Campbell Scientific Solar1000 Station - Manual (Page 41)

LP02 Pyranometer
Spectral selectivity +/- 5% (305 to 2000 nm)
Temperature response
(within an interval of 50°C)
within 6% (-10 to +40°C)
Tilt response within +/- 2%
LP02 ADDITIONAL MEASUREMENT SPECIFICATIONS
Sensitivity 10-40
μ V/Wm -2
Expected voltage output 0.1 to + 50 mV in natural sunlight
Operating temperature -40 to +80°C
Sensor resistance Between 40 and 60 Ohms
Power required Zero (passive sensor)
Standard cable length 16 ft (4.8 m)
Range 0-2000 Wm -2
Cable replacement Cable can be replaced by the user
Spectral range 305 to 2800 nm (50% transmission
points)
Required datalogger channels 1 differential or 1 single ended
voltage channel
Leveling Level and leveling feet included
Expected accuracy for daily sums +/- 10%
DIMENSIONS / SHIPPING DIMENSIONS
LP02:
3 in dia x 3 in / 8x4x10 in
WEIGHT/SHIPPING WEIGHT
LP02:
0.8 lbs / 1.2 lbs
1 Guide to Meteorological Instruments and Methods of Observation, fifth
edition, WMO, Geneva and ISO9060
6.3. Installation
The LP02 is usually installed horizontally, but can also be installed at any
angle including an inverted position. In all cases it will measure the flux that is
incident on the surface that is parallel to the sensor surface.
Site the LP02 to allow easy access for maintenance while ideally avoiding any
obstructions above the plane of the sensing element. It is important to mount
the LP02 such that a shadow will not be cast on it at any time.
If this is not possible, try to choose a site where any obstruction over the
azimuth range between earliest sunrise and latest sunset has an elevation not
exceeding 5°. Diffuse solar radiation is less influenced by obstructions near
the horizon. For instance, an obstruction with an elevation of 5° over the
whole azimuth range of 360° decreases the downward diffuse solar radiation
by only 0.8%.
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