well hello!
yes i do calibrate them with a temperature sensor. the calibration process is not overviewed by nasa and i found measuring convective air is tricky in itself.
the calibration is such that the
temperature displayed is the one of the LOAD in the glass joint. thats exactly what is calibrated. the coils are hotter than the displayed value!
also they do glow a bit in the dark at 260degC.
combustion does occur as stated in the manual at around 240degC. at least for this device, other manufacturers have other means of measuring temperatures so the devices can be hotter or colder or focus heat in a point where its hotter etc.
@Wicked0ne please increase your temperature OR increase your resistance until you get the results you are looking for.
go to 'menu>coils>manage' and increase the number at line TUBO (TCR previously) at around 0.002 at a time. make sure the lock symbol is there before you leave again.
for science you could also do a 400degF session right away just to see where this vapor is hiding
to get everything going i recommend using the warmup function, maybe directly warmup2cruise (set W2C to 1 in menu>vaping). tubo does unleash its full potential when the glass tubes are warmed up.
in addition to that the tubo likes a harder pull (
@dudeguy maybe too) and also benefits from prolonged draws that really transfer the heat to the load, especially when starting with cold tubo, bowl and glass.