Apogee Instruments SQ-620-SS Посібник користувача - Сторінка 6
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SPECIFICATIONS
Power Supply
Sensitivity
Calibration Factor
Calibration Uncertainty
Measurement Range
Measurement
Repeatability
Calibrated Output Range
Long-term Drift
(Non-stability)
Non-linearity
Response Time
Field of View
Spectral Range
Directional (Cosine)
Response
Azimuth Error
Tilt Error
Temperature Response
Uncertainty in Daily Total
Housing
IP Rating
Operating Environment
Dimensions
Mass
Cable
Warranty
Calibration Traceability
Apogee Instruments SQ-600 series PFD sensors are calibrated through side-by-side comparison to the mean of four
transfer standard PFD sensors under a reference lamp. The transfer standard PFD sensors are recalibrated with a
quartz halogen lamp traceable to the National Institute of Standards and Technology (NIST).
± 5 % (see Calibration Traceability below)
340 to 1040 nm ± 5 nm (wavelengths where response is greater than 50 %; see Spectral
± 2 % at 45° zenith angle, ± 5 % at 75° zenith angle (see Directional Response below)
Anodized aluminum body with acrylic diffuser
-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m
5 m of two conductor, shielded, twisted-pair wire; TPR jacket; pigtail lead wires; stainless steel
(316), M8 connector located 25 cm from sensor head
4 years against defects in materials and workmanship
SQ-620-SS
Self-powered
0.05 mV per µmol m
-2
-1
20 µmol m
s
per mV
-2
0 to 4000 µmol m
Less than 0.5 %
0 to 200 mV
Less than 2 % per year
Less than 1 % (up to 4000 µmol m
Less than 1 ms
180°
Response below)
Less than 0.5 %
Less than 0.5 %
-0.11 ± 0.04 % per C
Less than 5 %
IP68
30.5 mm diameter, 36.6 mm height
140 g (with 5 m of lead wire)
-2
-1
s
-1
s
-2
-1
s
)