National optical & scientific instruments inc. 11113 landmark 35 drive san antonio, texas 78233 phone (210) 590-9010 fax (210) 590-1104 instructions for model 158-led compound microscopes copyright © 11/09/04 national optical & scientific instrument inc..
Base illuminator condenser iris diaphragm lever stage swing-out filter holder abbe condenser 1.25 n.A. Revolving nosepiece objective lenses specimen holder (mechanical stage) viewing head of microscope interpupillary scale widefield 10x/18 eyepiece knurled diopter rings (left & right sides) sliding ...
3 introduction thank you for your purchase of a national microscope. It is a 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 ...
4 assembly 1. Specimen holder: a. Rotate coarse focusing knob to move stage platform to its lowest position. B. Remove two knurled screws from mechanical stage platform. C. Place specimen holder on stage and using the two knurled locking screws, attach specimen holder to mechanical stage. 2. Rubber ...
5 c. Rotate coarse focusing controls until specimen comes into focus. D. Adjust fine focus controls until specimen is in sharp focus. E. Adjust diopter for possible difference in eyesight between user’s left and right eyes. If user has 20/20 vision, this adjustment should not be necessary. 1. Using ...
6 maintenance warning: for your own safety, turn power switch off, remove plug from ac power source and remove charging cord from microscope input before maintaining your microscope. If the power cord, recharger is worn, cut or damaged in any way, have it replaced immediately to avoid shock or fire ...
7 c. Replacing batteries: your microscope includes 3 rechargeable aa nickel metal hydride batteries. These may be recharged up to 500 times, but if you observe that a recharge is providing significantly less than 40 hours of operation. It is probably time to replace to batteries. Note that your micr...
8 optional accessories and parts: #610-045 wf15x eyepiece w/pointer #610-045r wf10x eyepiece with reticle, 10mm/100 divisions #800-001 replacement led light #802-003 auto cut-off recharger for rechargeable led microscope. #951 dustcover, 16” tall x 13”, heavy-duty vinyl with stitched seams #975-001 ...
