65
4.7 Wind (dir speed):
1. Indication ‘wind’
2. Actual wind direction
3. Wind speed, expressed in colloquial language (see also * add 3)
4. Illuminates when the max. wind speed alert is set
5. Wind speed, according to the Beaufort scale
6. Wind direction at this moment (large arrow)
7. Wind directions of the last 5 minutes, max. 6 small arrows that
disappear after 5 minutes
8. Indication of whether the displayed wind speed is an average
speed or a wind gust (see also * add 8)
9. Indication of whether the wind speed is displayed in
mph
(
miles per hour
), in
m/s
(
meters per second
),
in
km/h
(
kilometers per hour
) or in
Knots
(
1 KNOTS = 1.151 mph (1.852 km/h)
) (see also * add 9)
10. Actual wind speed
* add 3: LIGHT = 1-19km/h
MODERATE = 20-49 km/h
STRONG = 50-88 km/h
STORM = ≥ 88 km/h
* add 8: AVERAGE = average speed
GUST = wind gust
Briefly press the
button to switch between these indications.
* add 9: You may set the desired unit as follows:
1. press and hold the button for 2 seconds
2. use / to select the desired unit
3. briefly press the
button
4.8 Wind chill and dew temperature:
1. Indication of whether this displayed temperature is the ‘
Feels like
’, the ‘
Wind chill
’, the ‘
Heat Index
’ or
the ‘
Dew Point
’ (see also * add 1)
2. Temperature according to the indication shown under 1 (see also * add 2)
* add 1: Feels like: temperature as you experience it
Wind Chill: combination of the measured temperature and the wind speed
Heat index: combination of the measured temperature and the humidity
Dewpoint (Dew point temperature): the temperature at which water vapour turns to water (mist,
dew or frost). This temperature depends on the indoor temperature and the air pressure.
Briefly press the
button to switch between these indications.
* add 2: At HEAT INDEX:
the alert level is:
< 27°C (display ‘LO’)
no danger
80°F - 90°F (27°C - 32°C)
pay attention (risk of exhaustion due to heat)
91°F - 105°F (33°C - 40°C)
pay close attention (risk of dehydration due to heat)
106°F - 129°F (41°C - 54°C)
danger (increased risk of exhaustion due to heat)
≥130°F (≥55°C)
extreme danger (high risk of dehydration / stroke)
1
2
7
1
4
2
3
5
6
8
9
10
Содержание WS-4900
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