CMP11 Pyranometer
CMP11 PyranometeCMP11 Pyranometerr
CMP11 Pyranometer
CMP11 Pyranometer
CMP11 Pyranometer
CMP11 Pyranometer
CMP11 Pyranometer
CMP11 Pyranometer CMP11 PyranometeCMP11 Pyranometerr CMP11 Pyranometer CMP11 Pyranometer CMP11 Pyranometer CMP11 Pyranometer CMP11 Pyranometer
CMP11 Pyranometer

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 greenhouses 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 levelling screws enable the sensor to be levelled without using a levelling base.

The CMP11 produces a millivolt signal that is measured directly by a Campbell Scientific data logger.

Benefits and Features

  • Detector design and faster response make it a step above the CMP6
  • Compatible with most Campbell Scientific data loggers
  • An integrated bubble level is visible without removing sun shield
  • Desiccant-filled drying cartridge prevents dew from forming on the inner sides of the domes
  • Compatible with the CVF4 heater/ventilator that keeps the domes free from ice and dew
  • Measures reflected solar radiation when inverted
  • Provides measurements in direct sunlight, under plant canopies, when the sky is cloudy, and in artificial light

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 In solar-energy meteorological stations, the CMP11 has been replaced by the CMP10.

  • CMP11 Pyranometer 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.
  • Heater/ventilator that keeps its domes free from ice and dew.
  • 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.
  • 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%
Level Accuracy 0.1°
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

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