Button
1. Press . The thermal sensor is heated up (5s). Measurement view is opened: The
current reading is displayed, or “――――” lights up if no reading is available. Press
again, turn off the instrument.
2. Press to freeze or unfreeze the displayed readings or air velocity Zero Adjust.
3. Press to enter a setup option. Press again to store the
displayed setting in memory.
4. Press to turn on the backlight. Press it again to turn off the backlight.
Press button for 3 seconds to start or exit setup. (See “Changing Setup Options.”)
5. Press to scroll to the setup option you want to change. Press to increase the
displayed setting.
6. Press to start recording and press again to stop recording. Scroll to the setup option
you want to change. Press to decrease the displayed setting.
7. Performing a multi-point mean calculation or performing a mean calculation in time.
8. Press to step through the maximum and minimum readings. To exit the MAX/MIN
mode, press the button for 2 seconds to return to normal operation.
9. To change between displaying the temperature, flow velocity, and calculated volumetric flow
rate: Press .