2.3 Saving Data
Once the SAVE key is pressed, the buzzer beeps and the display shown on the right
comes up. The time/ data and the measurement result are saved chronologically
from No.001 to No.100. The saved data can be seen at “VIEW SAVED DATA” in the
SETTING MODE. Also, the saved data is deleted at “CLEAR SAVED DATA” in the
SETTING MODE.
2.4 Initial Display (Self-diagnostic Display)
At starting with the MEASURING MODE by pressing POWER Key the self-diagnostic
function automatically starts to work. If the result is normal, display shown on the
right side is displayed.
If any problem was found on any of the items, it is indicated like the display on the
right. The display is an example for contamination of the interferometer. If the
problem becomes serious, the display does not go to the Basic Display of the
Measuring Mode, but go to ERROR message display.
2.6 AIR CAL. CAUTION
If the temperature inside of the sensor has changed over ± 10
℃
from the last time the AIR CAL was performed,
[CAUTION/ CHECK AIR CAL] is displayed in order to protect from zero drifting. ([Measuring Gas/ Base Gas] and [AIR CAL]
are displayed consecutively.
If the [CAUTION/ CHECK AIR CAL]: is displayed, perform the AIR CAL based on the procedure below:
AIR CAL. Procedure
1.
Press the PUMP key and let it sample some fresh air.
2.
When the indication becomes stable, stop the pump with PUMP key and press the AIR CAL key.
CAUTION:
Before pressing the AIR CAL key, let the instrument sample enough fresh air. (ideally for 2 minutes )
Otherwise, correct measurement cannot be performed.
CAUTION:
Whenever measurement starts, confirm if the AIR CAL value is displayed after fresh air is sampled
enough. If the AIR CAL. Value is not indicated (or even if [AIR CAL CAUTION] is not displayed),
perform the AIR CAL procedures by correct method.
