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MQ-500 Full Spectrum Quantum Meter (0 to 4000 µmol m-2 s-1)
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Cosine Response
This cosine-corrected sensor is designed to maintain its accuracy when radiation comes from low zeith angles. The sensors measure PPFD with a cosine response accurate within ± 5 % at 75 ° zenith angle.
Refined Spectral Response
The improved spectral response of the MQ-500 increases the accuracy of LED measurements making it ideal for use with both natural and electric light sources.
Rugged Design
Head is potted-solid making it submerisble and suitable for use in all climate conditions.
Reliable Accuracy
To ensure accuracy each sensor iscarefully calibrated in controlled conditions and traceable to NIST reference standards.
- Calibration Uncertainty: ± 5 %
- Measurement Range: 0 to 4000 µmol m-2 s-1
- Measurement Range: 0 to 4000 µmol m-2 s-1
- Measurement Repeatability: less than 0.5 %
- Long-term Drift: less than 2 % per year
- Non-linearity: less than 1 % (up to 4000 µmol m-2 s-1)
- Response Time: less than 1 ms
- Filed of View: 180°
- Spectral Range: 389 to 692 nm ± 5 nm (wavelengths where response is greater than 50 % of maximum)
- Spectral Selectivity: less than 10 % from 412 to 682 nm ± 5 nm
- Directional (Cosine) Response: ± 5 % at 75 ° zenith angle
- Azimuth Error: less than 0.5 %
- Tilt Error: less than 0.5 %
- Temperature Response: -0.11 ± 0.03 % C-1
- Uncertainty in Daily Total: less than 5 %
- Detector: blue-enhanced silicon photodiode
- Housing: anodized aluminum body with acrylic diffuser
- IP Rating: IP68
- Operating Environment: 0 to 50 C; less than 90 % non-condensing relative humidity up to 30 C; less than 70 % non-condensing relativity humidity from 30 to 50 C; seperate sensors can be submerged in water up to depths of 30 m
- Meter Dimensions: 126 mm length; 70 mm width; 24 mm height
- Sensor Dimesions: 24 mm diameter; 37 mm height
- Mass: 100 g (with 5 m of lead wire)
- Cable: 2 m of shielded, twisted-pair wire; additional cable available; santoprene rubber jacket
- Warranty: 4 years against defects in materials and workmanship
- The Sensor measures:
- Quantum Light Meter
- Cable Length:
- 2m
- Sensor IP Rating
- IP68
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