![background image](http://html1.mh-extra.com/html/national/dc5-420th/dc5-420th_instructions-for-use-manual_3423588006.webp)
6
MICROSCOPE MAGNIFICATION CHART
MAINTENANCE
WARNING: For your own safety, turn switch off and remove plug from power source before maintaining your
microscope. If the power cord is worn, cut or damaged in any way, have it replaced immediately to avoid shock or
fire hazard.
1. OPTICAL MAINTENANCE
A. Do not attempt to disassemble any lens components. Consult a microscope service technician when any repairs
not covered by instructions are needed.
B. Prior to cleaning any lens surface, brush dust or lint off lens surface using a camel hairbrush. You can also use an
ear syringe or canned compressed air, such as that sold by most computer stores.
C. To clean eyepiece lenses, do not remove from eyepiece tube. Clean only the outer lens surface. Breath on lens to
dampen surface, then wipe with lens paper or tissue or use a cotton swab moistened with distilled water. Wipe
lenses with a circular motion, applying as little pressure as possible. Avoid wiping dry lens surface as lenses are
scratched easily. If excessive dirt or grease gets on lens surfaces, a small amount of Windex can be used on a
cotton swab or lens tissue. Follow the same procedure to clean objective lens covers.
Eyepieces
Zoom
Objective
Position
Standard Objective
1X
(Supplied)
Auxiliary Objective
0.75X
(Optional)
Auxiliary Objective
1.5X
(Optional)
Working Distance
79mm
Working Distance
90mm
Working Distance
34mm
Maximum Specimen
Height 93mm
Maximum Specimen
Height 66mm
Maximum Specimen
Height 120mm
Total
Magnification
Field
Size
Total
Magnification
Field
Size
Total
Magnification
Field
Size
WF5X
Field No.22
(Optional)
(No Reticle Holder)
Interpupillary
Distance
59~83
1X
5X
22mm
3.75X
29.3mm
7.5X
14.7mm
2X
10X
11mm
7.5X
14.6mm
15X
7.3mm
3X
15X
7.3mm
11.25X
9.8mm
22.5X
4.9mm
4x
20X
5.5mm
15X
7.3mm
30X
3.7mm
WF10X
Field No. 20
(Supplied)
Accepts Reticle
22.8mm O.D.
Interpupillary
Distance
54~78
1X
10X
20mm
7.5X
26.7mm
15X
13.3mm
2X
20X
10mm
15X
13.3mm
30X
6.7mm
3X
30X
6.7mm
22.5X
8.9mm
45X
4.4mm
4x
40X
5mm
30X
6.7mm
60X
3.3mm
WF15X
Field No. 13
(optional)
(No Reticle Holder)
Interpupillary
Distance
50.5~74.5
1X
15X
13mm
11.25X
17.3mm
22.5X
8.7mm
2X
30X
6.5mm
22.5X
8.7mm
45X
4.3mm
3X
45X
4.3mm
33.75X
5.8mm
67.5X
2.9mm
4x
60X
3.25mm
45X
4.3mm
90X
2.2mm
WF20X
Field No. 10
(optional)
(No Reticle Holder)
Interpupillary
Distance
52~76
1X
20X
10mm
15X
13.3mm
30X
6.7mm
2X
40X
5mm
30X
6.7mm
60X
3.3mm
3X
60X
3.3mm
45X
4.4mm
90X
2.2mm
4x
80X
2.5mm
60X
3.3mm
120X
1.7mm