RKI Instruments GX-2001 Canadian Version - Manual (Page 38)

38 • Maintenance Model GX-2001 Operator’s Manual
Replacing the Scrubber Filters
1. Verify that the Model GX-2001 is off.
2. Unscrew the two screws that secure the sensor retainer and sensor
cover retainer to the Model GX-2001 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 to gain access to the scrubbers.
5. The charcoal filter disk is located in the CO sensor diffusion port. One
filter disk is used. Two H2S filter disks are also used in the CO sensor
diffusion port. They are installed over the charcoal filter disk.
Two H2S removal filter disks are also located in the combustible gas
diffusion port.
6. When the appropriate scrubber filters have been replaced, reinstall the
sensor cover.
7. Reattach the sensor cover retainer in its original position. It should snap
into place onto the sensor retainer.
8. Replace the two screws that secure the sensor retainer and sensor
cover retainer to the Model GX-2001, which you removed in step 2
above.
H2S Removal Filter
Disk
0 2
RKI
POWER
H 2 S
MODE DISP AIR
CO
H2S Removal Filter Disk
Sensor Cover
HC GX-2001
Sensor Cover Retainer
Charcoal Filter Disk
Figure 9: Removing the Sensor Retainer and Replacing the Scrubber Filters