Provari can't do 6 volts with single coil 3.0 ohm cartomizer?

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bgoracy

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Hello All,

This is my first post on this forum. About a week ago, I received my new provari with the extender cap and 2 18650 2000 mAh batterries sold by Provape. I eagerly put everything together and used a volcanocigs single coil 3.0 ohm cartomizer with a 6ml tank from TW. This worked great for about an hour, then I started receiving E1 errors after every vape. Prior to getting the Provari, I was using this same setup on the TW Torpedo (aka Lavatube) and always had the voltage at 6 volts. This worked without flaw for about a year. I do not have a voltage meter, but based on the vapor production, I would say that the Lavatube was not self regulating at all. I would test this by manually lowering the voltage to 3.8 and seeing the wimpy vapor production, then comparing that to 6 volts which always had great vapor production.

Based on the stats below, I do not see why the Provari would be showing E1 errors...

6 volts with a single coil 3.0 ohms cartomizer = 2 AMPS
Provari specified AMP limit = 3.5 AMPS

6 volts with a single coil 3.0 ohm cartomizer = 12 watts
Provari specified Watt limit = 14.5 Watts

I tried to use several different single coil 3.0 ohms cartomizers from TW, Healthcabin, and madvapes. All tests resulted in E1 errors. I also tried screwing the cartomizer on everywhere from very loose to very tight. Same E1 errors. I then contacted Provape by email and went through this explanation with them. I was told that as you use a cartomizer, it heats up and the resistance drops. This causes it to go over the AMP limits. My question to everyone is, is this actually true, and is there anyone out there that uses a Provario with a single coil 3.0 ohms cartomizer at 6 volts and does not get any errors?

Thanks All!


The response from Provape below...

Hi Brian,

But it’s not actually staying at 3ohms. As the cartomizer and atomizer heat up they rapidly drop resistance. So as you press the button the resistance is going to drop and it can drop from 3ohms down to 2.5 or less while its heating. The amount of resistance drop is also affected by the amount of fluid left. The fluid acts as a coolant for the heating coil, so the less fluid the faster the drop.

Note the data in that article: The maximum power output is best calculated by measuring the output current and voltage. It is difficult to base an output power measurement on an output load resistor unless the load resistor is a calibrated shunt. Most resistors change significantly with temperature. This is particularly true of atomizers!

The Lavatube works a little different. It will lower its voltage without you knowing as the resistance drops so you stay within their amperage limit, and this is how they handle their amperage limit. So you are not actually getting a steady 6 volts with the Lava. It will drop voltage and you won’t be aware of it as there is no indication on that device that its lowering the voltage for you.

The ProVari is “you get what you set”, we don’t go in and allow the unit to drop its voltage, but if it cannot push what you request, it displays a E1.

I would suggest lowering the voltage to allow the resistance to drop in your atomizer. This has nothing to do with the device not working properly.

Sorry I missed this one. This is how the pins are made, so it’s by design that it has some solder on the head pin.


If we exchange your device you are going to get the same results as what I am telling you as this is about the resistance drop and Ohm’s Law and we cannot change that its working by design.

There are many online studies comparing the Lava and the ProVari and the ProVari is much more powerful and will hold its power over the life of the battery whereas the Lava will rapidly drop as your batteries surface charge runs down, but both devices have a limit.

If you are not happy with the ProVari you can certainly return it for a refund.

Knowing how much testing each device goes through here and everything you have told me so far, I have not heard anything that sounds out of whack.


Kindly,
David
 

Hottody

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Sounds like David at Provape had the correct explanation for you! Enjoy your Provari, it is one of the BEST devices available! Adjust your voltage slightly to accommodate your carto and enjoy! The Provari is more precise than your cartos, so continue vaping your sweet Provari! I have a Provari and to answer your question, everything David and Provape says is true based on my experience and understanding! ENJOY! ;)
 

DCB305

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But it’s not actually staying at 3ohms. As the cartomizer and atomizer heat up they rapidly drop resistance. So as you press the button the resistance is going to drop and it can drop from 3ohms down to 2.5 or less while its heating. The amount of resistance drop is also affected by the amount of fluid left. The fluid acts as a coolant for the heating coil, so the less fluid the faster the drop.

Note the data in that article: The maximum power output is best calculated by measuring the output current and voltage. It is difficult to base an output power measurement on an output load resistor unless the load resistor is a calibrated shunt. Most resistors change significantly with temperature. This is particularly true of atomizers!

The Lavatube works a little different. It will lower its voltage without you knowing as the resistance drops so you stay within their amperage limit, and this is how they handle their amperage limit. So you are not actually getting a steady 6 volts with the Lava. It will drop voltage and you won’t be aware of it as there is no indication on that device that its lowering the voltage for you.

