Kipp & Zonen - Model CMP21 - Pyranometer
From Instruments - Solar - Solar Tracking and PV Soiling
The CMP21 is a high performance research grade pyranometer, and is fully compliant with all ISO 9060:2018 Spectrally Flat Class A performance criteria (highest possible ISO pyranometer performance category). The CMP21 pyranometer is designed for measuring the irradiance (radiant flux, Watt/m²) on a plane surface, which results from the direct solar radiation and from the diffuse radiation incident from the hemisphere above. CMP21 has the same detector as the CMP11 and individually optimized temperature compensation. A standard thermistor sensor is fitted to monitor the housing temperature. Each instrument is supplied with its own temperature and directional (cosine response) test data. It is the choice for scientific use and in top level solar radiation monitoring networks such as the BSRN (Baseline Surface Radiation Network) of WMO.
Product Details
A waterproof socket is fitted for the signature yellow signal cable, which is available in a range of lengths pre-wired to the waterproof plug. The integral bubble level is raised to the top of the housing and can be viewed without removing the redesigned snap-on sun shield, which also covers the connector. The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets. The pyranometer does not require any power as it supplies a low voltage of 0 to 20 mV in relation to the amount of incoming radiation. When a higher voltage level or a 4 to 20mA signal is required, the AMPBOX is the perfect solution.
Benefits
ISO / IEC classification
ISO 9060 spectrally flat Class A, with ISO / IEC 17025 calibration.
Minimized maintenance
Best MTBF with 5 years warranty.
CMP series with the world's largest installed base
Well known for high quality, durability and accuracy. The CMP pyranometers require no power, so are ideal for remote sites.
Specifications
Technical Attributes
- Analog Outputs: 0 - 20 mV
- Cable Length: 33, 82, 164, 330 ft (10, 25, 50, 100 m)
- Classification: Spectrally Flat Class A (ISO 9060:2018)
- Digital Outputs: N.A.
- Directional Response: ˂ 10 W/m² (up to 80 ° with 1000 W/m² beam)
- Drying Cartridge and Maintenance Interval: External, replacement after approx. 6 months
- IP Rating: IP68
- Irradiance Saturation: 4000 W/m² (Max.)
- Material Enclosures: Aluminum, anodised
- Non-linearity: ˂ 0.2 % (0 - 100 W/m²)
- Non-stability: ˂ 0.5 % (change/year)
- Operating Humidity: 0 - 100 %
- Operating Temperature Range: -40 - +176 °F (-40 - +80 °C)
- Response Time: ˂ 1.7 s (63 %), ˂ 5 s (95 %)
- Sensitivity: 7 - 14 µV/W/m²
- Spectral Accuracy: 285 - 2800 nm
- Temperature Correction: ˂ 1 %: -4 - +122 °F (-20 - +50 °C)
- Weight: 1.3 lb (600 g)
- Zero offset A: ˂ 7 W/m²
- Zero offset B: ˂ 2 W/m²
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