High Volume Air Sampler
SNOW WHITE
JL-900 SNOW WHITE is a high volume air sampler. It′s ment for hard, continuous
outdoor use. The baseframe structure is so strong that whole unit can easily be
installed even on four rocks if neccessary. For installation just connect the mains
cord and start sampling.
SNOW WHITE is very easy to use and in the designing work users opinions were
listened carefully. Pump control can be made with frequency converter thus giving
possibility for changing volume flow. Panel meters are microprocessor based and
they do all neccessary calculations that you need; total volume and total time.
Air volume is calculated from pressure difference
over calibrated orifice, also in carbon line. Carbon
line is equipped with valve, so it can be closed
totally.
Pressure drop when using Whatman GF/A glass
fiber filter is c.10.000 Pascals. Maximum efficiency of the
pump is 20.000 Pascals so there is lots of reserve power
to hold volume flow stable even when filter gets filled.
Filter cassette, which is made of aluminium, can be loaded
already in laboratory thus avoiding problems with rain and
wind outside.
Pipes and supporting frames are made o f stainless steel
which is electrochemically polished after fabrication.
GRP, glass reinforced plastic, covers are thick enough
to withstand even small flying stones or hammering.
GM-probes can be installed to measure radiation
concentration on filter.They can be used for emergency
preparedness purposes; early warning system.