Access Sensor Technologies UPAS User Guide 13
Cleaning the UPAS
Cleaning the Outer Housing
Clean the outside of the UPAS Sampler with a soft, slightly dampened lint-free
cloth. It is safe to use either a detergent or soap solution or ethanol or isopropyl
alcohol on the cloth. Do not use any other chemical solvents.
Cleaning the Cyclone Inlet
Wash and rinse the individual inlet pieces under clean running water. If clean
running water is not available, use bottled water from a spray bottle. Use a
detergent such as dish soap. Alternately, use ethanol or isopropyl alcohol. Do not
use any other chemical solvents.
Select one or more different small, soft-bristled brushes that can reach all the
internal surfaces of the inlet. Specifically, one which can reach the end of the
pointed conical chamber cavity of the cyclone cap. See the following photos.
Most particulates can be easily observed, they have a light brown or gray
coloration and show up well against the black UPAS components.
Clean all internal and external surfaces of the outer Cyclone Inlet cap and inner
Cyclone Insert before every use of the UPAS.
1 Unscrew and remove the Cyclone Inlet Cap from the body of the UPAS
Sampler.
2 With a small flat screwdriver, key, coin, etc., gently pry the inner Cyclone
Insert from the outer Cyclone Inlet.
Cyclone Inlet Cap
(bottom side)
Cyclone Insert
(bottom)
Inspect and clean the
Cyclone Insert O-Rings
(top and bottom)
Foam tipped brush
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