background image

For optimum viewing satisfaction, follow these simple procedures.  Nomenclature used to describe 
components and controls can be identified by referring to the diagram at left. 
 

UNPACKING 
 

1.  Carefully remove microscope, WF10x eyepiece, dustcover, 2mm “L” hex wrench (for rack stop 

adjustment), 0.90mm “L” hex key wrench (for eyepiece socket set screw and for lamp replacement). 
Always handle and move microscope by securely holding the arm of microscope.  Avoid touching any of 
the lens surfaces while handling the microscope.  Dust, dirt, or fingerprints can damage the delicate lens 
surfaces or adversely affect image quality. 

 
2.  Examine packing material before you discard it.  Retain the styrofoam container in case you need to 

transport, store, or return the microscope for service.  If it becomes necessary to ship the microscope for 
any reason, pack it in the styrofoam container, and then pack the styrofoam in another corrugated 
shipping container for optimum protection.  Use of the styrofoam alone will not provide adequate 
protection in transit, and will void your warranty. 

 
 

DESCRIPTION OF COMPONENTS

 

 
1.  EYEPIECE  (ocular lens)  Lens closest to the eye, magnifies the primary image formed by the objective 

lens.  The eyepiece is equipped with a “pointer” that rotates as the eyepiece is turned. 

 
2.  OBJECTIVE TURRET (nosepiece)  Revolving turret which holds objective lenses, permits changes of 

magnification by rotating different powered objective lenses into optical path. 

 
3.  OBJECTIVE LENS    Lens closest to the object being viewed, forms first magnified image of the 

specimen. 

 
4.  STAGE CLIPS   Two linked single control locked-on clips hold specimen slide in place on stage. 
 
5.  STAGE    Platform of the microscope where the specimen slide is placed. 
 
6.  CONDENSER LENS    A specially designed condenser lens, fixed in center of stage, condenses light 

rays from substage illumination and fills the back lens element of objective lens to improve image 
resolution. 

 
7.  DISC DIAPHRAGM   Rotating disc located below stage with holes of various apertures, designed to help 

achieve optimum resolution of the objective lens.  Larger apertures used for higher magnifications, and 
smaller apertures used for lower magnifications. 

 
8.  SAFETY RACK STOP    When properly adjusted, controls maximum upward travel of stage.  Prevents 

higher power objectives from breaking specimen slides, prevents damage to objective lenses.  This stop 
has been pre-adjusted at the factory. 

 
9.  FOCUSING KNOBS    Coarse focusing knobs (larger knobs) located on each side of arm, raise or lower 

stage to bring specimen image into focus.  Fine focus knobs (smaller knobs) located on each side of arm 
permit more precise image adjustment. 

 
10.  ILLUMINATION    Built-in substage electric LED illuminator provides constant, reliable, pre-focused 

illumination equal to a 20-watt tungsten bulb.   

 

ASSEMBLY

 

 
Loosen 0.90mm socket set screw located in eyepiece tube and remove eyepiece dust cap.  Insert WF10x 
eyepiece into eyepiece tube and tighten 0.90mm socket screw to prevent removal of eyepiece. 
 

Summary of Contents for 205-RLED

Page 1: ...Instruments Inc 6508 Tri County Parkway Schertz Texas 78154 Phone 210 590 9010 Fax 210 590 1104 INSTRUCTIONS FOR MODEL 205 RLED formerly Model 205 COMPOUND MICROSCOPE Copyright 4 06 2010 National Optical Scientific Instrument Inc ...

Page 2: ...epiece Objective lens Linked single control stage clips Condenser lens Stage Illuminator field lens housing Base Tension adjustment Coarse focus knob Fine focus knob Rheostat control Safety rack stop set screw Disc diaphragm Eyepiece Locking screw On Off Switch Recharging socket ...

Page 3: ...ing different powered objective lenses into optical path 3 OBJECTIVE LENS Lens closest to the object being viewed forms first magnified image of the specimen 4 STAGE CLIPS Two linked single control locked on clips hold specimen slide in place on stage 5 STAGE Platform of the microscope where the specimen slide is placed 6 CONDENSER LENS A specially designed condenser lens fixed in center of stage ...

Page 4: ...es are receiving maximum charge After batteries are charged the red LED indicator lamp will turn to green and charger automatically switches to trickle charge The charger can be left plugged in but for safety reasons it is a good idea to disconnect the charger from the AC wall outlet and the output cord from recharging socket after 12 hours Batteries and charger may feel warm when charging and unp...

Page 5: ...TE Care must be taken when rotating the 40x objective into place This lens has a spring retractable mechanism which retracts slightly into its housing if the front of the lens strikes the specimen slide With fine focus adjustment at mid range the rack stop has been adjusted at the factory to assure the 40x lens will clear the thickness of a normal specimen slide and cover slip However if the rack ...

Page 6: ...he tension adjustment collar is located between arm and coarse focus knob on right side of microscope With 0 9mm L type key wrench loosen the set screw located in the hole on tension adjustment collar turn collar clockwise to tighten tension counter clockwise to loosen tension Use of a wide rubber band will provide a better grip on the tension adjustment collar After adjusting tighten the set scre...

Page 7: ...ast up to 50 000 hours so you don t have to do this exercise very often To open the illuminator field lens housing use 0 9mm L type hex key wrench supplied with your microscope Loosen hex screws on lens housing Remove lens housing to expose LED bulb Remove bulb by grasping the plastic base of bulb and gently pulling straight up Insert new LED bulb replace lens housing and tighten hex screws to sec...

Page 8: ...for rechargeable LED microscope 951 Dustcover 16 tall x 13 heavy vinyl with stitched seams 975 001 Carrying case anodized aluminum fabric lining accessory pockets Velcro straps keyed lock WARRANTY 5 YEAR LIMITED WARRANTY Please see our website www nationaloptical com for complete warranty details and exclusions www microscopeworld com info microscopeworld com 800 942 0528 ...

Reviews: