Welch Allyn LumiView Portable Binocular Microscope - User Manual - Manual (Page 20)

Problem Solution
Illumination spot is too high Make sure you are 14” to 16”
and is out of field of view. from patient or object under
inspection. If you are too close,
the illumination spot will be
too high.
Make sure optical section is
aligned with user’s eyes. Sug-
gest looking into the instrument
when on user. The user’s eyes
should be centered vertically on
the center mirrors.
A. optical section
too high on user
B. optical section
too low on user
C. optical section
centered cor-
rectly on user
To correct A and B, simply
loosen screw on back of optical
section and adjust optical
section up or down until image
is centered.
User encounters glare off of
the pneumatic insufflation
system. Clean the glass section with
alcohol swab or clean cotton
cloth.
Rotate pneumatic assembly
until glare dissipates.
Troubleshooting Guide
18