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National Optical & Scientific Instrument Inc.
Copyright © 1/2/01
National Optical & Scientific Instruments Inc.
11113 Landmark 35 Drive
San Antonio, Texas 78233
Phone (210) 590-9010 Fax (210) 590-1104
INSTRUCTIONS FOR
MODELS 130, 131, 132, 138 & 139
COMPOUND MICROSCOPES
NOTE: These models share common features, nomenclature and
method of operation. The only difference are...
Model 130 features mirror for reflected illumination from
natural or other light source.
Models 131 & 132 feature electric illumination from a
tungsten bulb.
Models 138 & 139 feature electric illumination from a
fluorescent bulb.
Models 132 & 139 have both 30° inclined and vertical
eyepiece tubes, each supplied with WF10x
eyepiece.
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Table of Contents
Related Manuals for National 130
Summary of Contents for National 130
- Page 1 COMPOUND MICROSCOPES NOTE: These models share common features, nomenclature and method of operation. The only difference are… Model 130 features mirror for reflected illumination from natural or other light source. Models 131 & 132 feature electric illumination from a tungsten bulb.
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Page 3: Objective Lens
For optimum viewing satisfaction, follow these simple procedures. Nomenclature used to describe components and controls can be identified by referring to the diagram at left. UNPACKING 1. Carefully remove microscope, dustcover and warranty card. Always handle and move microscope by securely holding the arm of microscope. -
Page 4: Operation
OPERATION 1. Place microscope directly in front of you in a manner which permits you to comfortably look into the eyepiece. Note that the head of microscope rotates 360º, permitting you to operate the microscope from the front or from the back, whichever is most convenient for you. -
Page 5: Maintenance
c. Also note that each objective has a color ring, which permits you to instruct changes in magnification by referring to an easily observed color rather than to a number. d. The microscope has been parfocalled at the factory, which allows easy change from one magnification to another, requiring little or no adjustment of the fine focus knobs. -
Page 6: Mechanical Maintenance
Before having costly servicing done, or before returning to National for “warranty repair”, make certain to examine the front lens element with a magnifying glass or eye loupe for the presence of such contaminants. If a microscope is returned to National for warranty repair, and it is determined that such contaminants are the problem, this is not covered under warranty and National will submit a cost estimate for cleaning. -
Page 7: Troubleshooting
Replace with a 110v 20 watt lamp with double contact, medium bayonet base. This is a standard, commonly used replacement bulb. National #800-102. Carefully wipe lamp to insure it is clean and free of all fingerprints. Replace field lens housing assembly. -
Page 8: Limited Lifetime Warranty
LIMITED LIFETIME WARRANTY National warrants this microscope to be free from defects in material and workmanship under normal use and service for the life of the instrument. The warranty does not cover damage resulting from abuse or misuse, repairs or alterations performed by other than authorized repair technicians, or damage occurring in transit.