Press “RAIN” to select daily, weekly or monthly rainfall display mode. Press “RAIN HISTORY” repeatedly to scroll
through the current & last 6 days/weeks/months data corresponding to your selected rainfall mode. On the bar
chart display, the “0” represents the current period. –1, –2, etc indicate the prior periods. The precise rainfall
reading of the selected period will be shown on the display.
Example 1:
In April, press “RAIN HISTORY” repeatedly in the monthly rainfall mode until “–3” bar chart is shown. The bar
chart and reading indicate the monthly rainfall record in January (from 1st Jan to 31st Jan)
Example 2:
On Wednesday, press “RAIN HISTORY” repeatedly in the weekly rainfall mode until “-1” bar chart is shown. The
bar chart and reading indicate the weekly rainfall recorded last week (from last Sunday to last Saturday).
Example 3:
On Friday, press “RAIN HISTORY” repeatedly in the daily rainfall mode until “–2” bar chart is shown. The bar
chart and reading indicate the daily rainfall record on this Wednesday.
11/ WIND SPEED & DIRECTION
The weather station uses the anemometer to sample the wind speed and direction. You can set the monitor to
display the wind speed in miles per hour (mph), kilometers per hour (km/h), meters per second (m/s), knots and
Beaufort. Press “WIND UNIT” on the back casing until the desired unit appears.
The monitor displays 16 wind directions (N for north, S for south, SW for south-west and so on).
Press “WIND” to select gust & average wind speed display.
Wind direction
: Average wind direction over a 2-minute period
Average wind speed
: Average wind speed over a 2-minute period
Gust wind speed
: Maximum wind speed over a 10-minute period
Beaufort Knots
Wave
height
(meter)
Wave
height
(feet)
WMO
description
Effects observed on the sea
0
Under
1
-
-
Clam
Sea is like a mirror
1
1 – 3
0.07
0.25
Light air
Ripples with appearance of scales; no foam
crests
2
4 – 6 0.15 – 0.3
0.5 – 1
Light breeze
Small wavelets; crests of glassy appearance,
not breaking
3
7 – 10 0.6 – 0.9
2 – 3
Gentle
breeze
Large wavelets; crests begin to break; scattered
whitecaps
4
11 –
16
1 – 1.5
3.5 – 5
Moderate
breeze
Small waves, becoming longer; numerous
whitecaps
5
17 –
21
1.8 – 2.4
6 – 8
Fresh breeze
Moderate waves, taking longer form; many
whitecaps; some spray
6
22 –
27
2.9 – 4
9.5 – 13
Strong
breeze
Larger waves forming; whitecaps everywhere;
more spray
7
28 –
33
4.1 – 5.8 13.5 – 19
Near gale
Sea heaps up; white foam from breaking waves
begins to be blown in streaks
8
34 –
40
5.5 – 7.6
18 – 25
Gale
Moderately high waves of greater length; edges
of crests begin to break into spindrift; foam is
blown in well-marked streaks
9
41 –
47
7 – 9.7
23 – 32
Strong Gale
High waves; sea begins to roll; dense streaks of
foam; spray may begin to reduce visibility
10
48 –
55
8.8 – 12.5
29 – 41
Storm
Very high waves with overhanging crests; sea
takes white appearance as foam is blown in
very dense streaks; rolling is heavy and visibility
is reduced
11
56 –
63
11.2 –
15.8
37 – 52
Violent
Exceptionally high waves; sea covered with
white foam patches; visibility further reduced
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