HiVol 3000 User Manual 1.7 Installation
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2.4.7 Installation of Sample Filter
The filter cassette has two components, an upper and a lower
section. The lower section has a mesh screen which supports the
sample filter.
At the sampling site unlock and open the upper door. Undo the
thumb-screws securing the front of the sampler inlet. Raise the
sampler inlet and remove the filter cassette. Separate the upper and
lower parts of the cassette and install a filter in the centre of the
lower cassette. Re-assemble the cassette and install the loaded
cassette on the top plate of the HiVol between the locating brackets.
The sampler inlet should then be lowered and secured using the
thumb-screws. Apply slight downward pressure to the lid while
tightening the thumb-screws. This ensures a good seal on the
cassette.
Note: Filter installation should not be attempted
during adverse weather conditions. Filters should be
loaded into the cassette in a clean environment and
must be handled with care.
Filters can be pre-loaded into the filter cassette and transported to
the sampling site in a protective container eg zip-lock bag.
Figure 11. Installing the loaded filter cassette