Apogee SP-214 Руководство пользователя - Страница 6
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SPECIFICATIONS
Heater
Sensitivity
Calibration Factor
(Reciprocal of Sensitivity)
Calibration Uncertainty
Calibrated Output Range
Measurement Repeatability
Long-term Drift
(Non-stability)
Non-linearity
Response Time
Field of View
Spectral Range
Directional (Cosine) Response
Temperature Response
Operating Environment
Dimensions
Mass
Cable
Calibration Traceability
Apogee Instruments SP series pyranometers are calibrated through side-by-side comparison to the mean of four Apogee
model SP-110 transfer standard pyranometers (shortwave radiation reference) under high intensity discharge metal halide
lamps. The transfer standard pyranometers are calibrated through side-by-side comparison to the mean of at least two ISO-
classified reference pyranometers under sunlight (clear sky conditions) in Logan, Utah. Each of four ISO-classified reference
pyranometers are recalibrated on an alternating year schedule (two instruments each year) at the National Renewable
Energy Laboratory (NREL) in Golden, Colorado. NREL reference standards are calibrated to the World Radiometric Reference
(WRR) in Davos, Switzerland.
SP-110
N/A
± 5 % (see Calibration Traceability below)
Less than 2 % per year
Less than 1 % (up to 2000 W m
360 to 1120 nm (wavelengths where response is 10% of maximum;
see Spectral Response below)
± 5 % at 75º zenith angle (see Cosine Response below)
0.04 ± 0.04 % per C (see Temperature Response below)
-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths
24 mm diameter; 27.5 mm height
90 g (with 5m of lead wire)
5 m of two conductor, shielded, twisted-pair wire; additional cable available in
multiples of 5 m; santoprene rubber jacket (high water resistance, high UV
stability, flexibility in cold conditions); pigtail lead wires
SP-230
780 Ω,15.4 mA current drain and 185
mW power requirement at 12V DC
-2
0.2 mV per W m
5.0 W m
-2
per mV
0 to 400 mV
Less than 1 %
-2
)
Less than 1 ms
180º
of 30 m
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