Model 106-L Ozone Monitor Manual Rev. E
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contamination in the optical setup. See the “Troubleshooting” section
of the manual.
4. The slope of the line is the gain factor (S) and the intercept is the
offset (Z) that need to be applied to the ozone monitor response to
calibrate it to the primary ozone standard. If the intercept is outside
of the range from -10 to 10 or the slope is outside of the range from
0.90 to 1.10, this is an indication of a problem in the calibration setup
or the ozone monitor being calibrated. The most likely problems in
the ozone monitor are leaks, a malfunctioning ozone scrubber, a
contaminated valve, or contamination in the optical setup. See the
“Troubleshooting” section of the manual.
5. Enter the calibration menu (
Main Menu\Cfg\Cal\O3
) in the
instrument software and set the calibration parameters.
PERIODIC ZERO AND SPAN CHECKS
To ensure the quality of the ozone monitor data, periodic zero and span checks
can be performed by following the steps below:
1. A zero check is performed by sampling zero air with the Model 106
following the “Measurement of Zero Air” section above.
2. A span check is performed by sampling an ozone concentration at
the high end of the concentration range of interest following the
“Measurement of Ozone Standards” section above.
3. Average measurements from the zero check or span check should be
within the instrument specifications. If the measurements are not
within specifications, this is an indication of problem in the calibration
setup or the ozone monitor being checked. The most likely problems
in the ozone monitor are leaks, a malfunctioning ozone scrubber, a
contaminated valve, or contamination in the optical setup. See the
“Troubleshooting” section of the manual.
