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7 Maintenance
7-3. Gas calibration method
- 35 -
NOTE
If the zero calibration failed since the zero point was significantly fluctuated from around zero, it returns to
2-1 after FAIL rather than PASS is displayed. In this case, the zero adjustment has not been completed.
2-1
Press SET key.
Current Concentration Value Display
Press SET key to perform the zero
adjustment.
Under Zero Adjustment (CAL. is displayed)
Wait for a while until the adjustment is
completed.
Zero Adjustment Completed
It automatically returns to 2-1 after
PASS is displayed.
* If the zero adjustment failed, it
automatically returns to 2-1 after
FAIL is displayed.
Return to 2-1.
Return to 2-1.
LED