National 446TBL User Manual Manual

2, National 446TBL Eyepieces Head of microscope Knurled diopter collar Post Objective turret Head position locking screw Focusing knob Base Stage Plate Stage Clips Top light housing Head retaining screw (one on each side) Light control switches Power switch…

7, Page 7 OPTIONAL ACCESSORIES AND PARTS: #615-400 WF15X Eyepieces (pair), increases magnification 50% #800-400 12v 10w Replacement Bulb #801-050 Replacement fuse for 220v version, 0.5 amp #801-100 Replacement fuse for 117v version, 1.0 amp #940-410 Frosted glass stage plate, 8…

6, Page 6 3. ELECTRICAL MAINTENANCE The extent of electrical maintenance, by other than a qualified technician, should be bulb or fuse replacement. BE CERTAIN TO TURN SWITCHES OFF AND REMOVE PLUG FROM POWER SOURCE OUTLET BEFORE CHANGING BULBS. Both top and bottom lights use …

3, Page 3 Stereoscopic microscopes are used for viewing 3-dimensional objects, inspection or assembly of small parts, and for dissection of biological specimen. They provide an upright, unreversed image which permits easy manipulation of the object being viewed while looking throu…

4, Page 4 5. There are three rocker type light controls located on top surface of microscope base. MAIN = Turns power on and off “I” = Turns incidental light on (top illumination) “T” = Turns transmitted light on (substage illumination) REMEMBER to never operate bottom (tr…

1, National Optical & Scientific Instruments Inc. 6508 Tri-County Parkway Schertz, Texas 78154 Phone (210) 590-9010 Fax (210) 590-1104 INSTRUCTIONS FOR MODELS #446TBL, #447TBL AND #448TBL STEREOSCOPIC MICROSCOPES …