Apogee SL-510 Manual do Proprietário - Página 6
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SPECIFICATIONS
Sensitivity
Calibration Factor
(Reciprocal of Sensitivity)
Calibration Uncertainty
Measurement Range
Output from Thermopile
Output from Thermistor
Temperature Sensor
Input Voltage Requirement for
Thermistor
Measurement Repeatability
Long-term Drift
Non-linearity
Response Time
Field of View
Spectral Range
Temperature Response
Window Heating Offset
Zero Offset B
Tilt Error
Uncertainty in Daily Total
Heater
Dimensions
Mass
Cable
Warranty
Calibration Traceability
Apogee SL-510 and SL-610 pyrgeometers are calibrated against the mean of two Apogee model SL-510 or SL-610
transfer standard pyrgeometers inside a custom blackbody cone held at multiple fixed temperatures over a range
of radiometer (detector and sensor body) temperatures. The temperature of the blackbody cone is measured with
replicate precision thermistors thermally bonded to the cone surface. The transfer standard pyrgeometers are
calibrated against the mean of least two reference upward-looking pyrgeometers under all sky conditions in Logan,
Utah. Each of the two reference pyrgeometers are recalibrated on an alternating year schedule (one instrument
per year) at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. NREL reference standards are
calibrated to the World Infrared Standard Group (WISG) in Davos, Switzerland.
SL-510-SS
-2
0.12 mV per W m
(variable from sensor to sensor, typical value listed)
-2
8.5 W m
per mV (variable from sensor to sensor, typical value listed)
± 5 % (see Calibration Traceability below)
-200 to 200 W m
0 to 2500 mV (typical, other voltages can be used)
30 kΩ thermistor, ± 1 C tolerance at 25 C
2500 mV excitation (typical, other voltages can be used)
Less than 2 % change in sensitivity per year
Less than 5 % from -15 to 45 C
780 Ω, 15.4 mA current draw and 185 mW power requirement at 12 V DC
27.5 mm height, 23.5 mm diameter
90 g
5 m of six conductor, shielded, twisted-pair wire; TPR jacket (high water
resistance, high UV stability, flexibility in cold conditions); pigtail lead wires;
stainless steel (316), M8 connector located 25 cm from sensor head
4 years against defects in materials and workmanship
-2
(net longwave irradiance)
-23.5 to 23.5 mV
Less than 1 %
Less than 1 %
Less than 0.5 s
150°
5 to 30 µm
-2
Less than 10 W m
-2
Less than 5 W m
Less than 0.5 %
± 5 %
6
SL-610-SS
100 g