help with multimeter(ohms)

[ingerri]

i just got my supplies to start rebuilding ce5's. i zeroed out my ohms meter, and tested a ce5 that is working on pv. shows .05. i was like hmmm. put it to volts and check battery(just to play with meter) battery checks out at 3.7 as expected. put back to ohms and next tested a cartomizer thinking its easier to find right parts to put the lead to. it also shows .05, what am i doing wrong for testing ohms. want to get this figured out before i need to start rebuilding, don't want to blow my pv. btw putting red lead on positive connection where it touched battery, and neg on threads that screw into battery.

 

[myxomatosis]

Those can be hard to test accurately since the contacts are recessed but make sure you're on the right setting. Can you post a pic of your multimeter face?

 

[skoot]

You have to hold the leads onto the carto very, very still. I found it best to hold the leads right to the wires rather than the casing, at least on my Nova heads. Make sure you're measuring the positive wire with the red lead too, that can make a difference depending on how your gear is wired.

 

[ingerri]

this is not mine, but a pic of the one I have. set on second lowest ohms setting red lead in middle black lead in bottom http://www.smcelectronics.com/PICTURES/DVM1-L.JPG

Those can be hard to test accurately since the contacts are recessed but make sure you're on the right setting. Can you post a pic of your multimeter face?

 

[ingerri]

You have to hold the leads onto the carto very, very still. I found it best to hold the leads right to the wires rather than the casing, at least on my Nova heads. Make sure you're measuring the positive wire with the red lead too, that can make a difference depending on how your gear is wired.

I tried with head attached and with head only. and yes red=+ black=- but its not only the stardust ones the regular cartos don't give reading either

 

[Hoosier]

Try setting it to the 200 Ohm scale, zero out your leads, and try the test again.

2k is just too far away from the amount you are testing. (And I'm not too sure about that meter, but it is what you have.)

 

[Eddie.Willers]

Try setting it to the 200 Ohm scale

+1
Your meter needs to be set on the lowest possible resistance scale - your carto, remember, is 3 ohms or less - and make sure the meter's internal battery is fresh.

 

[fed71]

You need to set a value of 200 ohms. Connect the test leads together and see the value in the display. For example, it can be shown 0.5 ohm.
This value is subtracted from the readings in the resistance measurement.
That's - 2 ohms minus 0.5 ohms and the correct resistance is 1.5 ohms.

 

[jlew]

Set Multimeter to value of 200 Ohm

Zero Multimeter:



Remember the number you get - in this case = 0.5

Place leads inside carto/atty, touching the proper place:
(this is hard to do with one hand - lol - luckily, the +Pos lead fits
right into the center hole in the bottom of the +Pos post.)



Subtract amount in Zeroing test (Photo 1) from total (Photo 2)

In my case, the Vision 2.0 (V3) in the photo is showing a total Ohm reading of 2.6 Ohm

The heads I buy are generally 2.4 Ohm -- in this case, the meter was jumping a bit from
movement between 2.9 and 3.1 because I was working with only one hand so I could take
the pics with the other hand.

These cheaper Multi's can show a misreading of .2 to .6 anyway.

All in all, this reading is pretty accurate -- the head is marked as a 2.4Ω and I got 2.6Ω
in the reading.

Hope this helps

 

[ingerri]

just had a thought(oh no LOL) if I took an old passthrough, stripped the wires and hooked it up pos to pos, and neg to neg, of a mulitmeter and screwed on an atty would that work as an adapter? thought it might be more stable than trying to keep the lead steady

 

[ingerri]

or would one of these work, put alligator clips on it and clip it to the leads(just having trouble getting steady connection putting leads on clearo View attachment 183569

 

[ingerri]

oh just ordered one of these, and going to get some alligator clips to get better hold of threads. will let you know how it goes View attachment 183707