The CMP11 legacy pyranometer, manufactured by Kipp & Zonen, is an ISO secondary-standard pyranometer that monitors solar radiation for the full solar spectrum range. It connects directly to a Campbell Scientific data logger and is well-suited for meteorological networks and solar-energy research and development. In solar-energy meteorological stations, the CMP11 has been replaced by the CMP10.Read More
The CMP11 measures solar radiation with a high-quality blackened thermopile protected by two glass domes. Its flat spectral sensitivity, from 285 to 2800 nm, makes it ideal for applications in natural sunlight, under plant canopies, in green houses or buildings, and inverted to measure reflected solar radiation.
A desiccant-filled drying cartridge prevents dew from forming on the inner sides of the CMP11's domes. Campbell Scientific also offers the CVF4 heater/ventilator that keeps its domes free from ice and dew.
The CMP11 includes a white snap-on sun shield that reduces the sensor's temperature. A bubble level and adjusting leveling screws enable the sensor to be leveled without using a leveling base.
The CMP11 produces a millivolt signal that is measured directly by a Campbell Scientific datalogger.
|Sensor||High-quality blackened thermopile protected by two glass domes|
|Measurement Description||Monitors solar radiation for the full solar spectrum range|
|ISO Classification||Class A (secondary standard)|
|Spectral Range||285 to 2800 nm|
|Sensitivity||7 to 14 µV/W/m2|
|Temperature Dependence of Sensitivity||< 1% (-10° to +40°C)|
|Response Time||< 5 s (95% of final value)|
|Zero Offset Due to Thermal Radiation||< 7 W/m2 (200 W/m2)|
|Non-Stability||< 0.5% (change/year)|
|Non-Linearity||< 0.2% (0 to 1000 W/m2)|
|Directional Error||< 10 W/m2 (up to 80° with 1000 W/m2 beam)|
|Tilt Error||< 0.2%|
|Impedance||10 to 100 Ω|
|Operating Temperature Range||-40° to +80°C|
|Typical Signal Output||0 to 15 mV (for atmospheric applications)|
|Maximum Irradiance||4000 W/m2|
|Expected Daily Uncertainty||< 2%|
|Dome Diameter||5 cm (2 in.)|
|Width||15 cm (5.9 in.) with shield|
|Height||9.25 cm (3.64 in.)|
|Weight||0.9 kg (2 lb) with 10.1 m (33 ft) cable|
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
The CMP11 has a bubble level and two leveling feet, which allow it to be leveled without using a leveling base. This pyranometer mounts to a mast, crossarm, or pole (1.0 in. to 2.1 in. OD) via the CM255 or CM255LS mounting stand. The CMP11 should be mounted away from all obstructions and reflective surfaces that might adversely affect the measurement.