RKI Instruments GX-2009 Manual - Manual (Page 67)

GX-2009 Operator’s Manual Maintenance • 62
Replacing the Scrubber Filters
WARNING: Replace the scrubber filters in a non-hazardous
environment.
1. Verify that the GX-2009 is off.
2. Unscrew the two screws that secure the sensor retainer and sensor
cover retainer to the GX-2009 and remove them.
3. Using a small flat blade screwdriver, gently pry each side of the sensor
cover retainer away from the sensor retainer.
4. Remove the sensor cover and sensor retainer gasket to gain access to
the scrubbers.
5. The charcoal filter disk is located in the CO sensor diffusion port. One
filter disk is used.
One H
2
S removal filter disk is located in the combustible gas diffusion
port.
6. When the appropriate scrubber filters have been replaced, reinstall the
sensor retainer gasket and sensor cover.
POWER
MODE
Sensor Cover
Sensor Cover
Retainer
AIR
Sensor Retainer
Gasket
H 2 S CO %LEL O 2
RKI GX-2009
H2S Removal
Filter Disk
Charcoal
Filter Disk
Figure 23: Removing the Sensor Retainer and Replacing the Scrubber Filters