BestScope BS-5070B User Manual

Polarizing microscope

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BS-5070B/T

BS-5070BTR/TTR

Polarizing Microscope

User Manual

To obtain optimum performance and to familiarize yourself fully with the use of your

microscope, we recommend that you read this manual thoroughly before use. Retain this

instruction manual in an easily accessible place near the work desk for future reference.

BS-5070B/T do not have reflected illumination system, for other parts, they are the same

as BS-5070BRT/TTR, the operation is also similar.

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Summary of Contents for BestScope BS-5070B

Page 1 Retain this instruction manual in an easily accessible place near the work desk for future reference. BS-5070B/T do not have reflected illumination system, for other parts, they are the same as BS-5070BRT/TTR, the operation is also similar.
Page 2: Table Of Contents
BestScope International Limited ……………………………………………………………1 Safety notice ……………………………………………4 Structure and nomenclature …………………………………7 Technical parameter and specification …………………………………………………………9 Configuration …………………………………………………………10 Assemblage ……………………………………………………………13 Operation …………………………………………………………19 Maintenance ………………………………………………………20 Troubleshooting...
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 6. Use the space parts supplied by the manufactures The bulb, fuse and electronic cord have been assembled already in the factory and please make sure to use the spare parts of them supplied by the manufacturers.
Page 5 BestScope International Limited Mark Meaning 1.Hot surface, don_t touch with your hands 2.Read the instruction manual carefully before operating the micuscop unproper operation will cause hurt or dameger to the operator and instrumen 3.Switch on 4.Switch off...
Page 6: Structure And Nomenclature
BestScope International Limited 1. Structure and nomenclature Bertrand lens unit Eve fubes fixture Bertrand lens centering screw Bertrand lens focusing plate Analyzer Bertrand lens unit clamping knob Eyepiece Cross Eyepiece Binocular head Bertrand lens unit Compensator Objective Reflected illumination system...
Page 7 BestScope International Limited The top lens of the condenser Objective centering screw Consender movement Clamping knob screw knobscrew Coarse focusing knob screw Condenser centering screw Polarizer knob screw Fine focusing Knob screw Fine focusing knobscrew Coarse focusing knob moment adjusting ring screw...
Page 8 BestScope International Limited Mirror selector lever Lamp house Field stop Aperture stop centering screw centering screw Field stop Aperture stop Color filter Polarizer Lamp house knob knob Knob screw Power plug Power switch...
Page 9: Technical Parameter And Specification
BestScope International Limited 2. Technical parameter and specification 2.1 Optical system: infinity optical system 2.2 Objectives: stress-relieving infinity plan objectives Magnification Cover glass thickness(mm) 0.10 0.17 0.25 0.17 0.40 0.17 0.65 0.17 0.80 0.17 100X (OIL) 1.25 0.17 0.65 100X 2.3 Eyepiece:...
Page 10 BestScope International Limited Centerable quintuple 2.6 Rotatable stage： Diameterф160mm，360°scale。Minimum reading 6’by means of vernier scale 2.7 Coaxial Coarse and Fine Focusing System, Sensitivity and Graduation of Fine Focus: 0.002mm Focusing movement range：24mm 2.8 Illumination system: Transmission light：Halogen lamp 12V20W Reflected light：Halogen lamp 12V50W 2.9 Eye tubes:...
Page 11: Configuration
BestScope International Limited 3. BS-5070BTR/TTR Configuration 10X eyepiece 10X eyepiece with scale of crosshair 10Xcrisscross eyepiece mesh eyepiece camera λ —λ/4 test plate Quartz wedge test plate Hexagen ring spanner 2.5mm、2mm Centering spanner Reflected illumination system Objective For transmitted light...
Page 12: Assemblage
BestScope International Limited Assembly Diagram 4.1 Removing the clamps for transportation The clamps fix the stage and focusing adjustment firmly during transportation. Handle the grooves beside collector and pull it out. Remove the clamps by wrenches. 4.2 Reflected illumination system Mount the Illumination System①...
Page 13 BestScope International Limited 4.5 Eyepiece The eyepiece is inserted into the left eye lens barrel, another cross eyepiece (positioning) alignment righteyepiece tube within the gap insertion, the installation should be pushed down to ensure thatthe adjustable eyepiece, eye baseline cross divisional position unchanged.
Page 14: Operation
BestScope International Limited The silkscreen “- -” means polarization direction is north and south. “• • ” means polarization direction is west and east. 4.11 Polarizing ruler By in case of need, install the polarizing ruler on the revolving round stage.
Page 15 BestScope International Limited switch to the “II” (on) position. Turning the brightness adjustment knob clockwise, the voltage raise, and the brightness strengthen; turning with the anti-direction, the voltage decline, and the brightness weaken. 5.2 Interpupillary range Adjust the siendentipf binocular to make sure that view field in the right and left eyepiece is consistent.
Page 16 BestScope International Limited observation method. T: Transmission light observation R: Reflected light observation 5.4Adjusting the optical axis The revolving nosepiece is centerable. Before leaving the factory, the optical axis of the objective and the center of stage has been adjusted coaxial, please do not adjust them unless necessary.
Page 17 BestScope International Limited 360°rotatable, turn anyone until complete extinction is obtained. Place the specimen for orthoscopic observation. Insert test plates for further observation test and study. 5.6 Adjusting the aperture stop axis When using transmitted light illumination, revolve the Bertrand lens dial to “B”...
Page 18 BestScope International Limited Field iris diaphragm image The image of aperture iris diaphragm Field of view of eyepiece 5.7.2 Centering the Aperture Iris Diaphragm (AS) 1) Slide the mirror selector lever to “R”. 2) Engage the 10X objective by rotating the revolving nosepiece, place the specimen on the stage and adjust approximate focusing.
Page 19 BestScope International Limited descending a color sequence.For example, a mineral flakes interference color is a purple, join the mica plate, if the radius is parallel, the interference color is elevated a color sequence and change to a two LAN; if the synonym radius parallel, the interference color to reduce a color change to level orange.In general, mica plate...
Page 20 BestScope International Limited 5) While pushing down the bulb clamping levers, hold the halogen bulb with gloves or a piece of gauze, insert the bulb pins into the sections as far as they will go. Then return the lamp clamping lever gently back to the original position to clamp the bulb.
Page 21: Maintenance
BestScope International Limited 3) Handle the grooves in condenser and pull it out. Pull out the original bulb 4) Replace the bulb by gloves or cloth material then insert the bulb into the socket entirely. 5) Pull the condenser back to its original position. Connect the electronic cord to the power supply 5.10.3 Replacement for fuse...
Page 22: Troubleshooting
BestScope International Limited The contaminations on the prism, as finger mark and oil, could be gently wiped with a piece of soft cloth or tissue paper, gauze which has been immersed in pure alcohol or xylene. (Note that the alcohol and the xylene are all burned easily, do not let them near the fire, and use them in a drafty room as possible as you can.)
Page 23 BestScope International Limited Analyzer and/or polarizer not Engage analyzer and polarizer in installed correctly light path. Dirt or dust is visible Dirt/dust on eyepiece in the field of Clean thoroughly. Dirt/dust on specimen view. Revolving nosepiece is not in a Set it in a click position.
Page 24 BestScope International Limited PROBLEM REASON FOR PROBLEM SOLUTION tension adjustment Loose properly The coarse focus knob is hard collar is too tight to run Pre-focusing lever Release pre-focusing lever. locked. Stage drifts down by itself or Tension adjustment ring is Tighten ring to an optimum focusis lost during observation.

This manual is also suitable for:

Bs-5070t Bs-5070btr Bs-5070ttr