12
PROBLEM
CAUSE
SOLUTION
PAGE
4. Specimen image blurs
when zoom magnification is
changed.
Diopter ring is not
correctly adjusted.
Adjust it correctly.
8
Not in complete focus on
specimen.
Focus specimen
correctly at a high
magnification.
5
．
Coarse focus adjustment
knobs rotate with too much
resistance.
Tension adjustment ring
is too tight.
Loosen it properly.
7
6
．
Zoom microscope body
drops or specimen goes out
of focus during observation.
Tension adjustment ring
is too loose.
Tighten it properly.
7
6
．
Outfit
Components
Specification
Quantity
NGI-6
Main body
Main body
1
●
Observation
system
Binocular head and zoom body
1
●
Trinocular head
1
○
Illuminator
Transmitted illuminator (Halogen illumination)
1
●
Reflected
illuminator
fluorescent lamp
1
●
LED lighting
1
●
Eyepiece
15
×
Eyepiece
2
●
20
×
Eyepiece
2
○
Objective
0.5
×
1
○
0.7
×
1
○
2
×
1
○
Stone holder
Stone holder
1
●
Photo attachment
1
○
Video attachment
1
○
Power cord
Power Cord
1
●
●：
standard Outfit
；○：
Optional
