• Replace the batteries if the low battery indicator (14) on the LC display (3) lights up.
Ensure that the measuring device is switched off before replacing the batteries.
• To replace the batteries, proceed as outlined above. Remove the used batteries from the
battery compartment before inserting new batteries.
Operation
a) Switching on and off
•
Briefly press the On/Off button
(2) to switch the device on.
•
Briefly press the On/Off button
(2) to switch the device off manually.
b) Automatic shut-off
The device has a deactivatable automatic shut-off function. The automatic shut-off ensures that
the measuring device is automatically switched off after 5 minutes when not in use, to save
battery power. The automatic shut-off function is pre-set ex works. You can deactivate and
activate automatic shut-off as you prefer. Proceed as follows:
• To deactivate automatic shut-off, press and hold the
HOLD BL
button (8) at the same time
as the On/Off button (2). “APO OFF” appears on the LC display (3) to indicate the status
of the automatic shut-off. The status is now switched off. The measuring device will remain on
even after 5 minutes of inactivity. The measuring device must then be switched off manually.
• Automatic switch-off is reactivated every time the device is restarted, and can be deactivated
again as outlined above.
c) Positioning the measuring device
•
Keep the measuring device at a right angle to the direction of flow in the air flow or wind being
measured. The air flow being measured should have direct and unhindered access to the air
inlet (5), without obstacles being able to distort the air flow measured value.
d) Flow velocity and temperature display
•
The flow velocity is displayed together with the current temperature. The measuring device
measures the flow velocity at a measuring interval of 0.5 seconds.
•
The flow velocity measurement range is between 0 m/s and 30 m/s as standard.
•
If the flow velocity of the air in the air inlet is in excess of 45 m/s, “OL” is displayed instead
of the flow velocity.
• If the measured temperature is outside of the measurement range (below -10 °C or in excess
of +50 °C,), “OL” is displayed instead of the temperature.
•
If the measured ambient temperature is below 0 °C and the flow velocity is in excess of 5 m/s,
“Wind Chill” appears on the LC display (3).
e)
Switching the flow velocity display between MAX and AVG
• Press the
MAX AVG
button (1) to switch between the maximum wind strength together
with the “MAX symbol” (10), the average wind strength with the “AVG” symbol (12) and the
normal/current wind strength displays.
•
The “MAX”symbol (10) indicates that the displayed flow velocity value is the maximum
measured; if the “AVG” symbol (12) is displayed, the value is the flow velocity calculated
using the last five values; the current wind strength is displayed when there is no additional
symbol on the LC display (3).
• The “MAX” symbol (10) as well as the “AVG” symbol (12) are displayed together with the
numerical values and the bar graph of the Beaufort scale (9).
• To freeze the measured value for longer comparison, press the
HOLD BL
button
(8) briefly
to hold the value on the LC display (3). In release the frozen value again, press the
HOLD
BL
button
(8) briefly again.
f) Switching between units of measure
• Press the
UNIT
button
(7) to cycle through the different flow velocity units of measure.
Press once briefly to move one step forward in the display unit setting cycle; order: m/s >
km/h > ft/min > knots > mph. The current unit is displayed.
• Press and hold the
UNIT
button (7) for a few seconds to switch between temperature units
ºC and ºF. The current temperature unit is indicated on the LC display (3).
g) Backlight
• If the backlight is not switched on, press and hold the
HOLD BL
button (8) for a few
moments to switch the backlight on. The LC display (3) is no longer illuminated.
• If the backlight is switched on, press and hold the
BL
button (8) for a few seconds to
switch the backlight off. The LC display (3) is no longer illuminated.
h) Wind chill temperature
• The perceived temperature or wind chill temperature indicates the perceived ambient
temperature, which may differ from the actual temperature due to strong winds. The
perceived temperature is only calculated below 0 °C with a wind speed in excess of 5.0
km/h. If the temperature is in excess of 0 °C, the wind chill temperature is the same as the
measured temperature.
• If the temperature is below 0 °C and the wind speed is in excess of 5 m/s, the measuring
device will indicate “Wind Chill” (23). “Wind Chill” is indicated in the lower left corner of the LC
display (3). The corresponding numerical value is displayed in place of the actual temperature
and represents the perceived temperature at the current wind speed.
The Beaufort scale
• The Beaufort scale is an empirical scale for estimating the wind speed without using
measuring instruments. It works by relating wind speed to observed conditions on sea or
land, such as the movement of trees or waves on the surface of the ocean. It is named after
Sir Francis Beaufort. The wind speed on land and sea is calculated in different ways. The
anemometer displays measurements on the Beaufort scale from 0-12 using a bar graph. The
table below provides an approximate conversion of Beaufort measurements into different
units.
Beaufort scale
Meaning
m/s
kts
mph
km/h
ft/min
0
No wind,
calm
0 - 0.2
0 - 1
0 - 1
0 - 1
0 - 58
1
Light air
0.3 - 1.5
1 - 3
1 - 3
1 - 5
59 - 314
2
Light breeze
1.6 - 3.3
4 - 6
4 - 7
6 - 11
315 - 668
3
Gentle
breeze
3.4 - 5.4
7 - 10
8 - 12
12 - 19
669 - 1082
4
Moderate
breeze
5.5 - 7.9
11 - 16
13 - 18
20 - 28
1083 - 1574
5
Fresh breeze 8.0 - 10.7
17 - 21
19 - 24
29 - 38
1575 - 2125
6
Strong
breeze
10.8 - 13.8
22 - 27
25 - 31
39 - 49
2126 - 2735
7
Near gale
13.9 - 17.1
28 - 33
32 - 38
50 - 61
2736 - 3385
8
Fresh gale
17.2 - 20.7
34 - 40
39 - 46
62 - 74
3386 - 4093
9
Severe gale
20.8 - 24.4
41 - 47
47 - 54
75 - 88
4094 - 4822
10 Storm
24.5 - 28.4
48 - 55
55 - 63
89 - 102
4823 - 5609
11 Violent storm
28.5 - 32.6
56 - 63
64 - 72
103 - 117
5610 - 6417
12 Hurricane
32.6
>63
>72
>117
>6417
Care and cleaning
• Always disconnect the product from the power supply before cleaning it. To do this, remove
the batteries.
• Never use aggressive detergents, rubbing alcohol or other chemical solutions, as these could
damage the housing or stop the product from functioning properly.
• Use a dry, lint-free cloth to clean the product.
Disposal
a) Product
Electronic devices are recyclable waste and must not be disposed of in the
household waste. At the end of its service life, dispose of the product according to
the relevant statutory regulations.
Remove any inserted batteries and dispose of them separately from the product.
b) Batteries
You are required by law to return all used batteries (Battery Directive). Batteries
must not be placed in household waste.
Batteries containing hazardous substances are labelled with this symbol to indicate
that disposal in household waste is forbidden. The abbreviations for heavy metals
in batteries are: Cd = Cadmium, Hg = Mercury, Pb = Lead (indicated on the battery,
e.g. below the waste bin icon on the left).
Used batteries can be returned to local collection points, our stores or battery retailers.
You thus fulfil your statutory obligations and contribute to protection of the environment.
