7. Maintenance 7-1. Maintenance intervals and maintenance items
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7
Maintenance
The product is an important safety and disaster-prevention device.
Perform product maintenance at regular intervals to ensure performance and to improve disaster-prevention and safety
reliability.
7-1. Maintenance intervals and maintenance items
Maintain the following items at regular intervals:
Daily maintenance: Perform maintenance before commencing work.
Monthly maintenance: Perform alarm tests monthly. (Refer to ‘7-4. Performing alarm tests’ in the Technical Manual.)
Regular maintenance: Perform maintenance at least once a year (ideally, at least once every six months).
Maintenance
item
Maintenance details
Daily
maintenance
Monthly
maintenance
Regular
maintenance
Battery level
Check to confirm that battery levels are adequate.
〇 〇 〇
Concentration
display
Check to confirm that the concentration readout is [0 ppm] ([20.9 %]
for oxygen) by measuring fresh air.
If the readout is not [0 ppm] ([20.9%] for oxygen), check to confirm
that no interference gases are present, then perform air calibration.
〇 〇 〇
Main unit
operation
Check to confirm that no fault alarm is displayed on the LCD display. 〇 〇 〇
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