Apogee SQ-300 Series Gebruikershandleiding - Pagina 6

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SPECIFICATIONS

Sensitivity: 0.2 mV per µmol m
Calibration Factor: 5.0 µmol m
Calibration Uncertainty: ± 5 % (see Calibration Traceability below)
Measurement Repeatability: < 1 %
Non-stability (Long-term Drift): < 2 % per year
Non-linearity: < 1 % (up to 4000 µmol m
Response Time: < 1 ms
o
Field of View: 180
Spectral Range: 410 nm to 655 nm (wavelengths where response is greater than 50 % of maximum; see
Spectral Response below)
Directional (Cosine) Response: ± 5 % at 75
Temperature Response: 0.06 ± 0.06 % per C (see Temperature Response below)
Operating Environment: -40 to 70 C
Dimensions: SQ-110, -120: 2.4 cm diameter and 2.8 cm height
SQ-313, -316, -323, -326: 50 cm length, 1.5 cm width, 1.5 cm height
SQ-311, -321: 70 cm length, 1.5 cm width, 1.5 cm height
Mass: SQ-100 series: 90 g (with 5 m of lead wire)
SQ-313, -316, -323, -326: 275 g
SQ-311, -321: 375 g
Cable: 5 m of 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
Calibration Traceability:
Apogee SQ series quantum sensors are calibrated through side-by-side comparison to the mean of four
Apogee model SQ-110 or SQ-120 transfer standard quantum sensors under high output T5 cool white
fluorescent lamps. The transfer standard quantum sensors are calibrated through side-by-side
comparison to the mean of at least three LI-COR model LI-190 reference quantum sensors under high
output T5 cool white fluorescent lamps. The reference quantum sensors are recalibrated on a biannual
-2
-1
s
-2
-1
s
per mV (reciprocal of sensitivity)
-2
-1
s
)
o
zenith angle (see Cosine Response below)
0 to 100 % relative humidity
Can be submerged in water up to depths of 30 m
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