Pyrheliometer soiling prevention system
The AirShield® soiling prevention system increases the long-term accuracy of sensor readings and reduces cleaning frequency requirements by providing a constant air barrier to prevent dust and dirt from settling.
A high-performance air blower drives double-filtered compressed air to an injector head that creates an air barrier in front of the sensor. The hose used is flexible and highly UV resistant. This system can be operated with either AC power or solar power.