TSI Instruments SidePak AM520, User Manual

Page: 66 / 98

Chapter 4 50
Cleaning the Diesel Particulate Matter DPM Cyclone
The DPM Cyclone should be cleaned prior to each use. In most cases,
simply cleaning the grit potentiometer is all that is needed. Inspect the
inside of the cyclone body regularly and clean it if necessary.
1. Unscrew the grit potentiometer from the bottom of the cyclone.
Remove the stainless steel cyclone clip and pull the cap off.
2. Hold the open end of the grit potentiometer down and tap it on a
hard surface to dislodge particles. Repeat with the cyclone body.
N O T I C E
If dirt is visible inside either the grit potentiometer or the cyclone
body, it may be necessary to blow canned/pressurized air into the
cyclone parts and/or to clean them with soap and water. A mild
solvent like isopropanol may also be used inside the cyclone. Make
certain that the cyclone is perfectly dry before re-assembly and use.
3. Re-assemble the cyclone.
Note that the stainless steel
cyclone clip that holds the cap
onto the body will only fit
one way.
The cyclone cleaning procedure
is now completed.
Exploded View of
0.8 µm DPM Cyclone