Multimeter

[chrisjw]

OK...............I've now acquired a multimeter, in readiness for my introduction into re-wicking & coiling......My problem is, I've totally forgotten how to use it...... ......I was directed to a video on VTTV, but, unfortunately, the multimeter they were demonstrating with was knackered, so they abandoned it......What I need to know, is which connections the cables go into & the settings for testing i.e. DCV, ACV, OHMS etc.......I think I may be right in saying the black lead goes to COM and the red to V*mA.....and the setting to ohms ( but not sure whether it should be 200k, 20k etc ).....could someone guide me in the right direction or give a link to a video........thank you very gladly.............

[DiscoDes]

Do you have a link to the multimeter you have?

[vereybowring]

Sounds like you have the leads set correctly.
On the ohms setting it depends on the meter in question but it is usually the lowest value, on mine this would be 200.
To use put the red to the positive or middle pin and the black to the negative or outside threads. This will give you a value. If the meter you bought is a cheap one you then need to firmly press the two probes together to test the resistance of the meter and leads. The second result is taken away from the atty resistance you got to determine the actual resistance of your atty.
In general read any instructions that came with it or google the meters model number saying "user guide multimeter <model number>"

[chrisjw]

Jun 24, 2012 11:59:50 GMT DiscoDes said:

Do you have a link to the multimeter you have?

Linky: www.ebay.co.uk/itm/160732680715?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_2855wt_1185

[2risky]

Depends what you're measuring, but ohms measure resistance, which is what you want for testing coils. The measuring range will be a small number, since you're looking at 1-4 ohm for a coil, but the smallest value on mine is 200, which means it measures between 0 and 200 ohms. 200k (200,000) is far too big for instance.

For testing small resistances you might also want to check the offset error by touching the probes together. Whatever the reading is needs to be subtracted from your actual measurements. Say it's 0.5 ohms error, and you measure a coil at 3.5, the real value is 3 ohm + 0.5 ohm error. This only matters at the bottom of the range where even 0.1 ohm represents a fairly large proportion of the measured value.

Black lead to COM. If you have the choice between A and mA, choose mA for the red lead, since this is low current DC.

Hope it makes sense.

Edit for pic
Black to COM
Red to VohmmA
Dial to 200 ohm.
Measure offset error. Go for it.

[Batdragon (AKA Batty)]

To add to the comments above if your going to measure the voltage of a battery turn the dial to the DCV section and put it to the 20 setting.

If your measuring resistance, then make sure you do not have any power on it or the atty connected to anything as you will get false readings

[chrisjw]

Thanks guys...........I'll get my head round that.....Meanwhile, this is the new re-wickable vision........Where do I put the black probe and red probe?

Attachments:

[2risky]

I use battery contact points underneath. Stick one probe into the middle hole. There are various points for the other probe, but try for where the outer lip of an ego battery connector would touch the underside.

[lazydog]

here you are Chris
www.electromarket-pics.co.uk/download/DT830_EN.pdf

[Sandra (aka Chillax)]

Jun 24, 2012 11:57:13 GMT chrisjw said:

OK...............I've now acquired a multimeter, in readiness for my introduction into re-wicking & coiling......My problem is, I've totally forgotten how to use it...... ......I was directed to a video on VTTV, but, unfortunately, the multimeter they were demonstrating with was knackered, so they abandoned it......What I need to know, is which connections the cables go into & the settings for testing i.e. DCV, ACV, OHMS etc.......I think I may be right in saying the black lead goes to COM and the red to V*mA.....and the setting to ohms ( but not sure whether it should be 200k, 20k etc ).....could someone guide me in the right direction or give a link to a video........thank you very gladly.............

Was it knackered Sorry Chris, I went for a cuppa when that was on as I had little interest. *lesson to self, check things ain't knackered before directing peeps to links*

[chrisjw]

Jun 24, 2012 13:20:05 GMT Sandra (aka Chillax) said:

Jun 24, 2012 11:57:13 GMT chrisjw said:

OK...............I've now acquired a multimeter, in readiness for my introduction into re-wicking & coiling......My problem is, I've totally forgotten how to use it...... ......I was directed to a video on VTTV, but, unfortunately, the multimeter they were demonstrating with was knackered, so they abandoned it......What I need to know, is which connections the cables go into & the settings for testing i.e. DCV, ACV, OHMS etc.......I think I may be right in saying the black lead goes to COM and the red to V*mA.....and the setting to ohms ( but not sure whether it should be 200k, 20k etc ).....could someone guide me in the right direction or give a link to a video........thank you very gladly.............

Was it knackered Sorry Chris, I went for a cuppa when that was on as I had little interest. *lesson to self, check things ain't knackered before directing peeps to links*

[chrisjw]

Right..I poked the red probe up through the hole in the bottom & held the black probe against the outside of the bottom knurled sleeve & got a reading of 03.2............Is that about right?

[Deleted]

put your probes together , and whatever reading you get from probes only deduct from 3.2 , that should then give you actual value of coil

[chrisjw]

Jun 24, 2012 14:42:01 GMT @storm said:

put your probes together , and whatever reading you get from probes only deduct from 3.2 , that should then give you actual value of coil

It jumps all over the show when I do that, but I think it settled on 01.1 in the end.......

[chrisjw]

So that gives a final reading of 2.1