4.4 Exchanging the line fuse
ITC500 / page 102
Execution
• Switch the ITC5xx off and remove the mains cable from the mains jack.
• Remove the cover of the fuse holder by means of a screwdriver. A small drawer
will open up. If available, first the replacement fuse will be visible. The active fuse
is located at the rear part of the drawer.
•
Figure 18 ITC5xx fuse holder
• Remove the fuse holder completely and exchange the defective fuse. We
recommend to check the same time if a replacement fuse is provided and if this
fuse is still useable.
• Push the fuse holder back until is has snapped in.
• Execute a function test of the ITC5xx by switching it on. In case the ITC5xx could
not be switched on despite the correct fuse being inserted, please contact your
supplier or Thorlabs (Germany).
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