APPENDIX O. RIGID MOUNTING ASSEMBLY
Introduction
The original PQ167 utilized a tripod assembly, which held the PQ100 pump in a
swinging cradle. This assembly, now designated PQ167S, is detailed in Figures 4, 5,
and 6. A new, improved rigid assembly is available designated PQ167R. Details of
this new assembly are shown in Figures O.1 and O.2. (January 2000: Only PQ167R
is now in production.)
Description
The inlet is still maintained at a height of two meters above the ground, with the filter
holder plugged directly into the bottom of the PM10 inlet, as previously done.
An outlet cap for the bottom of the filter holder has been designed which is similar to
the EPA L30 component with the addition of an AO@ ring. This allows the filter
holder to be placed onto a down tube which is a longer version of the EPA designed
L19 component. Inasmuch as particulate matter is removed from the air stream prior
to passage through the tube its increased length is not a consideration.
The downtube slips over a support member welded into a plate, which serves
multiple functions. The support member serves as a water trap and is fitted with the
same drain valve as is used in the PQ200 water trap. The support plate has a
rectangular slot into which the PQ100 pump module can be placed, this supports the
PQ100 at waist height for ease of use. Three stub legs are welded to the bottom of
the support plate, which permits the attachment of 3 legs, which are interchangeable
with the legs on the PQ200.
To Next Page
Loading...
Need help?
General