YiHi SXmini Mod @ Varitube

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Marc411

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Shipment of Black and Grey with Silver Faces cleared customs. Will be available Monday.

Should I stop waiting for these to show up and just pick up one of the others coming in?

I was going for one of each color and already have these to running Kanthal :)

20150125230105_72474.jpg
 

Vlad1

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@Onedesign1

There's also a lot of talk / concern in the SXmini M Class (TEMP CONTROL) thread regarding a slight buzz when in temperature limiting mode. Someone in the thread has tried to contact Yihi and the vendor who they purchased it from and have heard back from the vendor that the unit they had in house also had the buzz. But no word from Yihi yet. It's slight but apparently some units don't have it while others do. Mine does have this noise. Can you shed light on this or do you have a faster channel to Yihi to get an answer?


So I got a response from Vspot Vapes about the buzzing noise in Joules mode. They said their test unit makes the same exact noise and that they reached out to Yihi and are waiting for a response. They also told me that if I do not feel safe with the device they will do a swap for me. Great customer support. I will be waiting for them or myself to hear an official response from YiHi until I make any moves toward a swap.


Something else you might pass along to Yihi that I'm seeing in the threads is a slight alignment problem with the outer cover. It is very minimal but noticeable. For whatever reason it seems it's always on the right hand side at the top like in this video. https://youtu.be/ae8Y7EQx7mA?t=275 Mine has it but I didn't really notice it for a couple days until another member brought it to our attention. That's how minimal it is.
 
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Onedesign1

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Every unit I have touched and the test boards we have run emitted a buzz in temp mode. We chalked it up to the constant resistance checking thats occurring because its only in Temp mode .... and forgot about it.

I will get an official response from YiHi as soon as possible. I personally do not think its an issue and have been using the chip for months now. Let see what we get back.

@Onedesign1

There's also a lot of talk / concern in the SXmini M Class (TEMP CONTROL) thread regarding a slight buzz when in temperature limiting mode. Someone in the thread has tried to contact Yihi and the vendor who they purchased it from and have heard back from the vendor that the unit they had in house also had the buzz. But no word from Yihi yet. It's slight but apparently some units don't have it while others do. Mine does have this noise. Can you shed light on this or do you have a faster channel to Yihi to get an answer?
 

Onedesign1

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Should I stop waiting for these to show up and just pick up one of the others coming in?

I was going for one of each color and already have these to running Kanthal :)

View attachment 427270

if you want one soon then probably. They have not given up but its clearly not ready yet
 

Vlad1

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Every unit I have touched and the test boards we have run emitted a buzz in temp mode. We chalked it up to the constant resistance checking thats occurring because its only in Temp mode .... and forgot about it.

I will get an official response from YiHi as soon as possible. I personally do not think its an issue and have been using the chip for months now. Let see what we get back.

Thanks. I'm not overly concerned about it either it's just when there are reports that some are doing it and others are not it raises some questions. I suspect the ones that report they don't just don't hear it.
 

Onedesign1

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If it hasn't been yet this should be posted around today:

Statement Regarding slight Buzzing noise in Joule mode:

Under the Joule mode, the chip is constantly controlling the temperature and making adjustments to maintain the setting. As a result, there may be a slight hum or buzzing while it is working, this is normal, Please do not worry about it.

Because the technology of M Class is the newest, and supports lower sub-ohm resistance, we suggest a 0.06-0.12 ohm base on Temco Ni-200. You can get the perfect experinces when you build the atomizer with the resistance 0.06ohm. However, if using the resistance above 0.3 ohm or Khanthal atomizers there will be variance and some unexpected behaviors may be observed in Joule mode.
 

Vlad1

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If it hasn't been yet this should be posted around today:

Statement Regarding slight Buzzing noise in Joule mode:

Under the Joule mode, the chip is constantly controlling the temperature and making adjustments to maintain the setting. As a result, there may be a slight hum or buzzing while it is working, this is normal, Please do not worry about it.

Because the technology of M Class is the newest, and supports lower sub-ohm resistance, we suggest a 0.06-0.12 ohm base on Temco Ni-200. You can get the perfect experinces when you build the atomizer with the resistance 0.06ohm. However, if using the resistance above 0.3 ohm or Khanthal atomizers there will be variance and some unexpected behaviors may be observed in Joule mode.

Thanks,

Yea a couple folks received emails back from Yihi yesterday and posted their response. I don't quite understand the statement about using "0.3 ohm or Khanthal atomizers there will be variance and some unexpected behaviors may be observed in Joule mode" I mean who's gonna use kanthal in joule mode? lol But I'll link to this thread in the other one.
 

Onedesign1

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Thanks,

Yea a couple folks received emails back from Yihi yesterday and posted their response. I don't quite understand the statement about using "0.3 ohm or Khanthal atomizers there will be variance and some unexpected behaviors may be observed in Joule mode" I mean who's gonna use kanthal in joule mode? lol But I'll link to this thread in the other one.

People do all sorts of crazy things.....weren't you just yesterday trying to gently tell somebody they need to know what they're doing :)
 

peraspera

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If it hasn't been yet this should be posted around today:

Statement Regarding slight Buzzing noise in Joule mode:

Under the Joule mode, the chip is constantly controlling the temperature and making adjustments to maintain the setting. As a result, there may be a slight hum or buzzing while it is working, this is normal, Please do not worry about it.

Because the technology of M Class is the newest, and supports lower sub-ohm resistance, we suggest a 0.06-0.12 ohm base on Temco Ni-200. You can get the perfect experinces when you build the atomizer with the resistance 0.06ohm. However, if using the resistance above 0.3 ohm or Khanthal atomizers there will be variance and some unexpected behaviors may be observed in Joule mode.

Thanks very much for posting this info. I was pulling out my hair trying to figure out why I was seeing inconsistent temps. I'll try some lower oHm builds to see if that works better.

I'm also very happy to hear that the hum doesn't indicate anything of concern. :)
 

Vlad1

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People do all sorts of crazy things.....weren't you just yesterday trying to gently tell somebody they need to know what they're doing :)

I guess they do.

But me gentle??? Telling someone they need to know what they're doing???? Links/pics or it didn't happen :) I honestly don't know what your referencing.... lol
 

Kevinn

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Just purchased the SX Mini M class from Varitube, as well as a couple of batteries and extension tube. This will be my first temp limiting device.

With kanthal coils, I can clean them by burning them red hot, them immediately running them under cold water.

Question is, can you do this with nickel wire? From what I understand, nickel wire is softer, and I assume it's more prone to deformation when red hot. Can you switch to variable wattage mode and achieve the same thing with nickel without ruining the coil? I can Vape a kanthal coil for months by cleaning it, would like to do the same for nickel.

Here's a video from Rip Trippers explaining how to clean a kanthal coil

 
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