Campbell CMP11, Instruction Manual

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CMP6, CMP11, and CMP21 Pyranometers
be used in a wireless sensor network. Please note that this option is
not available for the CMP21.
5.2 Construction
The pyranometers consist of a thermopile sensor, housing, two glass domes,
and cable. The thermopile is coated with a black absorbent coating. The paint
absorbs the radiation and converts it to heat. The resultant temperature
difference is converted to a voltage by the copper-constantan thermopile. The
thermopile is encapsulated in the housing in such a way that it has a field of
view of 180 degrees and the angular characteristics needed to fulfill the cosine
response requirements.
6. Specifications
Features:
• Double glass dome
•
Integrated bubble level is visible without removing sun shield
• Measures reflected solar radiation when inverted
• Desiccant-filled drying cartridge prevents dew from forming on the
inner sides of the domes
•
Provides measurements in direct sunlight, under plant canopies, when
the sky is cloudy, and in artificial light
•
Compatible with Campbell Scientific CRBasic dataloggers: CR6,
CR200(X) series, CR800 series, CR1000, CR3000, CR5000, and
CR9000(X).
6.1 Pyranometers
Dimensions are shown in FIGURE 6-1 and the other specifications are
provided in TABLE 6-1 .
FIGURE 6-1. Dimensions of the CMP6, CMP11, and CMP21
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