Ohms Meter

[Matt.]

Hi, I’ve finally decided to build my own coils, done a couple of duel coil builds so far and very pleased with the results. I’m using a regulated mod. Question is more about the ohms meter. When I’ve built my coils I test fire them on the meter itself. Now my mod has duel 18650 batterys but my ohms meter is single 18650 (3000mAh in both). My worry is... when I fire the coils up using the ohm meters button, surly that meter is drawing to many amps from the battery? It also takes an age for the coils to get hot and usually by the time I’ve got the coils firing evenly and everything, the atomiser has become too hot to touch, surly this much heat transfering into the meter can’t be good for it?

So two questions.... 1) is my ohms meter asking too much from its single 18650 battery when firing up a duel coil build reading 0.16 - 0.20 ohms (total). Ohms meter is a geek vape 521 mini. (I know I could safely fire them up from my mod to test but it’s convenient from the meter)

2). The heat generation from the coils whilst testing leaves my atomiser and the top of the meter too hot to touch, will this heat transfer damage my ohms meter or if I test on my mod will it damage my mod?

Mod is voopoo drag
Rda is voopoo rune
All batteries used are Samsung 30q

 

[Simon G]

So two questions.... 1) is my ohms meter asking too much from its single 18650 battery when firing up a duel coil build reading 0.16 - 0.20 ohms (total). Ohms meter is a geek vape 521 mini. (I know I could safely fire them up from my mod to test but it’s convenient from the meter)

I don't know the specs of the 521 mini but I have the Geek Vape Tab Pro and that's a fixed 50w fire, so that will be fine with a single cell ..... there's plenty of single cell 75 and 80w mods right? ... it's probably only drawing about 15a at the most. I'm not sure where you are getting the "surly that meter is drawing to many amps from the battery?" from .... I would say surely not?


2). The heat generation from the coils whilst testing leaves my atomiser and the top of the meter too hot to touch, will this heat transfer damage my ohms meter or if I test on my mod will it damage my mod?

sounds like you might be going a bit far with the dry firing .... you only need to pulse it gently. It's it's getting too hot then let it cool down, I don't really know what to say, hot things get hot.

 

[nwhornet]

If you're happy with the resistance on the meter put the attie on a mod to dry fire & get hotspots out. Meters are fine as a building platform & checking ohm's but just as easy to do it on a biggish mod & less stress on battery. You only need to glow coils dull red, no need to get bright red/yellow.

 

[Matt.]

I would’ve calculated it but couldn’t find the specs of the meter... thank you . I was obviously worrying too much!

As for the heat... yeah I kinda thought that but wanted to check, I’ll go easier next time! Thanks again

 

[Simon G]

I would’ve calculated it but couldn’t find the specs of the meter... thank you . I was obviously worrying too much!

As for the heat... yeah I kinda thought that but wanted to check, I’ll go easier next time! Thanks again

apparently the output wattage is only 31-33w ... so that's not going to be an issue, you probably won't ever be drawing more than 10amps from the cell in the meter.

 

[Matt.]

apparently the output wattage is only 31-33w ... so that's not going to be an issue, you probably won't ever be drawing more than 10amps from the cell in the meter.

Tbh I’m not really sure why I thought it would either! Worrying too much! I think I was wondering if it worked more like a mech... obviously that would be stupid! I’m learning as I go and want to be safe. Cheers bud!

 

[Simon G]

Tbh I’m not really sure why I thought it would either! Worrying too much! I think I was wondering if it worked more like a mech... obviously that would be stupid! I’m learning as I go and want to be safe. Cheers bud!

nah, it will work like a regulated mod (I would hope anyway) ... a mech ohm reader sounds kind of dangerous.

hope your mind is at ease more now.

 

[joe clay]

Not sure on your ohms reader as i have the tab 521 and although yest the atty can get hot just remember that when your building on it you are basically dry firing it and as theres no juice to help cool it a bit, and remember to NOT just keep you finger or thumb on the fire button til the coil glows but to gradually pulse fire it till you get it to where you want it.

 

[greenbrucelee]

I use 521 mini and use a Samsung 25r in it. With my mods I use 30q and vct5a. I assume that when you press the fire button it is firing at the volts the battery is showing i.e 4v

 

[Matt.]

Yep... all noted thanks... I think dry firing on the mod is easier and definitely quicker... it takes ages to warm up on the meter pulse firing of course. That’ll be those clapton N80 wires I’ve been playing with, even to just get warm, mildly red, pulse firing on the meter takes forever...