200W Asolo TC Box Mod by Heaven Gifts

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TheBloke

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Thanks very much @Vera ! This mod makes an extremely interesting claim so it's going to be fascinating to see how well it works.

@USMCotaku you have a head start on me in shipping, I didn't get my address to Vera until gone 6pm their time so mine won't ship until tomorrow. So you might have a head start on me on the testing :) Well, unless DHL reaches UK a day quicker than US :)

I've had something DHL'd from China once before and it took four days, Saturday to Tuesday. I don't know if that was affected by it leaving over a weekend or not.
 

Bikenstein

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Thumbs up guys. I look forward to your reviews. Especially yours, Bloke with the O-scope. I'm curious to see how this thing does. My biggest curiosity is kanthal has such a low TCR I can't see how it determines the juice is low. Enjoy your new toys :)
 
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TheBloke

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Thumbs up guys. I look forward to your reviews. Especially yours, Bloke with the O-scope. I'm curious to see how this thing does. My biggest curiosity is kanthal has such a low TCR I can't see how it determines the juice is low. Enjoy your new toys :)

Yes indeed, this is what I am most interested to find out. I have been fairly comfortable in saying that it's going to be impossible to use resistance based measurement to do any kind of accurate TC with Kanthal - the hardware required would be too expensive, and the resulting vape too inaccurate. Then again, it doesn't claim to do temp limiting with Kanthal. It just says it detects low juice.

A Kanthal coil of 1.0Ω will rise to 1.01Ω by 500°C. By 300°C I expect it will rise by at most 0.005Ω. That amount of rise is detectable. The trouble is, for a 0.50Ω coil the rise would only be 0.0025Ω, and for a 0.25Ω coil it would be 0.00125Ω. A milli-ohm mod could certainly pick up a change of 0.001Ω, but will the atomizer/coil be so stable as to rise by that amount only when its temperature rises? The slightest knock of the atomizer can adjust its attachment by enough to change its resistance by 0.001Ω; just the difference between it being screwed on "really tight" and "even more really tight" can be several, even tens of milli-oms. For normal TC that doesn't matter, but for this it would completely kill it.

So maybe it doesn't do it that way. You have to 'choose preferred flavour' or whatever they call it, and that must be the key. What the key unlocks though, I have no idea :) Looking forward to trying to find out.
 

thedeval

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Yes indeed, this is what I am most interested to find out. I have been fairly comfortable in saying that it's going to be impossible to use resistance based measurement to do any kind of accurate TC with Kanthal - the hardware required would be too expensive, and the resulting vape too inaccurate. Then again, it doesn't claim to do temp limiting with Kanthal. It just says it detects low juice.

A Kanthal coil of 1.0Ω will rise to 1.01Ω by 500°C. By 300°C I expect it will rise by at most 0.005Ω. That amount of rise is detectable. The trouble is, for a 0.50Ω coil the rise would only be 0.0025Ω, and for a 0.25Ω coil it would be 0.00125Ω. A milli-ohm mod could certainly pick up a change of 0.001Ω, but will the atomizer/coil be so stable as to rise by that amount only when its temperature rises? The slightest knock of the atomizer can adjust its attachment by enough to change its resistance by 0.001Ω; just the difference between it being screwed on "really tight" and "even more really tight" can be several, even tens of milli-oms. For normal TC that doesn't matter, but for this it would completely kill it.

So maybe it doesn't do it that way. You have to 'choose preferred flavour' or whatever they call it, and that must be the key. What the key unlocks though, I have no idea :) Looking forward to trying to find out.

please do not lock your focus to just "resistance".... I "think" I can hear a little noise being generated when I take a hit... and I don't mean the normal noise/sound of the coil heating up the juice or the sound of air being pulled through the tank/rba...

when you get it... you should keep an ear out for this "regulated frequency"... I am betting this is actually the "Key" to it all?
 
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TheBloke

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please do not lock your focus to just "resistance".... I "think" I can hear a little noise being generated when I take a hit... and I don't mean the normal noise/sound of the coil heating up the juice or the sound of air being pulled through the tank/rba...

when you get it... you should keep an ear out for this "regulated frequency"... I am betting this is actually the "Key" to it all?

Well I have an oscilloscope so I will definitely be probing for what DC power it sends out. But you are talking about a noise generated inside the mod itself?

Being a 200W device with only two batteries it's certain that it uses Pulse Width Modulation. With PWM mods some people report being able to hear a sound a bit like a rattlesnake. A sort of rattling hissing. Is it possible that that is what you are hearing?

Anyway what is certain is that it connects to the atomizer only via the usual two-wire 510 connection. So anything it does/sends/receives must be on those wires and I should pick it up with the oscilloscope.
 
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Bikenstein

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Yes indeed, this is what I am most interested to find out. I have been fairly comfortable in saying that it's going to be impossible to use resistance based measurement to do any kind of accurate TC with Kanthal - the hardware required would be too expensive, and the resulting vape too inaccurate. Then again, it doesn't claim to do temp limiting with Kanthal. It just says it detects low juice.

A Kanthal coil of 1.0Ω will rise to 1.01Ω by 500°C. By 300°C I expect it will rise by at most 0.005Ω. That amount of rise is detectable. The trouble is, for a 0.50Ω coil the rise would only be 0.0025Ω, and for a 0.25Ω coil it would be 0.00125Ω. A milli-ohm mod could certainly pick up a change of 0.001Ω, but will the atomizer/coil be so stable as to rise by that amount only when its temperature rises? The slightest knock of the atomizer can adjust its attachment by enough to change its resistance by 0.001Ω; just the difference between it being screwed on "really tight" and "even more really tight" can be several, even tens of milli-oms. For normal TC that doesn't matter, but for this it would completely kill it.

So maybe it doesn't do it that way. You have to 'choose preferred flavour' or whatever they call it, and that must be the key. What the key unlocks though, I have no idea :) Looking forward to trying to find out.
I just see kanthal as being too stable to provide enough change to signal the mod to do anything. But if it's working like they say, it's capable of seein some kind of flux change or somethin through that 510 connector. :)
 
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