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National 160 SERIES, Instructions Manual, Page: 2 / 12

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National 160 SERIES Instructions Manual Download Page 2

Models 160 (monocular head), 161 (dual head), 162 (binocular head), 163 (trinocular head), all have the same stand 
and stand features…only the head portion differs…illustrated is Model 162. 
 

 

Sliding interpupillary adjustment, 

grips located on both left and right 

side of diopter scale 

Mark on side of eyepiece tube for 

indexing diopter reading 

Knurled diopter ring 

Knurled head locking screw 

 

Arm of microscope stand 

Two knurled locking screws for 

securing specimen holder to stage 

Light intensity 

control knob 

Knobs controlling X and Y 

movement of mechanical 

stage 

Fine focus knob 

Coarse focus knob 

Base 

Illuminator condenser 

Abbe condenser locking screw 

Objective lenses 

Revolving nosepiece 

Viewing head of microscope 

Widefield 10x/18 
eyepiece 

Interpupillary scale 

Specimen holder 

(mechanical stage) 

Stage 

Abbe condenser 1.25 N.A. 

Iris diaphragm lever 

Filter holder for 32mm filter 

 

 

 

ON/OFF switch 

AC line cord 

Fuse 

Control knob for 
Abbe condenser 

Tension adjustment 

knob 

Recess for 45mm filter 

Summary of Contents for 160 SERIES

Page 1: ...ific Instruments Inc 11113 Landmark 35 Drive San Antonio Texas 78233 Phone 210 590 9010 Fax 210 590 1104 INSTRUCTIONS FOR 160 SERIES COMPOUND BIOLOGICAL MICROSCOPES Copyright 1 2 01 National Optical Scientific Instrument Inc ...

Page 2: ...roscope stand Two knurled locking screws for securing specimen holder to stage Light intensity control knob Knobs controlling X and Y movement of mechanical stage Fine focus knob Coarse focus knob Base Illuminator condenser Abbe condenser locking screw Objective lenses Revolving nosepiece Viewing head of microscope Widefield 10x 18 eyepiece Interpupillary scale Specimen holder mechanical stage Sta...

Page 3: ...ner or materials until all components are accounted for Save packing container in case microscope needs transporting to another location or shipped for repairs Components are packed within containers as indicated below 160 Monocular A Stand B Head one eyepiece one rubber eyeshield four objectives condenser specimen holder 32mm blue yellow and green filters 45mm neutral filter spare fuse dust cover...

Page 4: ...omponents making certain that lens surfaces do not come in contact with dust dirt fingerprints Damage to optical surfaces can result from such contaminants and reduce image quality II ASSEMBLY A Condenser Rotate focusing knob to move stage platform to its highest position Loosen the Abbe condenser locking screw and insert Abbe condenser into the mounting ring Tighten locking screw B Specimen holde...

Page 5: ...inocular port E Eyepieces Remove the dust caps from eyepiece tubes Avoid touching any lens surface Model 160 Using a small jewelers cross head screwdriver loosen the eyepiece locking screw E 1 Insert eyepiece into the eyepiece tube Tighten the eyepiece locking screw Model 161 Using a small jewelers cross head screwdriver loosen the eyepiece locking screw E 1 on inclined eyepiece tube and vertical ...

Page 6: ...ontrols b Using left eye peer into the left eyepiece tube Adjust sharpness of image by turning diopter adjustment located on left eyepiece tube 6 Adjusting the aperture opening of iris diaphragm Iris diaphragm should not be used to control the brightness of illumination use light intensity control knob to adjust light level Iris diaphragms are designed to help achieve high resolution of specimen a...

Page 7: ... CCTV camera to dual head model 161 optional accessory 930 161V video adaptor is required The adaptor has a 0 5x lens that assures image parfocality when viewed through a video monitor Your video adaptor can be utilized as a type C or CS adaptor If your CCTV camera has a inch chip leave CS adaptor screwed onto the C adapter If your CCTV camera has a 1 3 inch chip remove the CS adaptor by grasping ...

Page 8: ... of image is directed to binocular eyepieces 70 directed to trinocular port B To mount SLR camera an optional accessory SLR adaptor c is required Listed below is the optional accessory SLR adaptor which includes a 2 5x photo lens which needs to be inserted into the SLR adaptor A wide range of T mounts are available from any camera store 930 163 SLR adaptor with 2 5x photo lens fits Model 163 only ...

Page 9: ...ry to either replace or remove the top black knurled ring in order for the video adaptor to be compatible with the chip size of your CCTV camera VI MAINTENANCE WARNING FOR YOUR SAFETY TURN SWITCH OFF AND REMOVE PLUG FROM POWER SOURCE OUTLET BEFORE MAINTAINING YOUR MICROSCOPE TO AVOID SHOCK OR FIRE HAZARD IF POWER CORD IS WORN CUT OR DAMAGED IN ANY WAY HAVE IT REPLACED AT ONCE A OPTICAL MAINTENANCE...

Page 10: ...alogen bulb available from the dealer from which you purchased your microscope This is a common microscope bulb Osram 64425 f Make certain that new bulb is clean as fingerprints on bulb can affect light transmission Grasping bulb gently with a tissue or cloth insert pins straight into lamp socket g Carefully clean lamp to assure that it is clean and free of all fingerprints h Close hinged door and...

Page 11: ...se holder Have qualified service technician repair outlet IMAGE QUALITY PROBLEM REASON FOR PROBLEM SOLUTION No image Nosepiece not indexed properly Light too bright Move revolving nosepiece until objective lens clicks into position Adjust light intensity control to a lower position Poor resolution Image not sharp Objective lens dirty Eyepiece lens dirty Slide upside down Cover slip on specimen sli...

Page 12: ... one year The warranty does not cover damage resulting from abuse or misuse repairs or alterations performed by other than authorized repair technicians or damage occurring in transit The warranty does not cover bulbs power supplies rechargers batteries fuses cords or add on accessories such as mechanical specimen holders that are not built into the microscope stage as an integral part of original...

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