The Vamo V3 Does Have RMS/AVG Setting

[EBates]

FYI, I own 2 Vamo v3's and understood that the NO1(AVG)/NO2(RMS) setting was no longer part of the V3. Wrong! Hold the left button (-) for 10 seconds to switch to RMS or AVG.
I was pretty unhappy with mine until I discovered it was running in AVG mode. After switching to RMS works great.

 

[pianman6954]

Picture? Not to say I don't believe yah, but doesn't do that on mine.

 

[RaceGun59]

Mine doesn't have the option to change either. if you hold the - down is shows battery voltage. I've got stacked 18350s maybe I better wait to pass final judgement until I can put a 18650 in it and see. The owner's manual doesn't show it either.

 

[EBates]

I agree that you will see the battery voltage while holding the left (-) button down after approx 3 sec. Continue holding the button and it will display Output Mean/Output RMS after approx 10 sec. Output RMS is the correct setting.
I also agree that the documentation and various forums I've read discussing the V3 have not mentioned it, but believe me mine do,

 

[Dan Knight]

I agree that you will see the battery voltage while holding the left (-) button down after approx 3 sec. Continue holding the button and it will display Output Mean/Output RMS after approx 10 sec. Output RMS is the correct setting.
I also agree that the documentation and various forums I've read discussing the V3 have not mentioned it, but believe me mine do,

Yeah, you have to hold it for quite a while, but it is there. If it shows 'Output Mean', do it again and it will switch to RMS.

 

[Glenn_K]

Greetings; It looks like some V3s can be changed between RMS and AVG, and some can't. Like RaceGun59, I've tried holding down the minus button for over 10 seconds, with both types of batteries, and my V3 just continues to show battery voltage level. Probably two different versions of the V3 circuit board.

Regards
Glenn

 

[Vapoor eyes er]

Also held my - button down for 40 secs and only voltage, Tried this 3 times. Also tried with the + button and only showed ohms. Guessing that possibly/ maybe your buttons/ pcb may be going a little wonky. I know one of the issues with the Vamo is stuck buttons- sometimes permanent and sometimes occasionally.

 

[EBates]

So far of 4 Vamo V3 sampled all 4 have had the option "Output Mean/Output RMS". That said all but one have come from fasttech. So, I don't know what that means.
I guess "Your results may vary" applies to vaping as well

 

[Thrasher]

So far of 4 Vamo V3 sampled all 4 have had the option "Output Mean/Output RMS". That said all but one have come from Fasttech. So, I don't know what that means.
I guess "Your results may vary" applies to vaping as well

it would end up being "who's" version of the vamo did you get i believe as they are made by several companies so who know what version really has what board.

 

[EBates]

I agree, Vamo's don't have a serial#, lot#, or version# so, short of a DPA (Distructive Physical Analysis) we'll never know.
Thanks for allowing me to "contribute" to the forum.

 

[RaceGun59]

Might be that they are made by so many differant companies. My kit came with a long tube, short tube, two 18350 ICR 900 mAh batteries and wackie charger with "flip up" prongs on the back. Oh, and an instruction manual. Make no differance with single 18650 or stacked 18350 holding the - button only gives you the battery voltage.

 

[WarHawk-AVG]

Greetings; It looks like some V3s can be changed between RMS and AVG, and some can't. Like RaceGun59, I've tried holding down the minus button for over 10 seconds, with both types of batteries, and my V3 just continues to show battery voltage level. Probably two different versions of the V3 circuit board.

Regards
Glenn

Maybe the 2nd generation innards from a v5 in a v3 swirly body... (new sales of the V3 vs older models)??

Mine doesn't, but I have had mine almost 4 months now

 

[meanckz]

what's the difference between the 2 values?
what is AVG?
what is RMS?

 

[Ragman131]

As much as I paid for mine it should be an authentic, but who really knows... That being said mine will not switch, I have tried several times to no avail...

 

[WarHawk-AVG]

10 char...wierd...double post

 

[WarHawk-AVG]

what's the difference between the 2 values?
what is AVG?
what is RMS?

Wanna break your brain?
Root mean square - Wikipedia, the free encyclopedia


Vavg is calculated by taking the average of the voltage in an appropriately chosen interval. In the case of symmetrical waveforms like the sinewave, a quarter cycle faithfully represents all four quarter cycles of the waveform.

Vrms is the value indicated by the vast majority of AC voltmeters. It is the value that, when applied across a resistance, produces that same amount of heat that a direct current (DC) voltage of the same magnitude would produce. For example, 1 V applied across a 1 Ω resistor produces 1 W of heat.

Ultimately...mathematically calculated...AVG seems to run around 30% higher voltage or 70.7%RMS (since its only a one sided square pulse wave that doesn't go to zero then negative voltage like a true AC signal) than in RMS mode, RMS mode is more accurate
http://www.rfcafe.com/references/electrical/square-wave-voltage-conversion.htm

Calculations of R.M.S. value of AC voltage: Suppose an AC voltage has peak voltage (Vp) of 10V. Then its peak–to–peak voltage (Vpp) will be 20V. But due to changing nature of AC voltage, what is its effective value? The AC voltage is always measured in effective value, which is called ROOT MEAN SQUARE (R.M.S.) value.

What is Peak, R.M.S. & Average Value, power factor

However that is for Alternating current...with the Vamo it runs a pulsing square wave waveform

http://masteringelectronicsdesign.com/how-to-derive-the-rms-value-of-pulse-and-square-waveforms/

 

[AttyPops]

what's the difference between the 2 values?
what is AVG?
what is RMS?

You can use either....but the resulting # displayed for voltage will be different. Just ignore the # and adjust it until you like it. Meh.

It's a matter of personal preference and adjustment to delivery device anyway.

I'm still threatening to make an e-cig with a "hotter" --> "Colder" adjustment. No numbers. No readout....

 

[stylezuk]

There does seem to be some slight variations on Vamo's and this includes v5 as mine has no option and is just set to RMS yet pbusardo's review of the v5 has the option.

 

[suspectK]

Wanna break your brain?
Root mean square - Wikipedia, the free encyclopedia


Vavg is calculated by taking the average of the voltage in an appropriately chosen interval. In the case of symmetrical waveforms like the sinewave, a quarter cycle faithfully represents all four quarter cycles of the waveform.

Vrms is the value indicated by the vast majority of AC voltmeters. It is the value that, when applied across a resistance, produces that same amount of heat that a direct current (DC) voltage of the same magnitude would produce. For example, 1 V applied across a 1 Ω resistor produces 1 W of heat.

Ultimately...mathematically calculated...AVG seems to run around 30% higher voltage or 70.7%RMS (since its only a one sided square pulse wave that doesn't go to zero then negative voltage like a true AC signal) than in RMS mode, RMS mode is more accurate
Square Wave Voltages - Vpk, Vpk-pk, Vavg, Vrms - RF Cafe

What is Peak, R.M.S. & Average Value, power factor

However that is for Alternating current...with the Vamo it runs a pulsing square wave waveform

MasteringElectronicsDesign.com : How to Derive the RMS Value of Pulse and Square Waveforms

You going to get into some dielectric theory next?

 

[suspectK]

A lot of weird double posts on the day of today.