PROGRAMMING OF IAQRAE
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3. This completes the Multiple Sensor Calibration procedure
and moves to the next submenu item, Single Sensor
Calibration.
4. Turn off gas flow. Disconnect calibration tube from monitor.
5. If the sensor failed the calibration, the sensor name and an
error message “failed” will appear and after ten seconds
flashing will proceed to next submenu. In this case, the
calibration data for the current sensor are not changed.
Cross Sensitivity
Some sensors may show cross sensitivity to other gases.
Therefore, it is important to choose the gas mixture carefully for
the multiple sensor calibration to avoid erroneous calibration
due to cross sensitivity. For example, some VOC gases are
known to cause erroneous readings by the CO sensor. In
general, it is recommended to calibrate the toxic gas sensor
and VOC sensor separately.
Calibration Time Stamp
When a multiple sensor calibration is performed, a timestamp
will be stored in the nonvolatile memory. This information will
be included in the Datalogging report.
