Related Manuals for National 131-RLED
Summary of Contents for National 131-RLED
- Page 1 National Optical & Scientific Instruments Inc. 6508 Tri-County Parkway Schertz, Texas 78154 Phone (210) 590-9010 Fax (210) 590-1104 INSTRUCTIONS FOR MODEL 131-RLED COMPOUND MICROSCOPES Copyright © 3/31/10 National Optical & Scientific Instrument Inc.
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Page 2: Operation
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, 0.9mm L hex key wrench, “C” wrench for tension adjustment and recharger. Always handle and move microscope by securely holding the arm of microscope. - Page 3 2. Assure that light is available for illuminating the specimen. a. Your microscope has special LED illumination that is powered by 3 rechargeable AA nickel metal hydride batteries (supplied). These batteries may be recharged, as required, using the recharger (supplied). Each set of batteries may be recharged approximately 500 times before replacing, and each charge will provide up to 50 hours of microscope operation.
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Page 4: 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 5: Electrical Maintenance
a. The rack stop screw has been pre-adjusted at the factory and should not require re-adjustment. However, if you do attempt re-adjustment, note the following procedure. Loosen round knurled locking nut by turning counter-clockwise. Then loosen stop screw. With fine focus adjustment at mid-range, focus on standard slide until sharp image is obtained. -
Page 6: Troubleshooting
An LED “bulb” will last up to 50,000 hours so you don’t have to do this exercise very often. To open the illuminators field lens housing, use 0.9mm “L” type hex key wrench supplied with your microscope. Loosen hex screws on lens housing. Remove lens housing to expose LED “bulb”. Remove bulb by grasping the plastic base of bulb and gently pulling straight up.