Bought a multi-meter and I have problems

[LEDBETTER122]

I just went out and bought a multi meter to test the ohms on my coils. On my meter is has 2 setting for ohm RX1k and RX10. I followed the instructions Excepts for putting it on 200 (my device does not have one) I put it on Rx10 and when I put the leads together its reading 1.5. Okay so I put the leads on the atomizer and im getting a 2.0-2.2 reading.

On many post im seeing where they say subtract the initial 1.5 (That I got from putting the leads together), and that would mean my coils are .5-.7 which I know is wrong since I have facory coils im testing that are set at 2.2 ohm.

Any help?

 

[State O' Flux]

Brand and model of DMM please?

 

[bluecat]

Try reading this

Novice with multimeters - DoItYourself.com Community Forums

Mainly this part

Sorry , but you have that backwards. If the resistance is 25 ohms, then on the Rx1 scale, the needle would indicate 25. On the Rx10 scale, it would indicate 2.5. On any higher scales, the needle would be at or very near Zero.

Well that doesn't make any sense in your case. Are you sure you have the meter on the Rx10? Sometimes my cheapo mm slides a little off the mark.

 

[LEDBETTER122]

Its a ETek model 10729W

@Bluecat, Im at work right now, but I will be going home in about 45 min and I will test some other coils and answer your question

 

[edyle]

I suspect you are not touching the correct points on the atomizer;

I think you should get about 20 if you touch the right 2 spots.


(do i got that backwards?)

 

[bluecat]

Yeah the 2.2 it is reading would be 22 ohms... which is quite high.

I am definitely not an expert with analog multimeters, so hopefully someone with that expertise can chime in.

Also not sure how long you have had it but I always clean my leads with iso...

 

[State O' Flux]

This it?

Yet you say:

"I followed the instructions Excepts for putting it on 200 (my device does not have one) I put it on Rx10"

Is that correct? You have a Etek 10709 meter, but there is no 200XΩ (200 max ohms) setting? Do you have the next lowest setting, which would be 2KXΩ (2000 max ohms)?

 

[bluecat]

This it?

Yet you say:

"I followed the instructions Excepts for putting it on 200 (my device does not have one) I put it on Rx10"

Is that correct? You have a Etek 10709 meter, but there is no 200XΩ (200 max ohms) setting? Do you have the next lowest setting, which would be 2KXΩ (2000 max ohms)?

10729W from wally world. you missed a 2.

http://www.walmart.com/ip/Voltage-Meter-10729W/14521542

 

[bluecat]

I suspect you are not touching the correct points on the atomizer;

I think you should get about 20 if you touch the right 2 spots.


(do i got that backwards?)

Think you got that backwards. should be .22 slide the decimal to right one space. 2.2 on the RX10 scale. Similar to 25 ohms on the RX10 would be 2.5 slide to right.. sounds like I am dancing with my daughters to crisscross at their father daughter girl scout dances. It's kinda cool when they are young... at 15 though her friends laugh at the dad that can't dance, but I get props for trying.

If it was RX1 you do nothing.. RX1k slide 3 spots (I think.. never used that setting.) would be too low to measure on it though.

It takes me forever to get a good touch on the atty.

 

[bluecat]

Oh hey mate found this for you too...

http://www.aviationhs.net/download.axd?file=add528e9-9a77-44bf-b9a1-584e35fefd2b&dnldType=Resource

Specifically...

#B5 the zero adjust.. I think it is that little black knob... I forgot about that little thing.

 

[edyle]

Oh hey mate found this for you too...

http://www.aviationhs.net/download.axd?file=add528e9-9a77-44bf-b9a1-584e35fefd2b&dnldType=Resource

Specifically...

#B5 the zero adjust.. I think it is that little black knob... I forgot about that little thing.

Ohhhhh and analog meter!! Waow; last time I saw one of those was back in .... the last century!

 

[frank.gotch]

Do you really need a seperate device to check your coil? I mean if I have a mod that displays resistence, and I wanted to try out a rebuildable atomizer, couldn't I just check the resistence on the mod?

 

[Ryedan]

Its a ETek model 10729W

@Bluecat, Im at work right now, but I will be going home in about 45 min and I will test some other coils and answer your question

View attachment 292569

LEDBETTER, if that's the one and I understand it correctly, it's not good enough. The X10 means that on the ohms scale, the green one at the top, the numbers are times 10. So the number 1 on the scale is 10 ohms. IMO this is not going to give you enough resolution to be useful. Too hard to tell the difference between 1 ohm and 1.5 ohms. Way too hard in sub-ohms.

 

[Ryedan]

Do you really need a seperate device to check your coil? I mean if I have a mod that displays resistence, and I wanted to try out a rebuildable atomizer, couldn't I just check the resistence on the mod?

You don't have to have a DMM if you've got a PV that reads ohms, but I would not be without one. It allows checking battery volts and I've used it to check continuity of mechanical mod parts to help troubleshoot issues. I think I paid around $15 for mine shipped. Well worth it IMO.

 

[bluecat]

Do you really need a seperate device to check your coil? I mean if I have a mod that displays resistence, and I wanted to try out a rebuildable atomizer, couldn't I just check the resistence on the mod?

No you wouldn't if you are satisfied with the read out on your device. Some devices require a charge through the atty to read the ohms. That kinda defeats a purpose for safety. I typically check on a mm and device. It is engrained in me to measure twice cut once.

 

[bluecat]

Ohhhhh and analog meter!! Waow; last time I saw one of those was back in .... the last century!

A wonderful century! Why can't my kids enjoy zepplin instead of gaga.

 

[LEDBETTER122]

Sorry my internet at home went out. I think I have found a way (Since I only make 2.2ohm coils).

When I set it to zero, I measured 20 "Factory" 2.2 ohm coils and they all set on my meter ar around .5 ohm +/- 2. So what I did was I made a coil and measured it to read around .5ohm (On the meter) so I know its at 2.2 ohm.

Will this method be sufficient?

 

[DaveP]

Go to Harbor Freight or any auto parts store and find one for $10 to $15 that has an Rx1 or 200 ohm scale. Just about every retail store sells them these days. Lowes and Home Depot have the same cheap Chinese models and they are fine for what you need to do.

 

[bluecat]

It would probably suffice. It all depends on your risk tolerance.

For me I would do as DaveP suggest but get a digital one and use the 200 ohm scale. I did have troubles finding the cheap one at the Lowes I go to. My wife was getting ansy for me to look at toilets, go figure. Too much guessing for me for electric current to be at my face using an analog. Also you may try to put fresh batts in. My came with a weak battery. There is a break even point at $ vs usage on these things that we use. If you will be using it for other applications the more expensive ones are better. The auto ones are really nice, but Ic an do without that feature.

Here is the MM I got.

LCD Digital Voltmeter Ammeter Ohm Multimeter DT830B - Amazon.com

 

[LEDBETTER122]

what I did was I put the offset (Both Probes touching) to 1.7ohm, so when I put them on the coils they read 2.2.

I also Re-measured the 20 factory 2.2 ohm coils to confirm its accuracy at reading 2.2 ohm coils