LI200X Pyranometer
For more theoretical information on the silicon photovoltaic detector see Kerr,
J. P., G. W. Thurtell, and C. B. Tanner: 1967, “An integrating pyranometer for
climatological observer stations and mesoscale networks”,
J. Appl. Meteor.
,
6
,
688-694.
6. Specifications
Features:
•
Calibrated for the daylight spectrum (400 to 1100 nm)
•
Completion circuit in its cable standardizes calibration, allowing
sensors to be interchanged without altering multiplier and offset
values
•
Compatible with Campbell Scientific CRBasic dataloggers: CR6,
CR800 series, CR1000, CR3000, CR5000, and CR9000(X).
Stability
:
< ±2% change over a 1 year period
Response Time:
10 µs
Cosine Correction
: Cosine corrected up to 80
°
Operating
Temperature
:
–40 to 65 °C
Temperature
Dependence
:
0.15% per °C
Relative Humidity
: 0 to 100%
Detector:
High stability silicon photovoltaic detector (blue
enhanced)
Sensor Housing:
Weatherproof anodized aluminum case with acrylic
diffuser and stainless steel hardware
Diameter:
2.38 cm (0.94 in)
Height:
2.54 cm (1.00 in)
Weight:
28 g (1 oz)
Accuracy:
Absolute error in natural daylight is ±5% maximum;
±3% typical
Sensitivity:
0.2 kW m
–2
mV
–1
Linearity:
Maximum deviation of 1% up to 3000 W m
–2
Shunt Resistor:
Adjustable, 40.2 to 90.2
Ω
, factory set to give the above
sensitivity
Light Spectrum
Waveband:
400 to 1100 nm
5
