LPUVA02
- 11 -
V2.0
6
MAINTENANCE
In order to grant measurements high accuracy, it is important to keep the glass dome
clean. Consequently, the more the dome will be kept clean, the more measurements
will be accurate.
You can wash it using water and standard papers for lens. If necessary, use pure
ETHYL alcohol. After using alcohol, clean again the dome with water only.
Because of the high temperature changes between day and night, some condensation
might appear on the radiometer dome. In this case the performed reading is highly
over-estimated. To minimize the condensation, the radiometer is provided with a car-
tridge containing dessicant material (silica-gel). The efficiency of the silica-gel crystals
decreases over time while absorbing humidity. Silica-gel crystals are efficient when
their colour is
yellow
, while they turn
white/translucent
as soon as they lose their
efficiency. Read instructions at chapter 3 about how to replace the silica-gel crystals.
Silica-gel typical lifetime goes from 2 to 6 months depending on the environment
where the radiometer works.
To exploit all the radiometer features, it is highly recommended that the calibration be
checked annually.
