Solar Radiation Sensor 　 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.

SPECIFICATIONS

General

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

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

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

Cosine Response

Percent of Reading . . . . . . . . . . . . . . . . . . . . . . . . . . ±3% (0° to ±70° incident angle); ±10% (±70° to ±85° incident angle)

Percent of Full Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . .±2% (0° to ±90°)

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 . . . . . . . . . . . . . . . . . ±5%

Solar Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5%

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 ±10%; 3mA (typical)

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

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

Reference temperature = 72°F (22°C)