CVF 3 VENTILATION UNIT
•Improves stability of measurements
•Easy to install and low maintenance
•Pulse output to monitor performance
CVF 3 is designed to be used with Kipp & Zonen’s:
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CMP 6, 11, 21 and 22 pyranometers
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CGR 4 pyrgeometer
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CUV 4 total UV radiometer
Ventilation of radiometers improves the reliability and accuracy of the measurement by reducing dust, raindrops and dew on the dome. With thermopile-based instruments ventilation stabilises the temperature of the radiometer and suppresses thermal offsets. The integrated heater can be used to disperse precipitation and melt frost.
CVF 3 is a low maintenance ventilation unit. The only part that needs maintenance is the removable air inlet filter, which should be checked at regular intervals and cleaned or replaced when necessary.
When required, two levels of integrated heating can be switched on.
- 5 Watt heating, under normal conditions, to raise the temperature of the dome slightly above ambient to prevent the formation of dew and frost
- 10 Watt heating, for more extreme climates, melts snow and ice
CVF 3 replaces the successful and widely used CV 2 ventilation unit. The CVF 3 has a 5 V pulse output to monitor the fan performance and a waterproof connector for easy installation.
CVF 3 can be mounted on the 2AP and SOLYS 2 sun trackers and the CM 121C shadow ring.
For more information or to make an enquiry please contact us.
Product Specification
| Power supply | 12 VDC, 1.3 A (with 10 W Heater) |
| Operating temperature range | -40 to +70 °C |
| Ventilation power | 5 W Continuously |
| Heating power | 5 W and 10 W |
| Heater induced offset | < 1W/m² (with CMP 11 Pyranometer) |
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Designed and created by Mark Redgrave
©Equinox Instruments Ltd 2010