the light comes on there is a draw. Just remove fuses until the light goes out and that is the circuit that has the draw on it. HF also has a cheap Multimeter that will work I have had this one for years and it works great got it on sale for like $3
https://www.harborfreight.com/7-function-digital-multimeter-63759.html?_br_psugg_q=multimeter |
Quote:
http://forums.pelicanparts.com/uploa...1588378363.jpg |
you can always put them in integral form, you know...
|
Quote:
|
Ya gotta face reality
|
Quote:
|
and that puts fields in yer face...
|
All times are GMT -8. The time now is 08:09 AM. |
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website