Protank head rebuild: meter says OK, MVP says NON

[bobrob]

I've been working on rebuilding heads for my protank 2's. I've been able to build quite a few, and they work pretty well.

However, my heads are very hit and miss. I usually have to build 4 or 5 before I get one that is recognized by my MVP. On almost all of them my meter (a tobeco 510 ohm meter) always says the heads are OK and around the resistance that I was aiming for. But my MVP will often read these heads as a "NON". About 1 out of 5 will read with resistance that I was expecting (and they work well in the protanks)

Is the MVP just too picky? Is there a trick to getting them to work on the MVP?

 

[drummerskey]

You likely aren't making contact with the battery post.

You could take something to lift up the battery post on the MVP, slowly but if you raise it........it should make contact and then work more often. Also, do not over-tighten your toppers on the MVP, just enough to make contact so it doesn't push it back down.

 

[twgbonehead]

The center-pin on the MVP is a bit low. I almost always use a 510->ego adapter on it, which seems to fix the problem:

https://www.fasttech.com/p/1473305


Also make sure the coil assembly is screwed in tightly (and didn't loosen when you put the head on).

 

[JBL-37]

The MVP has a limit on what it can fire. What resistance are you shooting for? Could also be your center pin isn't making contact with the atty. I'm not familiar with the MVP, does the center pin move at all?

 

[JBL-37]

Oops, slow fingers this am... Hope you get it figured out!

 

[Bunnykiller]

usualy when a "non" shows up it means either the coil in the atty isn't connected or the +pin isn't making contact with the +pin of the mod/battery

 

[CountBoredom]

You may find this helpful: http://www.e-cigarette-forum.com/forum/variable-voltage-apv-discussion/559634-fixing-mvp-vv3-contact-issue-guide.html

 

[bobrob]

Awesome. Based on the feedback here, I ran a little test. I had been testing my heads with an old PT2 base as the 510 connection. A head I made this morning read NON on the MVP.

I took the head out of the base and put it into a Kanger Airflow Control Base (which has a different connection point at the post... the head connects to the valve but only the valve connects to the MVP post.. so a "control" in the experiment).

Bingo... 2.1 ohms, same head, only changing the base. So the head was good, but not making the pin connection alright. I never use normal PT2 bases anymore anyway, so I'm OK testing with the Airflow base (as that is what all my PT2's have on them anyway).

 

[FACE MEAT]

Watch this:

https://www.youtube.com/watch?v=XIx9QRgggYM