3 Replace the fuse with the attached fuse.
4 Press the fuse holder with a screwdriver and turn it clockwise.
The fuse holder is now reset.
SPECIAL NOTES ON CLEANING
Cleaning the Outer Cover
• The outside covers and operation panel should be cleaned with a soft cloth at least
once every three months. If a stain is extreme, use a solution of a neutral tableware
detergent and warm water. Dip the soft cloth in the solution, squeeze out the excess
water and then wipe off the stain.
MAINTENANCE AND CHECKING
Do not use or apply any spray-typed cleaner near the in-
strument. If a drop of cleaner remains inside the measur-
ing nozzle, the patient’s eye may be injured during meas-
To avoid discoloring/deterioration of the plastic components, do
not use volatile solvents (benzine, thinner, gasoline, etc.).
Replacing the Fuse
Setting the Fuse Holder