Honeywell CM4, Technical Handbook

Page: 32 / 202

CM4 Four-Point Continuous Monitor
CM4 Technical Manual 3-10
3.6.2 Tubing Connections
To prepare for installation of sample lines, remove the FEP Teflon
tubing (3/16 inch I.D. x 1/4 inch O.D.) from the Installation Kit. The
back of the unit includes five connections:
1 Sample Inlet - Point 1 4 Sample Inlet - Point 4
2 Sample Inlet - Point 2 5 Exhaust
3 Sample Inlet - Point 3
NOTE:
Always perform a leak check after installing all sample lines.
See Appendix B .
RELAY WIRING
COM LOW-VOLTAGE
WIRING Printer
3 3
3 3
4
3
2
1
5
Figure 3-7: Tubing Connections
Legend
1 Sample Inlet - Point 1 4 Sample Inlet - Point 4
2 Sample Inlet - Point 2 5 Exhaust
3 Sample Inlet - Point 3
3.6.3 Sample Line Inlet Connections
Each inlet has a quick connect/disconnect fitting with an internal
O-ring and an external grab ring. To install a tube into a sample
line inlet, insert the tube far enough into the fitting to ensure that
the tube has passed through both the external grab ring and the
internal O-ring and is firmly seated against the stop. The insertion
depth for a correctly installed sampling line is 1/2 inch to 5/8 inch
(12-16 mm). Verify the insertion depth by holding the tube and marking
with your thumb where it emerges from the fitting. Remove the tube
to measure the insertion depth.
CAUTION
Improper installation of the tube into the connector results in dilution
of the sample.
3.6.4 Point Legend
1
2
3
4
STATUS ALARM
!
LOCATION
Figure 3-9: Point Legend
To keep track of the location corresponding to each point, the CM4
front panel contains an area to the right of the status and alarm LEDs
for point identification. Write the name of each location on the area
next to the point alarm LED on the control panel. Use a fiber-tipped
permanent marker.
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