Coil Master 521 Tab Mini -- Another POS

Discussion in 'General Rebuildable Discussion (RTA/RBA/RDA)' started by PhantomOp, Jan 9, 2017.

  1. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    --- Just Venting ---

    This is now the second Coil Master 521 Tab that I have purchase. The first one was the full version (non mini), and the newest release. That unit would not accuratly read the ohms of coils on multiple different decks.
    So -- I sent it back to Amazon and got a refund.

    I ended up purchasing another Coil Master 521 Tab (mini) from Amazon as it was only $18.95. I figured, I had gotten a junk unit as multiple other members here had the CM tabs and have had NO issues with them.

    Well -- another Coil Master 521 tab is now being returned to Amazon. IMO -- They are a pile of :poop:

     
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  2. ej1024

    ej1024 VU Donator Diamond Contributor Member For 3 Years

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    Oh no


     
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  3. gtrpickr

    gtrpickr Silver Contributor Member For 3 Years ECF Refugee

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    I guess I got lucky, I just got a CM mini from lightning vapes and mine seems to be working good
     
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  4. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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  5. The Cromwell

    The Cromwell The Frugal Vapist VU Donator Diamond Contributor Member For 2 Years

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    Just use my regulated mods for ohms or get out the Fluke DMM if really low build.
     
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  6. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    That is what I was doing, using my RX200S.
     
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  7. The Cromwell

    The Cromwell The Frugal Vapist VU Donator Diamond Contributor Member For 2 Years

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    If you have a DNA mod they do good ohms readings.
     
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  8. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    Unfortunately I do not. Haven't been able to justify the cost of them yet. Since October has been two Alien kits and my RX200S, and two PICO 75w. (as you can see the upgrade process) :D
     
  9. The Cromwell

    The Cromwell The Frugal Vapist VU Donator Diamond Contributor Member For 2 Years

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    I have no desire for one too fiddly for me. And I am a techno dweeb. But I like my vaping equipment pretty simple to operate.
     
  10. li_vaper21

    li_vaper21 Bronze Contributor Member For 1 Year

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    maybe its your battery?
     
  11. SirRichardRear

    SirRichardRear AKA Anthony Vapes on Youtube VU Donator Diamond Contributor Member For 1 Year Reviewer

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    that's odd. I have 2 of the full size and they both work perfect. best investment i ever made.
     
  12. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    I have the Geekvape Mini Tab now and it works flawless.

    Sent from my XT1650 using Tapatalk
     
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  13. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    I agree with you, and I know many others have not had issues with them... However, they seem to have issues with me. Two different models of the CM now have gone back.

    Sent from my XT1650 using Tapatalk
     
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  14. SirRichardRear

    SirRichardRear AKA Anthony Vapes on Youtube VU Donator Diamond Contributor Member For 1 Year Reviewer

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    geekvape or USAohm meters are other options. maybe you'll have better luck
     
  15. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    Got the Geekvape last weekend. So far so good. No jumping ohm readings and are very close to readings on my other mods (within .01 and .05ohm difference).

    Sent from my XT1650 using Tapatalk
     
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  16. SirRichardRear

    SirRichardRear AKA Anthony Vapes on Youtube VU Donator Diamond Contributor Member For 1 Year Reviewer

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    nice!
    my main reason for wanting the CM one (and not the mini) was it's useful for mechs and hybrids. you can test voltage drop and be able to read resistance of hybrids that don't have 510 pins
     
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  17. Rabbit Slayer

    Rabbit Slayer Silver Contributor Member For 1 Year ECF Refugee

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    Maybe try one from a real vape shop and not amazon, while I trust them for most things, vape gear is not one
     
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  18. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    I was starting to think that also.

    Sent from my XT1650 using Tapatalk
     
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  19. wheelie

    wheelie VU Donator Bronze Contributor Member For 2 Years

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    Mine 521 Tab works great. love mine. I had a friend that could never wear a watch, it would stop when on his arm, on a table work forever, I wore it for a month and worked fine, he would put it on and time would stand still. How is the electric magnet field in your body? LOL
     
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  20. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    Well, I would have to say that I have the exact SAME issue. I can't wear a watch either. My mother was the same way, she can't wear a watch.
     
    Last edited: Jan 31, 2017
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  21. li_vaper21

    li_vaper21 Bronze Contributor Member For 1 Year

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    maybe just a dud
     
  22. Mikhail Naumov

    Mikhail Naumov VU Donator Gold Contributor Member For 1 Year ECF Refugee Unlisted Vendor

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    I have a Geekvape 521 tab (I never use) and it works pretty damned well. Never used the CM though.
     
