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STEINDORFF
Biological Microscope
Model: S-271/ S-273
Instruction Manual
S-273
S-271
To ensure safety and obtain optimum performance and familiarize yourself with the use of this
microscope, we recommend that you read this manual thoroughly before operating the microscope.
Retain this instruction manual in an easily accessible place near the microscope for further reference.
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Table of Contents
Related Manuals for STEINDORFF S-271
Summary of Contents for STEINDORFF S-271
- Page 1 ® STEINDORFF Biological Microscope Model: S-271/ S-273 Instruction Manual S-273 S-271 To ensure safety and obtain optimum performance and familiarize yourself with the use of this microscope, we recommend that you read this manual thoroughly before operating the microscope. Retain this instruction manual in an easily accessible place near the microscope for further reference.
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Page 2: Table Of Contents
® STEINDORFF Contents Safety notice ................2 1. Structure ................5 2. Application ................6 3. Technical parameters ............. 7 4. Nomenclature ................ 8 5. Configuration ................. 9 6. Assemblage ................10 7. Operation ................13 8. Trouble Shooting ..............17... -
Page 3: Safety Notice
® STEINDORFF Safety notice 1. Transportation As microscope is a precision instrument, handle with care, avoiding impact or abrupt movement during transportation. Do not push or pull the microscope during using, otherwise the precision for image will be reduced. 1_Hold the curve and keep the microscope in balance 2_Do not hold the focusing knob, eyepiece tubes and stage as these parts are movable. - Page 4 ® STEINDORFF 4. Clamp The clamps fix the microscope firmly during transportation. Please remove them before using. 5. Do not take the microscope apart As it will be damaged. Such operations might have bad effect on the performance and make user get an electric shock or injured.
- Page 5 ® STEINDORFF 9. Temperature for illumination When you use the halogen bulb, there will be high temperature when the bulb is lightened, never move the collector when the bulb is lightened. Do not touch the bulb within 30 minutes after it has been turned off.
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Page 6: Structure
® STEINDORFF 1. Structure... -
Page 7: Application
STEINDORFF 2. Application S-271 / S-273 biological microscope are designed for clinical experiments and routine medical examination as well as for teaching and research purpose in biology, pharmaceutical, and bacteriology observation in medical and hygienic establishments, chemical laboratory, research institute and college, ect. -
Page 8: Technical Parameters
® STEINDORFF 3. Technical parameters 1). Specification 1. Optical system: Infinite Optical System 2. Illumination: inserted transmitted illumination, 3W LED bulb(standard outfit) Input voltage: 100V~240V 50/60Hz Voltage undulation 10% Rating 100V~240V 50/60Hz 0.8A Fuse 250V 1A delayed model, 5X20 mini type fuse 2pcs 3. -
Page 9: Nomenclature
® STEINDORFF 4. Nomenclature 1)Total magnification Total magnification = Eyepiece’s magnification X objective’s magnification 2)Numerical aperture (N.A.) N.A. value will affect resolution and image’s brightness, it is the leading parameter for objectives. N.A.= n X sina n stands for refractive index of the medium between objective and specimen or condenser (air or oil immersion) a stands for half angle of max. -
Page 10: Configuration
® STEINDORFF 5. Configuration Item Content Piece Microscope body ( including stage, nosepiece, coaxial coarse and fine 1 set focusing adjustment,bracket for condenser, adjusting power supply, LED bulb and normal collector) Siedentopf binocular/trinocular head 1 pc Condenser ( with iris diaphragm, without auxiliary lens) -
Page 11: Assemblage
® STEINDORFF 6. Assemblage Please read the safety notice carefully before assembly and make the assembly according to the following steps. Tools: wrench (2 pcs) 1. Checking the input voltage There is correct input voltage in the label on microscope. Make sure the voltage in your position is right. - Page 12 ® STEINDORFF 3. Mount the binocular head Loosen the fixing screw in the eye tubes and insert the binocular head into the eye tubes. Then tighten the screw. 4. Mount the blue filter Take out the filter from the bottom of condenser and mount it in the bracket then move the bracket into the condenser.
- Page 13 ® STEINDORFF 2_Objectives The objectives have been mounted in the microscope before shipment. Take off the specimen from the stage and make the stage lower when you replace the objectives. Handle the objective with your two hands and remove it. Be carefully do not make it fall off.
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Page 14: Operation
® STEINDORFF 7. Operation 1. Illumination Turn on the power supply (turn the switch to -) ,then the bulb will be on. The lightness can be adjusted by turning the adjusting knob. 2. Interpupillary range Adjust the siendentopf binocular to make sure that view field in the right and left eyepiece is consistent. - Page 15 ® STEINDORFF 4_Repeat the above steps till sharp image can be observed by left and right eyepiece at the same time. 6. Adjusting the upright position for condenser Turn the lifting knob for condenser till it reaches the top position then fall it a little bit down. If there...
- Page 16 ® STEINDORFF some position) If the objective has been changed, please move the shaft to the position with the same value which is in the objective in the optic path and this will make ideal contrast 10. Observing with oil immersion There is_ oil_ marked in the oil immersion objective.
- Page 17 ® STEINDORFF 4_Attention _ Keep the bottle for oil immersion sealed as much as possible and check it periodically _ Never press the bottle overly as it may caused oil gushed out of the bottle _ Clean the out surface of the bottle from remanent oil 11.
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Page 18: Trouble Shooting
® STEINDORFF 8. Trouble Shooting If difficulties are encountered in the course of operation, and no major instrument functions can initially be detected, please recheck the symptoms, referring to the tables provided below, before contacting the service department representative. 1. Optical... - Page 19 ® STEINDORFF position Image tinged yellow Blue filter not used Use blue filter Insufficient illumination Condenser aperture too small Readjust aperture brightness Condenser position too low Correct position Dirt or dust on the lens (condenser, Cleaning objective, eyepiece, collector) 2. Mechanical...
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Page 20: Care And Maintenance
® STEINDORFF 9. Care and Maintenance 1. Cleaning Lenses Dust is best removed with a soft brush or gauze. More persistent dirt, such as fingerprints, grease and oil, may be removed with soft cotton, lens tissue, or gauze lightly moistened with absolute alcohol (ethyl or methy alcohol).
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