Major tech MT90 Manual de instrucciones - Página 4
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5. Button Description
Power on/off, Auto-power off
Power on: Press the button ' ' to switch power on, system has a
Power off: Press the button ' ' to switch the power off.
Auto power off: Auto-power off signal ' ' displays in the left corner
Note: Press the power on/off button for over 1 minutes, it will be
recognized as faulty operation and the instrument will auto
power off.
UNITS button: Press to switch air velocity unit; hold down to switch
button: Hold down to activate or deactivate Bluetooth.
HOLD/
or deactivate back light.
MAX/MIN button: Press to record Maximum, Minimum and Average
readings of temperature and air velocity.
Note
: The MAX/MIN
readings.
6. Operation and Settings
Data Hold
Press the HOLD button to freeze the temperature and velocity readings,
meanwhile, the hold symbol is displayed on LCD when measures. Press
the HOLD button again to return to normal measurement.
Temperature and Air velocity measurement
1.
Turn on the instrument by pressing power on/off button.
2.
Press UNITS button to select unit of measurement.
Note: After power on, the meter will display the preset unit before last
power off.
3.
Put the instrument in the environment that is to be measured.
4.
Observe readings on the LCD display, The larger digits displayed on
main LCD is Air Velocity reading. The smaller digits displayed on
upper right LCD is the temperature reading.
3
default auto power off. Hold down the button to switch the
power on and disable auto power off function. Hold down
the button again to enable the auto power off function .
of LCD and the instrument will auto-power off in
10minutes of no button operations.
temperature unit.
button: Press to hold the current data; hold down to activate
button is deactivated when holding the current