GX-6000 Operator’s Manual IR CO
2
Start Up and Normal Operation • 198
2 . Connect the tubing to the GX-6000’s inlet fitting. Be sure the arrow on
the filter is pointing toward the inlet fitting.
Figure 42: CO2 Scrubber Connected to GX-6000
3 . Wait one minute for the fresh air sample to flow through the carbon
dioxide scrubber, then press and hold the ▲AIR button to set the zero
reading.
4 . Remove the scrubber from the inlet fitting.
5 . Reattach the tubing to the open end of the scrubber.
Performing a Demand Zero for Instruments with a
Carbon Dioxide Sensor and a PID Sensor
If your instrument has both an IR CO
2
sensor and a PID sensor, you will need
to use both the carbon dioxide scrubber and the VOC zero filter to perform a
demand zero.
1 . Remove the CO
2
scrubber’s tubing from the side that has an arrow
pointing to it.
2 . Remove both plugs from the tubing stubs on the VOC zero filter.
3 . Connect the VOC zero filter to the GX-6000’s inlet fitting. The filter
does not have a preferred flow direction.
4 . Connect the CO
2
scrubber to the tubing stub on the other side of the
VOC zero filter. Be sure the arrow on the CO
2
scrubber is pointing
toward the VOC zero filter. See the figure below for the scrubber setup.
Figure 43: CO2 Scrubber and VOC Zero Filter Combination
5 . Wait one minute for the fresh air sample to flow through the scrubber
setup.
6 . Press and hold the ▲AIR button to set the zero reading.
VOC Zero FilterCO2 Scrubber
To GX-6000
To Next Page
Loading...
