Instruction Manual

6
5. Place a single MultiDust Foam Disc for
respirable sampling (Cat. No. 225-772) into
the inlet of the casse e top so that it sits just
below the rim (Figure 7). Ensure that it is
not creased and there are no gaps between
it and the casse e wall.
Note: The foam disc is larger than the
inlet; therefore, it must be compressed
evenly to fi t properly.
6. Insert the casse e top containing the foam
disc into the casse e bo om ensuring the
fi lter is in place (see Filter Casse e: Opening,
Installing Filter, and Closing).
7. Re-weigh the entire assembly and record pre-weight #2. If the casse e cover is
included in this operation, reference it to the casse e with a number or le er. It
is recommended that the casse e cover remain in place until ready to sample.
Transporting Loaded Cassettes
If not ready to sample immediately or if transport-
ing pre-weighed loaded casse es to a sampling
location, place the casse e with cover into the
provided transport clip (Figure 8). Ensure the
casse e cover is in place. An alternative is to insert
the loaded casse e into an IOM housing body and
place the cover on the casse e opening (See Load-
ing a Casse e into the IOM Housing Body and Figure
9). Users may wish to transport loaded casse es
or loaded IOM housing bodies in a sterile plastic
bag depending on the contaminant of interest.
Loading a Cassette into the IOM Housing Body
Reminder: Use powder-free gloves and forceps to handle casse e, fi lter, and foams.
Users may wish to use sterile gloves and forceps depending on the contaminant
of interest.
1. Unscrew front plate from IOM housing body.
2. Ensure the O-rings are positioned correctly (Figures 1, 2, and 3).
3. Insert the casse e into the IOM housing body.
4. Screw the front plate into the housing body. Tighten securely to achieve a good
seal. Install cover on inlet until ready to sample.
Figure 9. Load pre-weighed
cassette into an IOM housing body;
include cover.
Cover
Front
plate
Cassette
assembled
with fi lter
Housing
body
Figure 8. Insert cassette with cover
into transport clip
Foam
insert
Cassette
front
Filter
Cassette
support
grid
Figure 7. Foam inserted into cassette