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National Optical & Scientific Instruments Inc. 

6508 Tri-County Parkway 

Schertz, TX 78154 

Phone (210) 590-9010   Fax (210) 590-1104 

 

 
 

INSTRUCTIONS FOR 

 

MODELS 131, 132, 131-CLED & 132-CLED 

 

COMPOUND MICROSCOPES 

 
 

 

 

NOTE:  These models share common features, nomenclature and 

 

 

 

 

method of operation.  The only difference are… 

 
 

 

 

 

Models 131 & 132 feature electric illumination from a 

 

 

 

 

 

tungsten bulb. 

 
 

 

 

 

Models 131-CLED & 132-CLED feature electric illumination from a 

 

 

 

 

 

LED bulb. 

 
 

 

 

 

Models 132 & 132-CLED have both 30

°

 inclined and vertical 

 

 

 

 

 

eyepiece tubes, each supplied with WF10x  

 

 

 

 

 

eyepiece. 

 
 
 

 

 
 

 
 
 
 
 
Copyright © 1/2/01 

National Optical & Scientific Instrument Inc. 

 

Summary of Contents for 131

Page 1: ... These models share common features nomenclature and method of operation The only difference are Models 131 132 feature electric illumination from a tungsten bulb Models 131 CLED 132 CLED feature electric illumination from a LED bulb Models 132 132 CLED have both 30 inclined and vertical eyepiece tubes each supplied with WF10x eyepiece Copyright 1 2 01 National Optical Scientific Instrument Inc ...

Page 2: ...STAGE CLIPS Two locked on clips hold specimen slide in place on stage Note Your microscope is already drilled and tapped to accept an optional mechanical stage Mechanical stage replaces stage clips and permits precise mechanical manipulation of the specimen slide 6 STAGE Platform of the microscope where the specimen slide is placed 7 CONDENSER LENS An 0 65 N A condenser lens fixed in center of sta...

Page 3: ...therwise you will not be able to see anything when looking through the microscope b Standard lenses provided with your microscope are a widefield 10x eyepiece two eyepieces supplied with models 132 and 132 CLED 4x 10x and 40x objectives The 40x objective lens has a special spring retractable mechanism which retracts slightly if front of lens comes in contact with the specimen slide See chart below...

Page 4: ... swab or lens tissue To clean objective lenses do not remove objectives from microscope Clean front lens element only following same procedure NOTE Fingerprints or other matter on the front lens element of the objective lens is the single most common reason that you will have difficulty in focusing the microscope Before having costly servicing done or before returning to National for warranty repa...

Page 5: ...tly Replace with a 110v 20 watt lamp with double contact medium bayonet base This is a standard commonly used replacement bulb National 800 102 Carefully wipe lamp to insure it is clean and free of all fingerprints Replace field lens housing assembly b Changing LED bulb on Models 131 CLED 132 CLED To open the illuminators field lens housing use 0 9mm L hex key wrench supplied with your microscope ...

Page 6: ...n also result from dirt on inside of eyepiece It is recommended that you have service technician clean inside of lens 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 bulb 131 CLED 132 CLED only 800 102 Replacement bulb 115v 20 watt tungsten D C medium base 131 132 only 801...

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