National optical & scientific instruments inc. 6508 tri-county parkway schertz, texas 78154 phone (210) 590-9010 fax (210) 590-1104 instructions for model 210 (corded) model 210-rled (rechargeable cordless) compound microscope copyright © 1/14/2013 national optical & scientific instrument inc..
Eyepiece (ocular lens) eyepiece tube head of microscope arm objective turret (nosepiece) objective lens condenser lens stage illuminator field lens housing base coarse focus knob fine focus knob rheostat control tension adjustment on/off switch and fuse holder (back of base) iris diaphragm safety ra...
3 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, 2mm “l” hex wrench (for rack stop adjustment), 0.90mm “l” hex key wren...
4 2. Assure that light is available for illuminating the specimen. 210 lighting operation: a. Make certain that the main voltage of your microscope corresponds to the voltage of your power outlet, 120v ac. Insert plug into matching voltage output. B. Push rocker switch located at rear of base to on ...
5 10. Changing magnification. A. Magnification is changed by rotating objective turret until a different objective lens is moved into optical path. Always turn turret until you hear the “click”, indicating that lens is properly indexed. Otherwise, you will not be able to see anything when looking th...
6 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 u...
7 disconnect the charger from the ac wall outlet and the output cord from recharging socket after 12 hours. Batteries and charger may feel warm when charging, and unplugging the recharger is a safety precaution. You may operate the microscope light even while it is being recharged. Simply flip light...
8 optional accessories and parts: #610-045r wf10x eyepiece w/reticle, 10mm/100div. #615-045 wf15x eyepiece w/pointer #760-045 din 60xr objective lens, n.A. 0.90 #800-001 replacement led light #802-003 auto cut-off recharger for rechargeable led microscopes #801-160 replacement fuse, 0.5 amp, time de...
