10
Remark: S1, S2, S3, S4 means the sensor channel.
Alarm 1 means grade-I
alarm. Alarm 2 means
grade-II alarm.
The number of Total means total record quantity.
The date and time in right is the date and time when this alarm occurs.
User can view all alarm records with “
” or “
” key.
4.
Calibration
4.1
Zero Calibration
(For oxygen, it is span gas calibration with standard value of 20.9%vol in clean
air.) Zero calibration must be operated in clear air environment, preferably
once a day or calibrated after an alarm.
In the normal working mode, press “
” key to enter main menu.
Press “
” or “
” key to select the submenu “Zero Calibration” and press
“
” key to enter.
Now, the screen will display as below,
