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Ãâ·Â: 0 ~ 3VDC: 1.67mV per W/m2 Àü¿ø: 3V DC

Solar Radiation Sensor

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For use with Vantage Pro and Vantage Pro2. (Already included with Vantage Pro Plus and Vantage Pro2 Plus.)

Measures solar radiation and is required (along with an anemometer and a temperature/humidity sensor) if you wish to monitor evapotranspiration.

Diffuser element and housing are carefully designed for accurate cosine response. Silicon photo diode provides good match to solar spectrum. Two-piece housing minimizes radiation heating, allows convection cooling of the sensor, and prevents the trapping of water or dust. Includes built-in level and 3' (0.9 m) cable.

Compatible with both original Vantage Pro and Vantage Pro2.

Buy it now, using our secure e-commerce system. Or click "More Info" to download copies of our catalog pages, specifications, or instruction manuals.

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SPECIFICATIONS

General

Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . -40¡Æ to 150¡Æ F (-40¡Æ to 65¡Æ C)

Sensor Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Silicon photodiode

Spectral Range (10% points) . . . . . . . . . . . . . . . . . . . . . . . . 400 to 1100 nanometers

Cosine Response

Percent of Reading . . . . . . . . . . . . . . . . . . . . . . . . . . ¡¾3% (0¡Æ to ¡¾70¡Æ incident angle); ¡¾10% (¡¾70¡Æ to ¡¾85¡Æ incident angle)

Percent of Full Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . .¡¾2% (0¡Æ to ¡¾90¡Æ)

Attached Cable Length. . . . . . . . . . . . . . . . . . . . . . . . . . 16¡¯ (5 m)

Cable Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-twisted pair, 24 AWG shielded cable with UV-resistant jacket, wires stripped and

tinned

Recommended Maximum Cable Length . . . . . . . . . . . . . 200¡¯ (61 m)

Housing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UV-resistant plastic

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2¡± x 2.75¡± x 2.25¡± (51 mm x 70 mm x 57 mm)

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 oz. (255 g)

Console Data (These specifications apply to sensor output as converted by Davis Instruments weather station consoles.)

Range

Solar Radiation Intensity . . . . . . . . . . . . . . . . . . . . . . 0 to 1500 W/m2

Solar Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 1999.9 Langleys

Accuracy

Solar Global Radiation Intensity . . . . . . . . . . . . . . . . . ¡¾5%

Solar Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ¡¾5%

Resolution

Solar Radiation Intensity . . . . . . . . . . . . . . . . . . . . . . 1 W/m2

Solar Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 Langleys

Sample and Display Update Interval

Solar Radiation Intensity . . . . . . . . . . . . . . . . . . . . . . 12 seconds (6 seconds when selected for display)

Solar Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 minute

WeatherLink¡§ Data (These specifications apply to sensor output as logged and displayed by the WeatherLink.)

Solar Radiation Intensity . . . . . . . . . . . . . . . . . . . . . . . . Average over archive interval

Solar Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sum over archive interval in Langleys; sum over archive interval in Joules/cm2

(range: 0 to 1999.9; resolution: 0.1 J/cm2) using Energy WeatherLink

Input/Output (These specifications apply to the sensor as a separately-sold item.)

Connections (Diagram on reverse)

White . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output (0 to +3VDC); 1.67 mV per W/m2

Black (2 wires) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ground

Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V DC ¡¾10%; 3mA (typical)

Bare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shield Ground

Temperature Coefficient . . . . . . . . . . . . . . . . . . . . . . . . -0.034% per degree F (- 0.063% per degree C);

Reference temperature = 72¡ÆF (22¡ÆC)