Essilor Instruments ALM 500, User Manual, Page: 12 / 46

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(3
）
If the main unit cover or operation panel is dirty, gently wipe it
with a dry cloth. For hard to remove stains, a damp cloth or
neutral cleanser is recommended.
(4
）
If the device is not used for any length of time, unplug the power cord.
(5
）
When the device is not in use, protect it with the
accompanying dustproof cover. The measurement
accuracy could be affected by dust.
(6
）
Never attempt to fix or remodel the device. When the
device fails to function properly, do not touch the inside do not touch the inside do not touch the inside do not touch the inside.
Contact us or your local distributor.
3.4 3.4 3.4 3.4 Disposal Disposal Disposal Disposal
Dispose this device according to the regulations of each local government and recycle plan.
Inappropriate disposal affects the environment.
Avoid using organic solvent such as thinner which
may damage the water based paint finish or device.