194 • Appendix F: ESS-03 Toxic Sensors
GX-6000 Operator’s Manual
4 . Gently pull up the edges of the sensor gasket to loosen it from its connections. Be
sure not to lose any of the filters that are in it. The sensors will be exposed.
5 . Remove the SO
2
sensor from its socket.
6 . Use tweezers to remove the Teflon filter and H
2
S scrubber from the SO
2
sensor’s
face.
Figure 41: SO
2
Sensor’s Filters
7 . Be sure any filter material is completely removed from the sensor face.
8 . Place the new H
2
S filter in the sensor face’s recess.
9 . Peel the protective paper off of the Teflon filter.
10 . Place the Teflon filter over the H
2
S scrubber.
11 . Gently press down on the Teflon filter. Be careful not to tear the filter.
12 . Put the SO
2
sensor back into its socket.
13 . Place the sensor gasket and filters back over the sensors ensuring that the sensor
gasket seals with the sensors and the flow fittings. The flow fitting connections need
to be facing up and cannot be skewed sideways. The gasket must be pushed down in
the center and secured under the gasket aligning tabs.
Failure to install the sensor gasket appropriately may result in inaccurate gas
readings.
H2S Scrubber
SO2 Sensor
Teflon Filter