Owner manual

6 Maintenance 6-1. Maintenance intervals and items
- 39 - GX-8000
6
Maintenance
This is an important instrument for the purpose of safety.
To maintain the performance of the gas monitor and improve the reliability of safety, perform a regular
maintenance.
6-1. Maintenance intervals and items
• Daily maintenance: Perform maintenance before beginning to work.
• Monthly maintenance: Perform alarm test once a month.
• Regular maintenance: Perform a maintenance once or more for every six months to maintain the
performance as a safety unit.
Maintenance item Maintenance content
Daily
maintenance
Monthly
maintenance
Regular
maintenance
Battery Level
Check
Check that the battery level is sufficient.
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Concentration
Display Check
Make the gas monitor draw in fresh air and check that
the concentration display value is zero (or 20.9 vol%
on the oxygen deficiency meter). When the reading is
incorrect, perform the zero adjustment (fresh air
adjustment) after ensuring that no other gases exist
around it.
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Flow Rate Check
See the flow rate indicator to check for abnormalities.
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Filter Check
Check the dust filter for dust or clogging.
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Alarm Test Check the alarm lamp and buzzer for normal
operation using the alarm test function.
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Span Adjustment Perform the span adjustment by using the calibration
gas.
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Gas Alarm Check
Check the gas alarm by using the calibration gas.
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