Installation • 15
2. Close and latch the housing door.
NOTE:
The sample-draw detector is shipped with the mounting feet “tucked under” the
housing to protect the mounting feet during shipment.
3. Slightly loosen the screw that secures the mounting foot to the housing, then rotate the
mounting foot 180 degrees (see Figure 5).
4. Tighten the screw that secures the mounting foot to the housing.
5. Repeat steps 3 and 4 for the remaining three mounting feet.
6. Position the sample-draw housing on a vertical surface at eye level (4 1/2 to 5 feet from
the floor).
7. Insert 1/4 inch screws through the slots in the mounting feet to secure the housing to the
mounting surface.
Connecting the Sample Lines to the Sample-Draw Detector
See Figure 7 for the fitting layout.
Installing the Inlet Line with Particle Filter Connected to the Inlet
Fitting
1. Loosen the nut on the inlet fitting until 3 threads are visible.
2. Push the particle filter’s tubing stub into the inlet fitting until it stops. Be sure the arrow on
the particle filter is pointing toward the inlet fitting.
3. Hand tighten the nut on the inlet fitting so the ferrules clamp on the tubing. If the tube nut
is removed, see Figure 7 for the arrangement of the fitting components.
4. Connect a length of sample tubing to the other side of the particle filter and route it to the
sampling area. 1/4” O.D. rigid polypropylene, Teflon, or flexible polyurethane tubing may
be used. RKI Instruments, Inc. recommends using either 1/4” O.D. x 1/8” I.D. or 1/4”
O.D. x 0.170” I.D. tubing based on your length requirements. See “Specifications” on
page 5 for maximum tubing lengths based on tubing size.
CAUTION:
If you use flexible sample tubing (polyurethane is acceptable), use an
appropriate insert if necessary to provide support to the tubing and ensure a
good seal when connecting to the flexible stub on the filter.
CAUTION:
Avoid loops or slumps in the incoming sample line. To reduce response time,
keep the incoming sample line as short as possible.
