Resistance testing with a multi meter

[locke2121]

I have one of these: http://www.cozypad.com/wp-content/uploads/multimeter_image.gif

But I don't have the book that came with it. How do I test resistance like with clearos and stuff??

 

[hifistud]

you nee the OHMS setting - the range 0-20, and plug the leads into the two lower holes - black in the bottom one, red in the next one up (bottom right)...

Touch the two leads together, and you will get a reading - note this figure, it's the resistance of the leads themselves, and you'll need to subtract that from the reading you get when you touch the two probes to the thread and centre pole of the atty/cato in question.

 

[ukeman]

test an atomizer or carto? if that's what you mean,
click down to the 200 around 6:15 clock wise.... see the Ohm sign?
that's for resistance.
1. before you test the carto, touch the red and black tips together to get the internal resistance of the meter. remember the reading and subtract that later from the reading of the carto or atty.
2. touch the black (pos) to the inside of the hole in the connector of the atty/carto.
touch the red to the threads of the atty, or just on the rim of the threads of the carto.
3. subtract your 1. reading from 2. and that's your resistance.
sometimes cheapo's go haywire with the readings but it should work.

I have one of these: http://www.cozypad.com/wp-content/uploads/multimeter_image.gif

But I don't have the book that came with it. How do I test resistance like with clearos and stuff??

 

[Uncle Sam]

If you touch the leads together on your ohmmeter and they DON'T read ZERO....get another ohmmeter! You are measuring atomizers that spec between 2 and 5 ohms max, a little more than a standard light bulb. It may be beneficial to use the mOhm setting to read between 2000 and 5000 milliohms for greater accuracy.

If you have the means - get a Fluke or a Simpson. They are the best meters on the planet.

 

[retird]

Link to a manual for your MM....

http://all-sun.com/manual/Dt830_en.pdf

 

[Rocketman]

If you have the means - get a Fluke or a Simpson. They are the best meters on the planet.

better than my HP?
best on the planet,
sheeez

Which model of the Simpson would be best for attys ?


4 wire resistance measurements might help, lol,



locke,
let us know if you need any more assistance.


Rocket

 

[Uncle Sam]

A model 260E Simpson is the best.

THE best. It has been used by DoD precision measurement labs for the last 30 years.

...and, I use it!

 

[locke2121]

Awesome guys! Thanks a bunch lol.

 

[Rocketman]

A model 260E Simpson is the best.

THE best. It has been used by DoD precision measurement labs for the last 30 years.

...and, I use it!

I ran a Precision DOD Calibration Lab (aboard the USS JFK CVA-67) , and shore based labs over 30 years ago. And a NASA Precision Calibration Lab after that. The Simpson was a NICE analog meter. It is HANDY for field troubleshooting or for finding a broke diode in a power supply

This is the BEST you are referring too?
It would be More than Adequate for e-cig applications. Like making 'fresh off the charger' battery measurements, to make sure your charger isn't going over, say 4.2 VDC, or to sort a bag of cartos to find the 1.5 ohm ones. It is a HANDY meter and easy to learn (that's why the DOD uses it). But use it in a 'Precision Lab', not for precision work we didn't.

We didn't even have to use 'Precision Equipment' to calibrate the 260 series meters. A simple Fluke 760A meter calibrator was all that was needed, and I wouldn't call that 'Precision'.

The Simpson is a nice, somewhat fragile analog meter. The best?
Probably wouldn't be used to make ppm voltages measurements, now would it?

 

[Rocketman]

Here a PRETTY GOOD, but not BEST meter.

Even does 4 terminal ohms

 

[Uncle Sam]

Ok, I will concede that there are probably better meters that exist, but I used that Simpson to calibrate ageing on Rubidium standards for universal time hack broadcasts....the ones that freq. hopper encryptions are timed against (hmmm... that may actually be classified secret, but I don't care!)

Anyway, they ARE fragile. Not for rookies. If it isn't set on the right scale and you apply too great of voltage (or try to measure Amps in parallel!!!) you will destroy it and have to put in new components. Other than that, they are sweet. They are terrible field meters in my opinion due to their size and weight. They ain't going to fit in a tool bag!

Vape ON!

 

[Rocketman]

Uncle Sam,
my apologies. I only keyed on the BEST part of your post

Knowing how to use the 260 properly is a useful skill, and it's a shame many 'Digital World' people never learn how to use one.
It is more capable than it's specifications would imply.

The bank of Cesium standards at Boulder are a little more accurate than the Rubidium bank (and that's not classified )

Best, Always, Never;
words to get your 'but' in a bind