Operation - National DC5-169 Series Instructions Manual

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 3 watt LED variable light source. Retain the
styrofoam container in case the microscope must be transported or returned to factory for any reason.
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.
A. Microscope body with 1.25 N.A. Abbe condenser and iris diaphragm
B. Two WF10x eyepieces
C. Two rubber eyecups
D. Four objective lenses: DIN 4x, 10x, 40xR, 100xR oil immersion
E. Specimen holder for mechanical stage
F. 12VDC switching power supply, operates on 100v-240v, 50H/60H
G. Power cord
H. CD Motic Images software
I. Calibration slide
J. USB cable (for connecting to computer)
K. Dustcover
1. Lay container (A) flat and carefully remove microscope head and stand.
NOTICE 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 wedges (b) by pulling apart the
two parts of wedge in opposite directions.
3. Lower stage by rotating coarse focus
knob, on side of microscope illustrated,
in counter-clockwise direction
4. Remove blocks (c) from stand.
5. These components should be retained with styrofoam container
2. Carefully remove from the stand all tape and packing material used to protect microscope components during
shipment.
3. Un-wrap the components, making certain that lens surfaces do not come in contact with dust, dirt, fingerprints.
Damage to optical surfaces can result from such contaminants, and reduce image quality.

OPERATION

1. Illumination.
(a)
(b)
(a)
(c)
3