Measuring The Wind Speed And Air Flow Rate - VOLTCRAFT UM5/1 200 Notice D'emploi

12. Measuring the wind speed and air flow rate

Watch out for loose or flying parts in strong winds. These could cause an injury.
Note the wind direction indicator in the anemometer probe!
The wind direction is indicated by an arrow in the anemometer housing. The wind direction must be observed in order
to avoid incorrect measurements.
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Pfeil
Make sure that the impeller in the sensor can move freely.
Follow the steps below to take a measurement:
1. Open the side cover and connect the plug on the anemometer probe (17) to the "WIND" socket (see section c)
"Connecting the sensors" in chapter 8).
2. Press the on/off button
3. To switch to wind speed measurement mode ("VEL"), press the
display A on the LCD screen (7)
4. Point the anemometer probe into the wind, ensuring that it does not tilt to one side. The arrow marking in the impel-
ler casing must be pointing in the direction of the wind. The measured wind speed will be shown in the selected
unit (e.g. "m/s") on display A on the LCD screen (7).
5. Press the button (13) to change the display unit. Each press changes the unit. You can choose from knots,
mph, ft/min, m/s and km/h.
6. For instructions on how to change the unit, see section "b) Changing the unit settings / Setting the wind speed unit"
in chapter 9 ("Setting variable").
7. Display B will show either the measured area (indicated by the "AREA" symbol on the LCD display), or the "FLOW"
symbol will be displayed together with the measured air flow rate.
8. Press the button (3) to switch between the area and air flow rate measurements. Each press switches between
the two measured values on display B. The "AREA" and "FLOW" symbols will appear alternately.
9. To select another area from the predefined area sizes, press the
10. Press the (13) or
11. Confirm your selection with the button (15). For instructions on how to set the predefined area sizes, see sec-
tion "b) Changing the unit settings / Setting the size of the measured area (pre-selection)" in chapter 9 ("Setting
variable").
12. After you have finished taking measurements, press the on/off button (1) to switch off the meter. Remove the
anemometer probe and close the side cover.
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(1) to switch on the meter.
(14) button to select the size of the measured area from memory slots S-1 to S-6.
button (5) until the "VEL" symbol appears in
button (2) to access SETUP mode.