TOS93 Series User’s Manual 243
Maintenance
Replacing Components
Replacing the backup battery
This product uses a lithium battery for memory backup. When the battery is low, the clock may become
inaccurate or test conditions and the like may no longer be saved.
Battery life varies depending on the operating environment. As a guideline, we recommend that the battery
be replaced once every three years. For information about replacing the battery, contact your Kikusui
agent or distributor.
This product comes with an installed CR Coin Lithium Battery which contains Perchlorate Material. Dis-
posal of this battery may be regulated due to environmental considerations.
See www.dtsc.ca.gov/hazardouswaste/perchlorate
Replacing the fuse
Applicable models:
A fuse (rating: 250 V, 15 A (T)) is inserted in the EUT power supply line. When 1600 VA or 15.75 A is
exceeded, the protection function is activated, and the EUT power supply line is shut off. As such, nor-
mally, this fuse does not blow. However, should this fuse blow due to errors in wiring or aging, you can
replace it.
1
Remove the power cord from the AC LINE IN inlet on the rear panel.
2
Remove the fuse holder using a flat-blade screwdriver or the like.
3
Replace the blown fuse with an appropriate one.
4
Attach the fuse holder.
Risk of electric shock.
• Before replacing the fuse, remove the power cord from the AC LINE IN inlet for the
EUT power supply.
• Use a fuse compatible with the product in shape, rating, and characteristics. Using
a fuse with a different rating or shorting the fuse holder is dangerous.
Spare fuse
Fuse
Fuse holder
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