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INTRODUCTION
Thank you for your purchase of a National microscope. It is a well built, precision instrument carefully checked to
assure that it reaches you in good condition. It is designed for ease of operation and years of carefree use. The
information in this manual probably far exceeds what you will need to know in order to operate and maintain your
microscope. However, is provided to answer questions which might arise, and to help you avoid any maintenance
expense that may be unnecessary.
Your new compound microscope is a high performance microscope with high quality Achromatic objective lenses that
provide good resolution and optical centering. The microscope is designed with a built-in ball bearing mechanical stage
providing a travel range of 75mm x 50mm in the X and Y direction with graduation reading up to 0.1mm for accurate
positioning of specimen. Also included is a ball bearing quadruple nosepiece, precision coaxial focusing mechanism,
rack and pinion mounted N.A. 1.25 Abbe condenser and built-in 12 volt 20 watt halogen variable light source.
Carefully read these instructions before operating microscope. They will permit you to use your new microscope to its
fullest capability. Nomenclature used to describe components and controls is identified by referring to diagram on page
2.
UNPACKING
The microscope and accessories have been carefully packed to assure they reach you in the best possible condition.
Do not discard the packing container or materials until all components are accounted for. Save the packing container
in case the microscope needs transporting to another location or shipped for repairs. Components are packed within
the container as indicated below.
160 Monocular:
161 Dual head:
162 Binocular head
163 Trinocular head
A.
Lay container (A) flat and carefully remove microscope head and stand.
To protect focus mechanism during
shipment, two black plastic wedges (b)
and one black plastic block (c) are
inserted at strategic points as indicated.
These plastic parts MUST be removed prior
to operating microscope. Failure to do so
will result in damage to focusing mechanism
and will void your warranty.
1. Remove two black Velcro straps (a).
2. Remove wedge (b) by pulling apart the
two parts of wedge in opposite directions. (b)
3. Lower stage by rotating coarse focus
knob, on side of microscope illustrated,
in counter-clockwise direction
4. Remove block (c) from stand.
5. These components should be retained with styrofoam container
B.
Carefully remove from the stand all tape and packing material used to protect microscope components during
shipment.
C.
For Models 160, 161 and 162, lay container flat and carefully remove eyepieces, rubber eyeshields, vertical
eyepiece tube (model 161 only), filters, fuse and dust cover. For Model 163 trinocular only, lay container flat
Head and Stand, one eyepiece, one rubber eyeshield, 32mm blue, yellow and green
filters, 45mm neutral filter, dust cover.
Head and Stand, vertical viewing eyepiece tube, two eyepieces, two rubber eyeshields,
32mm blue, yellow and green filters, 45mm neutral filter, dust cover, 2mm "L" type key
wrench.
Head and Stand, two eyepieces, two rubber eyeshields, 32mm blue, yellow and green
filters, 45mm neutral filter, dust cover.
Head and Stand, two rubber eyeshields. Vertical viewing eyepiece tube, 32mm blue,
yellow and green filters, 45mm neutral filter, dust cover, and Three eyepieces.
NOTICE
(a)
(c)
(a)
3
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