14 • 35-3001A-13-XX CO
2
/CO Sample-Draw Detector
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.
Installing the Inlet Line without Particle Filter Connected to the Inlet Fitting
1. Loosen the nut on the inlet fitting until 3 threads are visible.
2. Push 1/4” O.D. rigid polypropylene or rigid Teflon sample tubing into the fitting until it stops. Flexible
polyurethane tubing may be used with an appropriate insert. 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 to seal
the connection between the tubing and 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. Route tubing from the inlet fitting to the sample area. See “Specifications” on page 5 for maximum tubing
lengths based on tubing size.
