8
See more information on calibration in the Maintenance section of
this manual.
Note: the screen may show a warning for humidity error. This is
normal during the calibration process.
1.
Press Menu
3 times to select calibration.
2.
Press Next
to select Ambient or N
2
.
3.
Press Set
to begin calibration. Calibration takes 5-10 seconds.
4.
“Calibration succeeded” will appear once calibration is complete.
Turn off the gas and let the monitor stabilize. It will return to the normal indoor CO2 level. Two
different SAN-0001 monitors may show different CO2 levels after calibration. If they are within
40ppm ±3% of the actual CO2 level, they are within the sensor’s specifications.
To quickly verify the calibration, you can take the monitor outdoors. If the Altitude is set
properly, the CO2 level should drop to approximately 400ppm depending on your location
.
5. Altitude Correction
The CO2 level displayed is affected by the altitude. This monitor is shipped with the altitude set
at sea level (zero feet). If it is used at a higher altitude, you should first correct for altitude to
insure maximum accuracy. Once the altitude correction is set, it will be saved in memory. See
Appendix B
for more information.
1.
Press Menu
4 times to select Altitude Correction.
2.
Press Next
to raise the altitude in increments of 500 feet (150 meters) above sea level
until the closest altitude to yours is reached. When altitude reaches 20,000 feet, it will
return again to zero feet.
3.
Press
to save the current altitude setting and return to normal display.
6. Data Logging
The date, time, CO2, temperature and relative humidity are continuously recorded every 30
seconds while the monitor is powered on. A total of 65,520 records (approximately 22 days) can
