Temperature Protection
The DNA 75 directly measures and limits the temperature of the heating coil during operation.
By preventing the coil from becoming too hot regardless of fluid, wicking or airflow, a variety of
undesirable situations can be prevented. For example, appropriate temperature settings will prevent the
wicking material from charring, which compromises taste and introduces unintended chemicals into the
vapor. Appropriate temperature settings will also reduce the breakdown of flavoring and base liquid
components, which could impact taste or safety.
Evolv’s Temperature Protection Technology requires a heating coil made from Nickel 200 alloy
or other materials with a well-defined temperature coefficient of resistance, rather than Nickel
Chromium or Kanthal alloys. If the temperature reaches the maximum value, the wattage applied to the
atomizer coil is reduced to prevent overheating. Please note that the temperature reading is the
average temperature of the atomizer coil, and care should be taken to construct the heating coil so that
the temperature is uniform, without hot or cold spots.
Because wattage, not temperature controls vapor volume, large vapor volumes can be produced
without unnecessarily high temperatures. Temperature Protection is most helpful if the atomizer begins
to dry out, the user pauses during a puff, the beginning or end of the puff, or if the wattage setting is
inappropriate for the attached atomizer.
In normal operation, when the device is not firing the maximum temperature setting is
displayed on the screen. When the device is firing, the actual average temperature of the coil is
displayed on the screen.
By default, the Temperature Protection setting is 450° Fahrenheit. To change the limit
1)
Lock the device by pressing the Fire button five times.
2)
Hold down the UP and DOWN adjust buttons for two seconds.
3)
After two seconds, the maximum temperature will be displayed, and the UP and DOWN buttons
should be released.
4)
Use the UP and DOWN buttons to adjust the maximum temperature
5)
When the display shows the desired maximum temperature, press the Fire button to exit
temperature adjust mode.
The maximum temperature is adjustable between 200° Fahrenheit and 600° Fahrenheit. To
disable the temperature protection entirely, adjust the limit up to 600 degrees, then press the UP
button one additional time. The temperature limit will read OFF.
To switch to Celsius temperature, adjust temperature down to 200° Fahrenheit, then press the
DOWN button one additional time. The temperature will switch to reading and adjusting in Celsius.
Preheat
When the DNA 75 is used with a temperature sensing atomizer, an additional feature called
Preheat is activated. No vapor is produced when the temperature is below the boiling point of the
liquid. Preheat applies extra power until the heating coil is up to operating temperature to shorten the
