08354B DCN7877
Teledyne API T640 PM Mass Monitor
27
INDOOR/OUTDOOR INSTALLATION
The T640 can be installed in an indoor or outdoor shelter with roof penetration or
in an outdoor enclosure. You may wish to watch an installation video, available at
https://www.youtube.com/watch?v=8H5NmNgBg1M
rooftop installation). Also review Figure 2-7 through Figure 2-15 in the preceding
sections as well as Figure 2-20 through Figure 2-21 for the instructions in this
section.
SHELTER INSTALLATION WITH ROOF PENETRATION
1.
Determine the location at which the T640 will operate in the shelter.
•
The instrument should be in a location where the top of the ASC will be
no less than two feet from the top of the ceiling/roof line or,
•
The instrument should be placed at a height within the shelter so that
after the ASC and 8’ extension sample line are installed, the inlet (on top
of the 8’ extension sample line) is 2-m above the roof and equal height
with any other PM instrument inlets. (In situations where the extension
tube is too long, it can be cut to proper length).
2.
Drill a hole in the roof to accommodate the diameter of the 8’ extension
sample line (5/8” OD for the T640, and 1” OD for the 640x). A second hole
can be drilled to accommodate the ambient temperature sensor cable (1/4”)
or it can be routed through a hole in a wall.
3.
Install the provided roof flange over the drilled sample tube hole and repeat
with the ¼” hole, if present.
•
Make sure to use good quality roof sealant for the base of the roof flange
to ensure weather tightness and to prevent any leaks into the shelter.
4.
Without locking it down, setup the sample line tripod so that its sample line
hole aligns with the hole in the roof.
•
The tripod should be setup at such a height to properly support the
sample line with the inlet on top.
5.
Without the inlet installed on the top of the ASC, line up the instrument so
that the opening at the top of the ASC is in-line with the sample line hole/roof
flange on the shelter roof.
IMPORTANT
IMPACT ON READINGS OR DATA
Ensure that no debris enters the top of the ASC.
Note
The purpose of the Slip Coupler is to allow the extension tube to
be disconnected from the instrument without disassembling the
roof flange. With the Slip Coupler in the up position, the
instrument can be moved forward or to the side for maintenance
or verification procedures such as the PMT adjustment
procedure described later in this manual. The Slip Coupler
should be covering the junction of the two tubes during normal
operation.