2 heads ruined cause VAMO is not reading the correct ohm

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tntmux

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Jun 7, 2013
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Hello, got my vamo v2 yesterday, nice battery except one thing bothers me.
The ohm reading of my vamo is always a little higher than the correct value, for example, it reads 2.0 for my 1.8ohm kanger t2, 2.0-2.1 for my 1.8 evod, 3.0-6.4 for my 2.5 DCT tank(the more I screw it down, the lower ohm it reads). Since I use VW mode ((8-9W)), it fired at a higher voltage than it should be so I got 2 kanger t2 head ruined (burn taste). Now I changed to VV mode so I can control it and this works fine. I used to think that with a vv/vw mode I can pull out more vapor than standard bettery, well, this is true except it burns my coil head...:glare:

Is this a common issue on vamo? (I use 18650 setup)

One tip for new vamo user: If you are under VW mode, check ohm reader everytime when you change a head, otherwise your coil head might burn!!
 
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Sector000

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Mar 6, 2013
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The ohm reading of my vamo is always a little higher than the correct value, for example, it reads 2.0 for my 1.8ohm kanger t2, 2.0-2.1 for my 1.8 evod, 3.0-6.4 for my 2.5 DCT tank(the more I screw it down, the lower ohm read is).
Sounds like dirty/loose contacts contributed to the higher reading.

Mine is usually dead on, and sometimes 0.1Ω too high.

One tip for new vamo user: If you are under VW mode, check ohm reader everytime whn you change a head, otherwise you coil head might burn!!
Do you mean using an external multimeter?
 

kiwivap

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Jul 14, 2012
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Hello, got my vamo v2 yesterday, nice battery except one thing bothers me.
The ohm reading of my vamo is always a little higher than the correct value, for example, it reads 2.0 for my 1.8ohm kanger t2, 2.0-2.1 for my 1.8 evod, 3.0-6.4 for my 2.5 DCT tank(the more I screw it down, the lower ohm read is). Since I use VW mode ((8-9W)), it fired at a higher voltage than it should be so I got 2 kanger t2 head ruined (burn taste). Now I changed to VV mode so I can control it and this works fine. I used to think that with a vv/vw mode I can pull out more vapor than standard bettery, well, this is true except it burns my coil head...:glare:

Is this a common issue on vamo? (I use 18650 setup)

One tip for new vamo user: If you are under VW mode, check ohm reader everytime whn you change a head, otherwise you coil head might burn!!

Actually no, this is not a common issue. A Vamo user doesn't need to keep checking ohms when using the device every time.
Firstly - the stated ohms on factory heads can differ by +/- 0.2 or thereabouts, and often do. So if you have a coil that say 2.0 ohms, it may be 1.8 ohms or 2.2 ohms. The best way to check is to check the ohms on a multimeter and then compare with the Vamo. I've done this and found the Vamo was giving the correct ohms reading.
Secondly - even the difference you describe shouldn't cause burning coil heads.

Have you... put the Vamo into NO 2 mode, which is the accurate RMS mode? You do that by holding down one of the small buttons until it shows NO 2.
If it shows NO 1 it is in average mode and will be firing harder than the displayed setting.

Also - start at a lower watts and work your way up. And, the Vamo calculates ohms and adjusts the voltage to give the desired watts. Even with the ohms differences you've mentioned that shouldn't ruin heads.
 

tntmux

Senior Member
ECF Veteran
Jun 7, 2013
248
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paris
Actually no, this is not a common issue. A Vamo user doesn't need to keep checking ohms when using the device every time.
Firstly - the stated ohms on factory heads can differ by +/- 0.2 or thereabouts, and often do. So if you have a coil that say 2.0 ohms, it may be 1.8 ohms or 2.2 ohms. The best way to check is to check the ohms on a multimeter and then compare with the Vamo. I've done this and found the Vamo was giving the correct ohms reading.
Secondly - even the difference you describe shouldn't cause burning coil heads.

Have you... put the Vamo into NO 2 mode, which is the accurate RMS mode? You do that by holding down one of the small buttons until it shows NO 2.
If it shows NO 1 it is in average mode and will be firing harder than the displayed setting.

Also - start at a lower watts and work your way up. And, the Vamo calculates ohms and adjusts the voltage to give the desired watts. Even with the ohms differences you've mentioned that shouldn't ruin heads.

Thanks for your advise, I am very sure that I set my vamo to mode RMS (N002).
Another thing that I am very careful with is not to screw the head too deep cause it has been pointed out many times that the center part of vamo could be pushed into the body and that will bring 9.9ohm error. The problem is if we dont push the clearomizer deep enough to make a good contact, vamo might read a very high ohm and under VW mode it will fire at high voltage, it happened to my DCT, it 1st read is 6.4ohm, I didn't know and I got immediate burn taste, then I checked the ohm value and omfg it was 6.4...I screwed it a little harder and deeper, then it reads 3.0ohm. This is why I suggest people to read the ohm on their vamo before firing. Because that is the value that vamo is going to use in order to decide at which voltage it would adjust to.

Anyway I dont trust VW mode anymore and I use VV mode, 3.6V for my 1.8ohm heads is fine.
 

kiwivap

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Jul 14, 2012
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Thanks for your advise, I am very sure that I set my vamo to mode RMS (N002).
Another thing that I am very careful with is not to screw the head too deep cause it has been pointed out many times that the center part of vamo could be pushed into the body and that will bring 9.9ohm error. The problem is if we dont push the clearomizer deep enough to make a good contact, vamo might read a very high ohm and under VW mode it will fire at high voltage, it happened to my DCT, it 1st read is 6.4ohm, I didn't know and I got immediate burn taste, then I checked the ohm value and omfg it was 6.4...I screwed it a little harder and deeper, then it reads 3.0ohm. This is why I suggest people to read the ohm on their vamo before firing. Because that is the value that vamo is going to use in order to decide at which voltage it would adjust to.

Anyway I dont trust VW mode anymore and I use VV mode, 3.6V for my 1.8ohm heads is fine.

I've seen a couple of posts from you and I think you need to learn more about your pv. Its good not to jam attachments on too tight, but you do need to screw them down properly. So the reading is a not a flaw with the Vamo - but that you didn't screw the attachment in far enough.
I've been using Vamos heavily for over 6 months. A Vamo user doesn't need to check ohms all the time. The VW mode is the one I and many others use.
I suggest you spend more time learning about the Vamo before concluding about how people should use them.
A user manual is here:
http://www.e-cigarette-forum.com/forum/vamo/359600-vamo-vv-vw-v2-user-manual-download.html
 

tntmux

Senior Member
ECF Veteran
Jun 7, 2013
248
180
paris
I've seen a couple of posts from you and I think you need to learn more about your pv. Its good not to jam attachments on too tight, but you do need to screw them down properly. So the reading is a not a flaw with the Vamo - but that you didn't screw the attachment in far enough.
I've been using Vamos heavily for over 6 months. A Vamo user doesn't need to check ohms all the time. The VW mode is the one I and many others use.
I suggest you spend more time learning about the Vamo before concluding about how people should use them.
A user manual is here:
http://www.e-cigarette-forum.com/forum/vamo/359600-vamo-vv-vw-v2-user-manual-download.html

Thanks, I am going to learn that. Yes I admit that I am very new to ecig and vv/vw mod. A lot of stuff to learn :)
 
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