Casella CEL Microdust Pro real time dust monitor - Manual (Page 41)

MicroDust Pro Aerosol Monitoring System
41 Casella CEL
6.2 Aspirator unit
The fan-driven aspirator unit, shown in Figure 22, can be used to draw all
suspended particulate matter through the probe, provided there is no back
pressure.
Figure 22. Aspirator unit
1 Fan aspirator 5 Thumb screw
2 Adapter block 6 MicroDust sampling probe
3 Locating spigot 7 Measuring chamber inlet
4 Inlet tube 8 O-rings
The fan aspirator (1) and the inlet tube (4) are push-fitted into the adapter
block (2). When assembling these units, it is important to prevent damage to
the O-rings.
The complete aspirator unit is located and secured to the sampling probe (6),
with the locating spigot (3) engaging the measuring chamber inlet (7).