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  4. 104-LED
  5. Instructions For Use Manual

National 104-LED Instructions For Use Manual

Summary of 104-LED

  • Page 1

    National optical & scientific instruments inc. 11113 landmark 35 drive san antonio, texas 78233 phone (210) 590-9010 fax (210) 590-1104 instructions for model 104-led elementary compound microscope copyright © 12/4/02 national optical & scientific instrument inc..

  • Page 2

    Ocular lens (eyepiece) eyepiece tube objective turret (nosepiece) objective lens stag stage clips disc diaphragm illuminator housing illuminator switch arm stage stop screw stage stop locking nut focusing knob base ac adapter jack (adapter optional).

  • Page 3

    3 introduction thank you for your purchase of a national microscope, it is a well built, precision instrument and 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 wha...

  • Page 4

    4 b. Place microscope directly in front of you in a manner which permits you to comfortably look into the eyepiece. Note that the head of the microscope rotates 360 °, permitting you to operate the microscope from the front or the back, whichever is most convenient. Most users will position the micr...

  • Page 5

    5 3. To change magnification: a. Rotate revolving nosepiece to position 10x objective into optical path. Some slight adjustment of focusing knob may be required. B. Rotate revolving nosepiece to position 40x objective into optical path. Some slight adjustment of focusing knob may be required. Note: ...

  • Page 6

    6 troubleshooting problem reason for problem solution light fails to operate. Light switch in off position. Turn light switch on. Batteries dead. Replace batteries. Led bulb burned out. Replace led. Disc diaphragm has not “clicked” into proper position and is blocking light source beneath stage turn...