The ventilation unit ACCH0-VENTIL5 is for use with pyranometers and pyrgeometers.
It prevents from dew and frost formation thanks to two heaters on board and provides an air flow over the instrument body and dome. It improves the measurement accuracy by reducing offsets. The pyranometer is not included in this article.
Compatible instruments : PYRH0-020P00, PYRH0-020R00, PYRH0-0STIN, PYRH0-022P00, PYRH0-022R00, PYRH0-025P00, PYRH0-025R00, PYGH0-TRV, PYGH0-20P0, PYGH0-20R0.
Increase of air temperature : 0,5 °C at 0 W heating, 1,0 °C at 5 W heating, 1,5 °C at 10 W heating
Zero offset reduction : 50 % at 0 W heating, -2 W/m² at 5 W heating, -4 W/m² at 10 W heating
Cable resistance : 0,3 ohm/m (2 x 0.15 ohm/m)
Voltage drop at 10 W heating power : 0,12 V/m
Footprint diameter : 0,17 m
More information : Our website BLET
