What exactly does the Ohm checker do?

[Mateo the Great]

Hello Vapers,

Please forgive my ignorance, I am currently using the iTaste VV 3.0 device with an iClear30B. When I hit both the + and the - it tells me A2.0 and then changes over to V3.9.

I cannot figure out what is the main purpose of this. Does that automatically set the volts to 3.9v to create the best vape or does it mean that I should vape at 3.9v for the best vape? Thank you for helping.

 

[spaceballsrules]

The first reading (A2.0) is the resistance of the coil, which in this case is 2.0 ohms. The VV3 will use this reading to calculate the working voltage output to meet your desired wattage setting.

The second reading is the voltage of the battery, or the charge. When it is fully charged, it will read 4.1-4.2. When it is about to automatically shutdown, it will read 3.5-3.6. This has nothing to do with your working vaping voltage setting.

 

[Mateo the Great]

ok, so is there no real purpose for the ohm reader? besides just telling you what ohm your coil is even though you can read it on the side of the coil itself?

 

[Wow1420]

Because of variations in manufacturing, the resistance marked on the coils may not be entirely accurate. If the MVP readout differs, I'd believe the MVP vs. what's printed on the coil body.

 

[spaceballsrules]

ok, so is there no real purpose for the ohm reader? besides just telling you what ohm your coil is even though you can read it on the side of the coil itself?

It's good information to have if you are using the voltage setting, so you know what your starting point is. The vaping experience changes with coils of different resistance. If you are using 2.0 ohm coils, they will provide a warmer vape than coils that measure 2.6 ohms at the same voltage setting.

A lot of factory coils have a variance, so just because it says 1.8/2.0/2,5/etc. on the actual coil, the true resistance may vary from that, sometimes significantly. For example, I have yet to come across a Kanger coil rated at 1.8 ohm to actually be 1.8 ohm. They always measure 2.0-2.1 ohms. That's a 16.67% margin of error!

It's also nice if you rebuild coils. No need to get a separate ohm meter or multimeter, except to double check.

Lastly, as coils get gunked up or age, the resistance actually increases, so you can monitor the coil life.

The built in ohm meter certainly has its uses, but if you personally don't use it for anything, it just becomes a "better to have it and not need it than need it and not have it" situation.

 

[Mateo the Great]

Gotcha.

Thanks for the help.