120-00012
GasD 8000 Series User Manual
12/14/2020
17
4.3 SAMPLE INTERFERENCES
Gases present in the environment other than the "target" gas of measurement,
referred to as “interfering gases”, may affect analyzer response. Interferences are not
necessarily linear and may also exhibit time dependent characteristics.
Gas interference charts detailing how interfering gases may affect specific target gas
readings are available on the Interscan Corp. website at the link below.
https://www.gasdetection.com/the-tech-center/instrument-sensor-
performance/interfering-gas-data/
The special case of how alcohols affect electrochemical sensors is discussed in this
https://www.gasdetection.com/gas-detection-knowledge-base/ethylene-oxide-eto-or-
eo-monitoring-applications/alcohol-and-electrochemical-sensors/
For further information on the effects of interfering gases, please contact the factory.
4.4 AUTO BLOCKAGE DETECTION
The GasD
8000 series portable analyzer is
equipped with flow rate detection to protect against
unwanted blockages in the inlet line. In the event of a
sudden drop in flowrate in ON mode, the screen
shown to the right will be displayed. This indicates a
blockage of the inlet probe, filter or sample tube that
must be addressed before sampling can resume.
Should this message appear, check the probe, filter and sample tube for any blockages or
kinks that might restrict flow. Clear this blockage then press the
ENTER
button to proceed.
