CMS-4 IN-HELMET CARBON MONOXIDE MONITOR
Page 22
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 29872
6.2.8
Install a new charcoal filter. It should be seated
and recessed in the center of the sensor gasket.
6.2.9
Install a new white hydrophobic filter. It should
be seated and recessed in the sensor gasket and should
not overlap the edge of the sensor gasket.
6.2.10
Clip the sensor retainer over the filters and
sensor gasket and tighten its screw.
6.2.11
Calibrate the new sensor, as described in
Section 5.7: Calibrating the CMS-4.
6.3
Replacing the Charcoal Filter ‒ Figure 31
NOTE: Replace the charcoal filter in a clean,
nonhazardous environment.
6.3.1
Make sure the monitor is turned OFF.
6.3.2
Use a small Phillips screwdriver to unscrew the
sensor-retainer screw.
6.3.3
Remove the sensor retainer.
6.3.4
The white hydrophobic filter and the sensor
gasket should stay on the sensor.
Figure 31
6.3.5
Remove the white hydrophobic filter.
6.3.6
Remove the old black charcoal filter from the
center of the sensor gasket.
6.3.7
Install the new charcoal filter. It should be
seated and recessed in the center of the sensor gasket.
6.3.8
Reinstall the white hydrophobic filter. It should
be seated and recessed in the sensor gasket and should
not overlap the edge of the sensor gasket.
6.3.9
Clip the sensor retainer over the filters and
sensor gasket, and tighten its screw.
6.4
Replacing the Hydrophobic Filter ‒ Figure 32
NOTE: Replace the hydrophobic filter in a clean,
nonhazardous environment. Replace the charcoal filter
when replacing the hydrophobic filter.
6.4.1
Make sure the monitor is turned OFF.
6.4.2
Use a small Phillips screwdriver to unscrew the
sensor-retainer screw.
6.4.3
Remove the sensor retainer.
6.4.4
The white hydrophobic filter and the sensor
gasket should stay on the sensor.
6.4.5
Remove the old hydrophobic filter.
6.4.6
Remove the old black charcoal filter from the
center of the sensor gasket. We recommend changing
the charcoal filter when changing the hydrophobic filter.
Figure 32
6.4.7
Install the new charcoal filter. It should be
seated and recessed in the center of the sensor gasket.
6.4.8
Install the new hydrophobic filter. It should be
seated and recessed in the sensor gasket and should
not overlap the edge of the sensor gasket.
6.4.9
Clip the sensor retainer over the filters and
sensor gasket, and tighten its screw.
Sensor Retainer
Hydrophobic Filter (white)
Sensor-Retainer Screw
Sensor Gasket with Charcoal Filter
Sensor Retainer
Hydrophobic Filter (white)
Sensor Gasket
Sensor-Retainer Screw
Charcoal Filter (black)