BestScope BS-2023B Instruction Manual
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BestScope BS-2023B Instruction Manual

Biological microscope
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Biological Microscope
Model: BS-2023B/T
Instruction Manual
BS-2023B
BS-2023T
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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Summary of Contents for BestScope BS-2023B

  • Page 1 Biological Microscope Model: BS-2023B/T Instruction Manual BS-2023B BS-2023T 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.

  • Page 2: Table Of Contents

    BestScope International Limited 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 9. Care and Maintenance............19...

  • Page 3: Safety Notice

    BestScope International Limited 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.
  • Page 4 BestScope International Limited 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 BestScope International Limited move the collector when the bulb is lightened. Do not touch the bulb within 30 minutes after it has been turned off. Make sure the bulb has been be cooling enough time (at least 30 minutes) to avoid scald.

  • Page 6: Structure

    BestScope International Limited 1. Structure...

  • Page 7: Application

    BestScope International Limited 2. Application BS-2023 biological microscope is 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. This product, with modern design, good -looking appearance, adopts many advanced structure &technology in order that the clients can operate the instrument conveniently and safely.

  • Page 8: Technical Parameters

    BestScope International Limited 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

    BestScope International Limited 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

    BestScope International Limited 5. Configuration Item Content Piece Microscope body ( including stage, nosepiece, coaxial coarse and 1 set fine focusing adjustment,bracket for condenser, adjusting power 1pc supply,LED bulb and normal collector) Siedentopf binocular 1 pc Condenser ( with iris diaphragm, without auxiliary lens)

  • Page 11: Assemblage

    BestScope International Limited 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.
  • Page 12 BestScope International Limited 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 BestScope International Limited 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.

  • Page 14: Operation

    BestScope International Limited 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 BestScope International Limited 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 is dispersion image in the view field, please remove the condenser a little bit of up and down to make the dispersion image disappeared 7.
  • Page 16 BestScope International Limited 10. Observing with oil immersion There is_ oil_ marked in the oil immersion objective. Please use the oil immersion supplied by the manufacturer between the objective and cover glass. 1_Operation Condenser_ Remove the slide back and fall the condenser down a little.
  • Page 17 BestScope International Limited _ 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.Adjusting the coarse focusing knob’s tension The tension of coarse focusing knob is adjustable. Please turn the tension controlling ring of the coarse focusing knob clockwise then the tension will be increased.

  • Page 18: Trouble Shooting

    BestScope International Limited 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.
  • Page 19 BestScope International Limited position Image tinged yellow Blue filter not used Use blue filter Insufficient illumination brightness Condenser aperture too small Readjust aperture Condenser position too low Correct position Dirt or dust on the lens (condenser, Cleaning objective, eyepiece, collector) 2.

  • Page 20: Care And Maintenance

    BestScope International Limited 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).

This manual is also suitable for:

Bs-2023t

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