RKI Instruments GX-2012 Manual - Manual (Page 162)

154 • Replacing a Sensor GX-2012 Operator’s Manual
6. To replace the CO filter, pull the old one out of its recess in the sensor
gasket if it did not already come out and replace it with a new one. You
do not have to remove the sensor gasket to do this. The CO filter sits in a
recess on top of it.
Figure 26: Replacing the LEL and CO Filters
7. Insert the flow chamber back into the instrument.
8. Tighten the top screw of the flow chamber completely.
9. Place the belt clip into position and tighten the three screws retaining it.
Replacing a Sensor
1. Verify that the GX-2012 is off.
2. Use a screwdriver to remove the three screws holding the belt clip to the
back side of the instrument. Two of these screws also secure the flow
chamber.
3. Remove the belt clip and unscrew the remaining screw holding in the
LEL Filter
CO Filter
Sensor
Gasket