Maintenance of Major System Units/UV-Ar Laser
MAINTENANCE
2-2
Page
The definitions of the term “maintenance” by CDRH 21CFR are quoted below for reference.
CDRH
“Maintenance” means performance of those adjustments or procedures specified in user
information provided by the manufacturer with the laser product which are to be performed
by the user for the purpose of assuring the intended performance of the product. It does not
include operation or service as defined in paragraph (b) (27) and (38) of this section.
2-2 UV-Ar Las er
2-2-1 Auto Alignm ent Operation (Remote Switch)
The UV Ar laser is provided with an auto alignment facility, which automatically optimizes
the laser oscillation by adjusting the unstability in output due to mirror alignment error
resulting from long period of use. It is recommended to perform auto alignment about once a
month.
After warming up the laser head for more than 30 minutes, press the remote switch
connected to the rear of the laser head once. The auto alignment starts and completes in
some tens of seconds. The indicator on the rear of the laser head blinks during auto
alignment.
Do not press the remote switch while the indicator is blinking.
Do not use the remote switch too frequently. The recommend interval is once every few
months provided that the UV Ar laser is used frequently. When the UV Ar laser has not been
used for a long period, press it only once at the time of idle running of the laser head (aging)
which should be performed every month.
Remote Switch
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