14 Access Sensor Technologies UPAS User Guide
3 Carefully inspect and clean the inside of the cone in the Cyclone Inlet Cap
with a small soft-bristled brush or pointed foam applicator. Do not use
round-tip cotton swabs or any other brush/swab that is not capable of
reaching the bottom of the pointed conical chamber cavity of the cyclone
cap. Any brush/swab that is too blunt or round may force particulates into
the bottom point. Any particulates remaining at the bottom point of the
cyclone cap chamber can become dislodged during subsequent sampling
runs and contaminate the filter.
4 Clean all surfaces of the Cyclone Insert part. With a small soft brush or a
pointed foam applicator, Make certain the Cyclone Air Inlet hole is not
obstructed, and free of any debris. Use a small, soft bottle brush or pipe
cleaner to clean the Cyclone Air Inlet hole.
If grease was previously used, use isopropyl alcohol or ethanol to remove any
remaining grease residue. Do not use any other chemical solvents.
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