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Any pollution at the positioning window may result in failure to recognize or align the
center between eyes, which may lead to measurement error or even failure to measure; please
dip neutral detergent with the clean cotton swab to clean the external surface of positioning
window. Monitoring window
Touch screen
Clean the display with soft lint-free cloth. In case of any stain that cannot be removed
completely, please dip some water to wet the soft cloth.
Other external surface
Other external surface of equipment can be cleaned with soft lint-free cloth wetted with
little water.
Cleaning cycle
It is suggested to clean the whole equipment every two months. Clean the optical devices
only when they are dirty.
Notes:
Since optical devices are easily damageable, they cannot be wiped frequently, and the
operators shall try to avoid contacting the optical surface directly with objects during use.
Patience and technical skills are required for cleaning optical devices, and please contact
after-sales service person or professional person in case of any doubt about cleaning.
Protect the equipment from water during the cleaning. Lint-free cloth can be wetted but
free from any drops. Prevent any fluids flowing into the equipment.
4.2 Replacement and maintenance
1) Turn off the power switch, and pull out the power cord.
2) Take off the base of protective tube with tools.
3) After replacing the protective tube, install the base back.
4) Notes: Please select the new fuse tubes of the same models, specifications and rated
values (T2AL250V).
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