Can I ask you to test the temperature after waiting 1 minute after the device vibrates? In my opinion the 2 qualities that you pay more money for with vaporizers are the materials in the air path and the speed in which the vape actually reaches temperature.
I will try to check the temperature again today after a minute of heating, everything is as you asked
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After:
I took repeated temperature measurements in the Roffu chamber and there is good news!
I conducted 3 tests, a high-current Moliсel P26A infected to 100% was used, a glass chamber with a partition removed, the upper part of the Roffu was removed. The ambient temperature is +27 degrees Celsius. A 3-minute session mode was used, the tests started after 60 seconds of warming up. So
1 test) The thermocouple was in a capsule, the capsule "hung" over the heater without touching it, the air gap was 4 mm. This was because of the design features for the measurement. As a result of a long puff (40-45 seconds) I was barely able to reach a temperature of 140 degrees Celsius. After exhaling, I repeated the puff and reached a temperature of only 142 degrees Celsius.
2 test) I decided not to give up and changed the design for the measurement. I removed the capsule, lowered the thermocouple almost to the edge of the heater, blocked the air flow above with a dense cotton plug. The air was barely moving! And I reached a temperature of 230 degrees Celsius after 40-45 seconds of tightening.
3) the test. I used the capsule again, but lowered it by placing it on the heater (the glass mouthpiece partition was removed, I remind you). The thermomark was lowered almost to the bottom of the capsule, I'm not sure if it touched the bottom of the capsule or not. I removed the cotton a little bit to make the puff easier. While a minute of heating has passed without tightening, the thermocouple has heated up from 55 degrees to 100 degrees Celsius! And with a puff I got a stable temperature of 205 degrees Celsius, with some difficulty I brought it to 220 degrees. The temperature rose faster when I lowered the intensity of the puff, although I pulled very slowly as it was
Conclusions:
1) The use of capsules reduces the heating efficiency by some percentage.
2) Roffu reaches the stated temperatures only with a very slow puff. He is extremely critical of the airflow! If you pull hard, the temperature will suffer.
3) Roffu heats up to the stated temperatures only when combined with conductive heating, due to the heated upper part of the heater and if you use a regulating partition in the chamber,
the temperature will be greatly reduced.
4) After use, there was a barely noticeable, but quite distinct smell of microcircuit varnish from Roffu...not even silicone, namely varnish or paint, which is coated either with a heater or with trace elements. I.e., when heated, Roffu materials begin to emit certain chemical odors.
5) in my initial tests, where I reached a temperature of 160-170 degrees, I did not continue to conduct research, and now I realized that the temperature spread is due to the distance of the thermocouple to the Roffu heater, which is very critical for this device due to the strong conductive effect. Previously, I measured the temperature in a more expensive evaporator with a powerful airflow, which did not have such a dependence at all and which had the upper part of the heater (or elements in the very depth of the chamber) they didn't heat up at all until you started taking a puff.
Basically, if you pull very very slowly, you can reach 220 degrees. But I repeat, the effect of Roffu is 2 times lower than when using 100% convective evaporators, to which, after research, I cannot attribute Roffu .
Roffu is a conductive convective evaporator that is extremely demanding for low airflow.