Figure 2 Figure 1


Cosine response of SP series.


Graph shows percent error of Apogee SP-110 relative to Kipp & Zonen CM21 at zenith angles throughout the day.


Pricing


SP-110 Pyranometer, 0.2V output (5 m lead length) ....................................$169 -L-10 with 10 m lead length .....................................................................$179 -L-15 with 15 m lead length .....................................................................$189 -L-20 with 20 m lead length .....................................................................$199 SP-212 Amplified pyranometer, 2.5V output (5 m lead length) ......................$219 SP-215 Amplified pyranometer, 5V output (5 m lead length) .........................$219 Accessory AL-100 Leveling plate (pg 40) ....................................................................$29


Specifications Cosine Response:


• 45º zenith angle: < 1% • 75º zenith angle: ± 4%


Absolute Accuracy: • ± 5%


Uniformity: • ± 3%


Repeatability: • ± 1%


Long-Term Drift: • Less than 3% per year


Mass: • 70 g (with 5 m lead wire)


Operating Environment: • -25 to 55 C • 0 to 100% relative humidity • Designed for continuous outdoor use • Submersible in water


Warranty: • 1 year against defects in materials and workmanship


SP-110 only: • Responsivity: 0.20 mV per W m-2 • In Full Sunlight: 220 mV (1100 W m-2


) )


• Linear Range: 0 - 350 mV (0 - 1750 W m-2


• Sensitivity: custom calibrated to exactly 5.00 W m-2


per mV • Input power: none, self-powered 7 www.apogeeinstruments.com


SP-212 & 215 Amplified only: • Current Draw: 285 µA


2.5 V Option (SP-212): • Output: 0 to 2.5 V (2.2 V = full sunlight 1100 W m-2


)


• Input Power: 2.5 to 5.5 VDC • Sensitivity: Custom calibrated to exactly 0.5 W m-2


per mV


5.0 V Option (SP-215): • Output: 0 to 5 V (4.4 V = full sunlight 1100 W m-2


)


• Input Power: 5 to 5.5 VDC • Sensitivity: Custom calibrated to exactly 0.25 W m-2


per mV


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