Brochure Ventilation unit

for SR20 and SR22 pyranometers and IR20 pyrgeometers VU01 is a high-quality ventilation unit for use with pyranometers and pyrgeometers. Its purpose is to improve the dependability of the measurement. Measurement accuracy improves, because offsets are reduced. Reliability benefits from mitigation of dew and frost and quick evaporation and sublimation of water and snow. ISO/TR 9901 “Solar Energy—Field Pyranometers—Recommended practice for use” recommends the use of ventilators where high accuracy and reliability are required. Figure 1 VU01 ventilation unit with pyranometer SR20. improves measurement...

Ventilation unit VU01 may be used in combination with Hukx’s SR20, SR22 and SR25 Class A pyranometers and IR20 and IR20WS research grade pyrgeometers. VU01 provides an airflow over the instrument body and dome and has two heaters on board to heat the air. The use of heating (5 W or 10 W) is optional. The VU01 ventilation unit runs on 12 VDC voltage. Using VU01 is easy. The ventilator is generally used continuously; the heater is typically controlled by the data logger. ISO/TR 9901 “Solar Energy—Field Pyranometers—Recommended practice for use” recommends the use of ventilators where high accuracy...

- PV system performance monitoring - scientific meteorological observations - extreme climates (tropical/polar) Pyranometers are subject to classification in three classes according to ISO 9060. Our pyranometer selection guide assists you in choosing the right instrument. Whatever your application is: Hukx offers the highest accuracy in every class at the most attractive price level. - longer cable, in multiples of 5 meters (please note the voltage drop of cabling) - pack of five filters (VU01F)

compatible instruments compliance with standards rated operating power rated operating voltage range rated operating temperature range ISO/TR 9901 BSRN operations manual zero offset a SR20 ventilated cable resistance voltage drop at 10 W heating power footprint diameter standard cable length

About Hukx Hukx is the leading innovator in solar radiation and heat flux sensor technology. We are proud to set the standard in high-accuracy measurement, and to be working at the heart of the energy transition. Customers worldwide rely on our bestselling pyranometers and heat flux sensors. From sensor design and selection to supply and recalibration, we support you across the entire lifecycle. Hukx is headquartered in the Netherlands, with locally owned representative sales offices in the USA, Brazil, India, China, Southeast Asia, and Japan. Let us help you select the best sensor for your application....