Campbell Scientific CS300 Silicon Pyranometer - Manual (Page 13)

CS300 Pyranometer
Cosine response: ±5% at 75° zenith angle. ±2% at 45° zenith
angle
Response time: <1 ms
Temperature response: <1% at 5 to 40 °C
Long-term stability: <2% per year
Operating temperature: –40 to +70 °C
Relative humidity: 0 to 100%
Output: 0.2 mV per W m –2
Diameter: 2.4 cm (0.9 in)
Height: 2.5 cm (1.0 in)
Weight: 65 g (2.3 oz) with 2 m lead wire
Measurement range: 0 to 1750 W m –2 (full sunlight ≈ 1000 W m –2 )
Light spectrum
waveband: 360 to 1120 nm (wavelengths where response
is 10% of maximum)
The black outer jacket of the cable is Santoprene ® rubber. This
compound was chosen for its resistance to temperature extremes,
moisture, and UV degradation. However, this jacket will support
combustion in air. It is rated as slow burning when tested
according to U.L. 94 H.B. and will pass FMVSS302. Local fire
codes may preclude its use inside buildings.
7. Installation
If you are programming your datalogger with Short Cut, skip Section 7.3,
Wiring to the Datalogger, and Section 7.4, Programming. Short Cut does this
work for you. See Section 4, Quickstart, for a Short Cut tutorial.
7.1 Siting
The CS300 should be mounted such that it is never shaded by the tripod/tower
or other sensors. The sensor should be mounted with the cable pointing
towards the nearest magnetic pole. For example, in the Northern Hemisphere,
point the cable toward the North Pole.
Mounting height is not critical for the accuracy of the measurement. However,
pyranometers mounted at heights of 3 m or less are easier to level and clean.
NOTE
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