SPECIFICATIONS
Calibration Traceability
Apogee MQ series quantum meters are calibrated through side-by-side comparison to the mean of four transfer
standard quantum sensors under a reference lamp. The reference quantum sensors are recalibrated with a 200 W
quartz halogen lamp traceable to the National Institute of Standards and Technology (NIST).
MQ-510
Calibration Uncertainty
± 5 % (see calibration Traceability below)
Measurement Range
0 to 4000 µmol m
-2
s
-1
Measurement
Repeatability
Less than 0.5 %
Long-term Drift
(Non-stability)
Less than 2 % per year
Non-linearity
Less than 1 % (up to 4000 µmol m
-2
s
-1
)
Response Time
Less than 1 ms
Field of View
180°
Spectral Range
389 to 692 nm ± 5 nm (wavelengths where response is greater than 50 %)
Spectral Selectivity
Less than 10 % from 412 to 682 nm ± 5 nm (see Spectral Response below)
Directional (Cosine)
Response
± 5 % at 75° zenith angle (see Cosine Response below)
Azimuth Error
Less than 0.5 %
Tilt Error
Less than 0.5 %
Temperature Response
-0.11 ± 0.04 % per C
(see Temperature Response below)
Uncertainty in Daily Total
Less than 5 %
Detector
Blue-enhanced silicon photodidode
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; separate sensors can be submerged in water up
to depth of 30 m
Meter Dimension
126 mm length; 70 mm width; 24 mm height
Sensor Dimensions
24 mm diameter; 37 mm height
Mass
100 g (with 5 m of lead wire)
Cable
2 m of two conductor, shielded, twisted-pair wire; additional cable available; TPR jacket