Spot on, I think you have your answer also with the Provari you can check the resistance of a attomizer/cartomizer/clearomizer on the spot by going to you (Ao) setting and wait for the results (I believe it's like 13 clicks to get there). I have also seen reports on the Lavatubes that as you get higher past 5volts on the voltage settings you aren't actually getting what you set and are usually getting less voltage then what you have it set to.
 

bgoracy

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Hello DCB305,

I did use the Provari function to check the resistance on all of the cartomizers and they all measured between 2.9 to 3.1. My understanding on the Lavatube was that when the AMP limit was hit, the voltage would immediately drop to 3.7 or below. Wouldn't this cause a very noticable vapor reduction going from 6 volts to 3.7 volts? I do not ever see any reduction. Just wondering.

Thanks!
 

DCB305

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Hello DCB305,

I did use the Provari function to check the resistance on all of the cartomizers and they all measured between 2.9 to 3.1. My understanding on the Lavatube was that when the AMP limit was hit, the voltage would immediately drop to 3.7 or below. Wouldn't this cause a very noticable vapor reduction going from 6 volts to 3.7 volts? I do not ever see any reduction. Just wondering.

Thanks!

Yeah you should, but the reason you might not be hitting that limit is because your lavatube may not be getting all the way to 6 volts even when you have it set there. The version 1 lavatube are not that accurate above 5 volts and are usually putting out less voltage then what you have it set at above 5 volts. The Provari on the other hand is get what you set. Have you checked the ohm's right after you get that E1 error, as has been mentioned the resistance of the cartomizer/attomizer/ clearomizer will drop when they heat up.
 

elfstone

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To test your theory, I turned my provari V2 up to 6v on a 3ohm boge carto.

It tasted like burned crap.

That's funny - I burned off a carto like that to reply to a similar post a couple of weeks ago.

To get to 3.5 amps at 6v the resistance would have to drop below 1.7ohms.

Not really. As far as I know, there is also a 14.5 wattage limit in the ProVari (http://www.provape.com/v/images/ProVariV1vsV2.pdf). That means that for 6 V, it would only have to drop to 2.48 Ohm, which is quite reasonable for heating.
 

DCB305

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In regards to the lavatube here is a review that shows the actual voltage. It's not a flattering review and IMO the lavatube is of significant value for what it is. Like off topic mentioned the Provari in theory would need to drop under 1.8 ohm resistance for it hit the current limit of 3.5amp. For reference the 3.0ohm at 6 volts is about 12 watts and 2 amps, so you really shouldn't have any issues with the Provari. Check the resistance right after the e1 error and see what you have if it's below 1.8 you are probably hitting that amp limit if it's above 1.8ohm you should be fine unless you have a bad carto or something is wrong with the Provari (based on the math at least). Good luck
 

DCB305

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Hello,

I just checked the ohms rigt after the E1 error and it showed 2.7. It does fire for about a second prior to the error.

Does anyone have any links to any websites that sell 3.5 to 4 ohms cartomizers that will fit in a DCT tank? Does such a thing exist?

Thanks!

FYI its the wattage that get's you the vape your looking for and on a 3.0 ohm carto at 6volts that is 12 watts you can replicate 12 watts with a 2.5ohm carto at 5.5 volts, but regardless the Provari should handle a 3.0 ohm carto at 6 volts no problem unless the carto has a short or something.
 

bgoracy

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Exactly what i thought and stated in the first post...

Based on the stats below, I do not see why the Provari would be showing E1 errors...

6 volts with a single coil 3.0 ohms cartomizer = 2 AMPS
Provari specified AMP limit = 3.5 AMPS

6 volts with a single coil 3.0 ohm cartomizer = 12 watts
Provari specified Watt limit = 14.5 Watts

I tested sveral different carto's from several different vendors all with the E1 errors after an hour.
 

DCB305

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Exactly what i thought and stated in the first post...

Based on the stats below, I do not see why the Provari would be showing E1 errors...

6 volts with a single coil 3.0 ohms cartomizer = 2 AMPS
Provari specified AMP limit = 3.5 AMPS

6 volts with a single coil 3.0 ohm cartomizer = 12 watts
Provari specified Watt limit = 14.5 Watts

I tested sveral different carto's from several different vendors all with the E1 errors after an hour.

At this point then I would get with Provape technical support and try figuring it out with them they will do everything in their power to help you and if it's something with the device they will get it taken care of for you. They stand behind their product. Good luck.
 

Off Topic

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Try turning the device down to 5v and vape. Then bring the power up in .1v increments till you find the breaking point.

Find out what it will do, and do that. If that's not enough heat for you, talk to Hairball.

Hairball vapes in the 30 watt range on mechanical mods. You may have to go to that type of a system.
 

DCB305

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Try turning the device down to 5v and vape. Then bring the power up in .1v increments till you find the breaking point.

Find out what it will do, and do that. If that's not enough heat for you, talk to Hairball.

Hairball vapes in the 30 watt range on mechanical mods. You may have to go to that type of a system.

Yeah his next mod will be a 50 watt incandescent light bulb with a wick! j/k lol.
 
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DCB305

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Hello,

I already contacted Provape support. Their reply is in my first post.

Send them the info you discovered in reply. That you checked the ohms after it happened and it was at 2.7ohm and you also replicated it with various 3.0 cartos from various vendors. Ask if there may be another reason for you problem, battery or what not, and what else they may suggest. Worse case scenario ask for an exchange, repair, or refund.
 
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