35
7
7.
Maintenance
To maintain the performance of the purity meter and improve the reliability, perform regular maintenance
and check.
7-1. Maintenance intervals and items
Perform the following maintenance regularly before use.
• Daily maintenance: Perform maintenance before beginning to work.
• Regular maintenance: Perform maintenance once or more every year to maintain the performance.
Maintenance item Maintenance content
Daily
maintenance
Regular
maintenance
Battery level
check
Check that the battery level is sufficient.
○
○
Concentration
display check
Make the unit draw in fresh air and check that the
concentration display value is zero. If the reading is
incorrect, perform reference calibration using fresh
air.
○
○
Checking the
operation of the
main unit
See the pilot indicator to check for abnormalities.
○
○
Span adjustment
Check the sensitivity using a calibration gas and
perform span adjustment as needed.
○
13.
WARNING
If an abnormality is found in the purity meter, contact RIKEN KEIKI immediately.