  23. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    Yup, my Geekvape 521 has been flawless since I got it. I will end getting one of the USA made ones next.

    Sent from my XT1650 using Tapatalk
     
  24. Mikhail Naumov

    Mikhail Naumov VU Donator Gold Contributor Member For 1 Year ECF Refugee Unlisted Vendor

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    For what it's worth I know of plenty of people and vape shops alike who rely regularly on the Coil Master 521 with zero reported issues. So you may have just gotten the short straw, twice.
     
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  25. Iliketurtles

    Iliketurtles Silver Contributor Member For 3 Years

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    The switch in the coilmaster is poop. You can fix it by bending the leg a little and it will make proper contact, must be something they do in manufacturing that it doesn't like. Mine was the same and I was going to replace the switch so I thought I may as well try messing with it and it fixed the issue. It's the post on the outside of the switch, just tweak it a little outwards and it's done. You can test it beforehand by shorting either outside pin to the centre pin to see it is stable, if its not you will need to replace the switch.

    [​IMG]
    Undo screws.
    [​IMG]
    Take out the mess.
    [​IMG]
    Fiddle with the switch post.
     
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  26. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    Very nice, thank you for posting this.


    Sent from my XT1650 using Tapatalk
     
  27. mero16

    mero16 Member For 3 Years

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    ive had 2 full cm521s and the first one crapped after 8months, sent it back, got my refund. went and purchased a new one from another vender. that one crapped out doesnt read ohms correctly december2016. during all this time i still used my geekvape 521 mini on and off. now its my goto tab. thinking of picking up another one as my back up. i will never buy another Coil master 521 full, its not worth the hassle or the price.
     
  28. The Cromwell

    The Cromwell The Frugal Vapist VU Donator Diamond Contributor Member For 2 Years

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    i just use a mod.
     
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  29. Mikhail Naumov

    Mikhail Naumov VU Donator Gold Contributor Member For 1 Year ECF Refugee Unlisted Vendor

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    Seriously, the ohm readers on most regulated devices (the best being DNA's and SX's) have gotten pretty damned accurate, especially the DNA's. Also the coil tabs don't pack nearly enough power to pulse up huge, thick wire coils. Because of this, my Geekvape 521 tab never gets used.
     
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  30. PhantomOp

    PhantomOp VU Donator Gold Contributor Member For 1 Year

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    I've also started using my Hohm Wrecker instead of my mini tab

    Sent from my XT1650 using Tapatalk
     
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  31. Blue Horse

    Blue Horse Member For 2 Years

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    If you really want to read low Ohms accurately, You need a 4 wire Ohm-meter... I'd question how accurate your 2 wire Fluke is....
     
  32. The Cromwell

    The Cromwell The Frugal Vapist VU Donator Diamond Contributor Member For 2 Years

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    yes for sub.1 ohms you need a milliohm meter, Kelvin clips and all.
    My Fluke reads .1 accurately and I never go below .2 so I am good.
    I have dovpo mod and a couple of Smok mods that read off the rest are within .1 of dead on.
    So fine for me.
     
  33. JuicyLucy

    JuicyLucy My name is Lucy and I am a squonkaholic VU Donator Diamond Contributor Member For 2 Years ECF Refugee

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    I do too

    When I first posted about building my first coil at Brand X forum, it caused a huge heated argument, whether to buy a reader or use the mod

    Yeah, I just use a mod. If I question the reading (rare) or want to be extra, extra sure it is accurate, I just test it on a different mod also, lol
     
  34. ShowerHead

    ShowerHead Silver Contributor Member For 2 Years ECF Refugee

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    The reading on mine is and has been accurate.
    I mainly use it for the stability though.
    Around here, if it can be knocked over, it will be.
    So, the 521. Provides a nice build stand and has the bonus ability to read resistance.
    Since I do only TC, that isn't such a big deal either. Mainly stability. Guess I could have bought a 510 and mounted to a rock...
     
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  35. thewarm

    thewarm Member For 3 Years

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    Crank that "MegOhmeter"... Used to test electric motors.
     
  36. benley73

    benley73 Silver Contributor Member For 2 Years

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    You can pick up some dna 75s for quite low prices , I've even come across a small dna 75c for 50£

    Sent from my ONEPLUS A3003 using Tapatalk
     
  37. CactusFanaticus

    CactusFanaticus Silver Contributor

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    Had a shop teacher that made me hold each lead and cranked that thing while laughing until I couldn't let go balled up on the ground lol
     

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