Rain Sensor - La Crosse Technology WS-2510 Operating Instructions Manual

Rain sensor

For the rain sensor, rocker strokes are counted and the status of the current 7
bit binary counter is transmitted. In order to obtain a rainfall quantity, the
current status should be subtracted from that of the previous counter and the
difference should be multiplied by 300 ml. This will give the decrease in rain-
fall.
L21 Rain Lo
H21 Rain Hi
Wind sensor
The wind is transmitted in BCD format in km/h, where the 10 position represents
an exception, as it can be a value > 9. A wind speed of 123.4 km/h would be
transferred in the form <12> <3> <4>. This yields a range of values from 0 to
159.9 km/h.
The wind direction is transferred with a resolution of 5 °, where the bottom bit in
the first nibble represents the 5 value. Both of the upper bits of the 100 nibble
give the range of fluctuation of the wind direction ((±0 °; ±22.5 °; ±45 °: ±67.5 °)
L22 Wind in km/h
H22 Wind in km/h
L23 Wind in km/h
H23 Direction in °
L24 Direction in °
H24 Direction in °
Indoor sensor
The air pressure is transmitted in BCD format in hPa, where the 100 position
represents an exception, as it can be a value > 9. An air pressure of 1,023 hPa
would be transferred in the form <10> <2> <3>. This yields a range of values
from 0 to 1,299 hPa.
The temperature/humidity are transferred as described previously.
L25 Press. in hPa
H25 Press. in hPa
L26 Press. in hPa
H26 Temp Int in °C b
b -b lowest 4-bit from 7-bit rocker counter
3 0
b -b lowest 3-bit from 7-bit rocker counter
6 4
b New flag;
7
b -b 0.1 (0-9)
3 0
b -b 1 (0-9)
7 4
b -b 10 (0-15) ‡ max.: 159.9 km/h
3 0
b -b 10 (0-9)
7 4
b -b 100 (0-3)
1 0
b -b Fluctuation range;
3 2
±22,5 °; 10
b 5°
0
b New flag;
3
b -b 1 (0-9)
3 0
b -b 10 (0-9)
7 4
b -b 100 (0-12)
3 0
-b 0.1 (0-9)
7 4
00
±45 °; 11
Flag (0
±0 °; 01
±67,5 °
xx0°; 1 xx5°)
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