CVF4 Pyranometer Ventilator
The Kipp and Zone CVF4 pyranometer ventilator is a low power, low maintenance ventilation unit. The CVF4 creates and airflow creates and airflow around the pyranometer or radiometer to help stabilise and maintain the unit’s temperature.
The CVF4 ventilation unit creates a unique airflow over the top of the pyranometer dome. The flow is very high and it swirls to improve the air distribution. The position of the heaters and the new cover material ensures that only half the heating power is needed to melt frost and snow compared to older ventilation units.
CVF4 is designed to be used with Kipp & Zonen’s:
The CVF4 can also be used in combination with 2AP and SOLYS2 sun trackers and the CM121C shadow ring.
Note that when installing a CVF4 ensure that the correct mounting plate is used. It is possible to fit ventilators to albedometers to improve their performance
|12 ± 1 VDC
|Operational temperature range
|-40 to +70 °C
|6.3 W (continuously)
|7 W (when required)
|Heater induced offset
|< 1W/m² (with CMP pyranometers)
|Zero offset a) reduction
|50% (with double-dome C/SMP pyranometers)
|C/SMP6, 10, 11, 21, CMP22; C/SGR4; C/SUV C/SMP3 and C/SGR3 with reduced performance
|Ingress Protection (IP) rating