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Extended operation information
Different inlet options
The partectorTEM comes with a standard inlet – a 6mm tube fitting with a
steel mesh. You can use either this or you can add a cyclone in front of
the tube inlet to remove coarse particles. The internal pump cannot
support high pressure drops, so you should not use an impactor.
The partectorTEM is a miniature instrument with an extremely
sensitive internal electrometer. Fibers or dust particles which
are larger than about 1mm in size can produce short circuits in
the instrument. Therefore, the tube inlet has a steel mesh to
prevent really coarse dust particles or small insects from entering the
instrument. If you do not use the inlet, you risk aspirating coarse dust that
may result in a deteriorated instrument performance.
We recommend the use of a cyclone if you are measuring in environments
where a large number of coarse particles are present. For example, the
SKC
GS-3
cyclone
would
be
useful
for
this
purpose.
http://www.skcinc.com/prod/225-100.asp
If you are certain that you have no coarse particles in your air (which is
normally the case in ambient air), then you can also use the tube inlet.
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