CO Sensor Charcoal Filters
CO sensors can be sensitive to hydrocarbons. To reduce or eliminate
this cross sensitivity, a charcoal filter is installed in the gas plate above
the CO sensor. The charcoal filter removes organic vapor cross-
sensitivity and will last 4-6 weeks under normal operation conditions
before it needs to be replaced. However, if the monitor is exposed
to high concentrations of VOC gases, the carbon filter needs to be
replaced more frequently. (P/N 008-3006-005, 5-pack; keep unused
filters sealed during storage.)
Refer to Technical Note-121 CO Sensor Cross-Sensitivity and Removal
with Charcoal Filter for cross-sensitivity data.
The carbon filter used for CO sensors may lower the reading if used
on other sensors. Remove the filter if another sensor is replacing a CO
place carbon filter above the CO
place carbon filter above the CO
place carbon filter above the CO
sensor in either position, not both
sensor in either position, not both
sensor in either position, not both
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