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Description
External Components
This section describes the sample-draw detector’s external components.
Housing
The sample-draw detector’s fiberglass housing is weather- and corrosion-resistant. It is
suitable for installation where general purpose equipment is in use.
The housing door is hinged on the left side and is secured by two latches on the right side. The
flowmeter and status LEDs are visible through a window in the housing door.
Four mounting feet are attached to the back of the housing (one at each corner). Use the
mounting feet to install the housing to a vertical surface.
Sample Fittings
The sample fittings are located on the left side of the bottom of the housing. The inlet fitting is
near the front of the housing and the exhaust fitting is near the back of the housing. The
sample fittings accept 1/4 in. rigid tubing. See the Installation section on page 14 to connect
tubing to the sample fittings.
Particle Filter
A particle filter with a tubing stub on one end is shipped with the instrument but it is not
factory installed. If the particle filter is installed directly to the inlet fitting, the tubing stub
must be used. If the particle filter is installed somewhere else, like at the end of the inlet line,
the tubing stub can be used or removed.
Conduit Hub
One 3/4 NPT conduit hub is located on the right side of the bottom of the housing. It is used
for routing wiring into the housing by using conduit or an appropriate cable bushing.
