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RAIN COLLECTOR
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The
Rain Collector is designed to meet the guidelines of the World
Meteorological Organization. Rain enters the collector cone, passes
through a debris-filtering screen, and collects in one chamber of the
tipping bucket. The bucket tips when it has collected an amount of water
equal to the increment in which the collector measures (0.01" or 0.2 mm).
As the bucket tips, it causes a switch closure and brings the second
tipping bucket chamber into position. The rain water drains out through
the screened drains in the base of the collector. The collector is
designed for years of accurate, trouble-free service. |
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The body and base of the collector are constructed
of tough, UV resistant plastic; the tipping bucket pivots on bearings that
minimize friction and wear. Stainless steel adjustment screws under each
chamber of the tipping bucket allow you to fine-tune the calibration of
the Rain Collector. The Rain Collector Heater is available for use with
either of the Rain Collector units. This heater allows the Rain Collector
to measure the moisture content of snowfall and protects the internal
components from freezing rain. If mounted according to instructions, the
Rain Collector is wind tunnel tested to be stable in winds up to 140MPH
(224 Km/Hr). |
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SPECIFICATIONS |
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General |
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Sensor
Type
. . . . .
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. . . . . .
. . . . . . . . . . . . .
. . . . . .
Tipping bucket with magnetic reed switch |
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Output
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact
closure |
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Attached
Cable Length.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . .
40'(12
m) |
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Cable
Type
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-conductor, 26 AWG |
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Connector
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
Modular
connector (RJ-11) |
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Recommended Maximum Cable Length
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 900'(270
m) |
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Housing
Material
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
UV-stabilized
ABS plastic |
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Dimensions |
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Rain
Collector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . .
8.75" diameter x 9.5" high (16.5 cm diameter x 24 cm high) |
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Collection Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
in2 (200 cm2) |
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Weight
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 lbs. 3
oz. (1 kg) |
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Console
Data (These
specifications apply to sensor output as converted by Davis Instruments
weather station consoles) |
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Daily
Rainfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . .
0.00'to 99.99'(0.0 mm to 999.8 mm) |
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Total
Rainfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
0.00'to 99.99'(0.0 mm to 9999 mm) |
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Rate of
Rainfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .
. . . . . . ... . . . . .
. . . . . . .
0.00'to 72.0'per hour (0 to 999 mm per hour) |
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Accuracy |
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Rainfall . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
±4%, ±1 rainfall count between 0.01" and 2.00" per hour (0.2 mm and 50.0
mm per hour); ±5%, ±1 rainfall count between 2.00" and 4.00" per hour
(50.0 mm and 100.0 mm per hour) |
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Resolution
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. .
0.01'(0.2 mm) |
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Sample
and Display Update Interval
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
seconds (max) |
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WeatherLink¨
Data (These
specifications apply to sensor output as logged and displayed by the
WeatherLink) |
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Daily
Rainfall
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . .. . . . . . . .. .. . . . . . . . . . . .
Total
during archive interval |
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Total
Rainfall
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. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . Total
during archive interval |
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Rate of
Rainfall
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. . . . . . . . . . . . .
. . . . . . .
Maximum value during archive interval |
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Input/Output Connections |
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Black &
Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Switch
terminal |
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Green &
Yellow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . Switch
terminal |
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RAIN COLLECTOR |
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MECHANISM |
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