Digital Anemometer
Operation Manual Operating guidance
4. Operating guidance
4.1 Power On/Off
Press the “ ” key to turn on or off the
anemometer power.
4.2 Reading hold
In the measurement process, if the reading
should be kept, press "HOLD" key to lock the
reading, and display the HOLD symbol; press it
again to unlock.
Note:
In the reading hold state, “FUN”, “MAX/MIN”
and “UNIT” keys are invalid.
4.3 Backlight
In the measurement process, if the ambient
light is too dark to read, you can press " " key to
open the backlight. Backlight timer is set to 15
seconds. During this period, you can press " "
key again to turn off backlight at any time.
Note:
•The luminous body of backlight is LED with
large operating current. Frequently using
backlight will shorten battery life. Do not use
backlight when unnecessary.
- 13 -
Digital Anemometer
Operation Manual Operating guidance
•When the battery voltage ≤7V, the " " (low
battery) symbol will show on the display.
However, in the case of using the backlight, if
the battery voltage ≥7V, the battery voltage
drops because of its larger operating current,
"
" symbol may show (when "
" symbol is
showing, the accuracy of the measurement
can’t be guaranteed). At this moment, you
needn’t replace battery until the "
" symbol
display again under normal use condition
without using backlight.
4.4 Wind speed measurement
Place the detector (fan) into the test
environment, "VEL" symbol will display on the
screen, measurement is done with the fan surface
perpendicularly to the wind direction.
Note:
1. If the detector (fan) is not aiming at the wind
direction, which will bring the measurement
error.
2. For steady wind, the detector (fan) will get
maximum reading when it is aiming at the wind
direction.
- 14 -
