Restarting the QML data logger with a blank setup may be useful if the setup is somehow defective and does not allow the opening of a service connection. When you restart with a blank setup, the serial port settings of the QML data logger are restored to their defaults: COM0, 9600, N, 8, N, 1.
Before restarting with a blank setup, contact Vaisala to get a new setup file that you can upload to the QML data logger.
Open the cover of the QML data logger.
Press and keep the reset button pressed down for a few seconds.
The QML logger restarts and displays the text Using blank configuration.