BestScope BS-2044 Series Instruction Manual
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BestScope BS-2044 Series Instruction Manual

Biological microscope
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BestScope International Limited
Version No.: V1.2
BS-2044 Series
Biological Microscope
Instruction Manual
BS-2044B
BS-2044T
BS-2044FT(LED)
This manual expatiates the using method, troubleshooting and maintenance about
BS-2044 series biological microscope. Please study this manual thoroughly before
operating, and keep it with the instrument. The manufacturer reserves the rights to
the modifications by technology development. On the basis of operation ensured,
technical specifications may be subject to changes without notice.
-1-

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  • Page 1 BS-2044FT(LED) This manual expatiates the using method, troubleshooting and maintenance about BS-2044 series biological microscope. Please study this manual thoroughly before operating, and keep it with the instrument. The manufacturer reserves the rights to the modifications by technology development. On the basis of operation ensured,...

  • Page 2: Table Of Contents

    BestScope International Limited Contents BS-2044 Series Before Use 1. Components ..........................1 2. Assembling ..........................5 2-1 Assembling Scheme ........................5 2-2 Assembling Steps ......................... 7 3. Operation ............................9 3-1 Set Illumination..........................9 3-2 Place the Specimen Slide ......................9 3-3 Adjust the Focus .......................... 9 3-4 Adjust the Focusing Tension.......................

  • Page 3: Before Use

    BestScope International Limited Before Use BS-2044 Series 1. Operation Notice 1. As the microscope is a high precision instrument, always operate it with care, and avoid physical shake during the operation. 2. Do not expose the microscope in the sun directly, either not in the high temperature, damp, dust or acute shake.
  • Page 4 BestScope International Limited BS-2044 Series 2. Maintenance 1. Wipe the lens gently with a soft tissue. Carefully wipe off the oil marks and fingerprints on the lens surfaces with a tissue moistened with a small amount of 3:7 mixture of alcohol and ether or dimethylbenzene.

  • Page 5: Components

    BestScope International Limited 1. Components BS-2044 Series Objective Nosepiece Binocular Head Eyepiece Objective Tension Adjustment Ring Stage Coarse Koehler Illuminator Focusing Condenser Knob Focus Arm Light Adjustment Fine Focusing Koehler Illuminator Knob Knob Condenser...
  • Page 6 BestScope International Limited BS-2044 Series Trinocular head Eyepiece Lock-screw Objective Nosepiece Objective Stage Focus Arm Koehler Illuminator Condenser Fine Focusing Knob Koehler Illuminator Condenser Light Source Power Switch Coarse Focusing Knob...
  • Page 7 BestScope International Limited BS-2044 Series LED Fluorescence Microscope Fluorescence Filter Block Light Adjustment Eyepiece Trinocular Head Adjustment knob Knob LED Fluorescence Illuminator LED Fluorescence indicator Lock-screw Light Shield Objective Nosepiece Objective Stage Focus Arm Koehler Illuminator Condenser Fine Focusing Koehler Illuminator...
  • Page 8 BestScope International Limited BS-2044 Series Binocular Head LED Fluorescence Illuminator Eyepiece Objective Nosepiece LED Fluorescence indicator Light Shield Objective Stage Koehler Illuminator Condenser Koehler Illuminator Condenser Fine Focusing Coarse Focusing Light Adjustment Focus Arm 组 Knob Knob Knob...

  • Page 9: Assembling

    BestScope International Limited 2. Assembling BS-2044 Series 2-1 Assembling Scheme Following is the Assembling Scheme, and the numbers denote the assembling order. ★ Before assembling, make sure there is no dust or dirt. Assemble carefully and do not scrap any part or touch the glass surface.
  • Page 10 BestScope International Limited BS-2044 Series LED Fluorescence Microscope Binocular Head Eyepiece Transformer Light Shield LED Fluorescence Illuminator Power Cord Objective Condenser Light Source...

  • Page 11: Assembling Steps

    BestScope International Limited BS-2044 Series 2-2 Assembling Steps 2-2-1 Assemble the Condenser Assemble Koehler Illuminator Condenser 1. Rotate the coarse focusing knob① to raise the stage to the highest position (see Fig. 4). 2. Rotate the condenser up-down knob② to lower the bracket of condenser to the suitable position.
  • Page 12 BestScope International Limited BS-2044 Series 2-2-4 Assemble light source 1. Align the oriented pin① and power pin② on the light source to oriented holder③ and power socket④, and then push light source into arm smoothly and plug it thoroughly (see Fig. 7).

  • Page 13: Operation

    BestScope International Limited 3. Operation BS-2044 Series 3-1 Set Illumination 1. Put through the power and turn on the main power switch to“—”. 2. Adjust the light adjustment knob① until the illumination is comfortable for observation. Rotate the light adjustment knob clockwise to raise the voltage and brightness.

  • Page 14: Adjust The Focusing Tension

    BestScope International Limited BS-2044 Series 3-4 Adjust the Focusing Tension If the handle is very heavy when focusing or the specimen leaves the focus plane after focusing or the stage declines itself, please adjust the tension adjustment ring① (see Fig. 12).

  • Page 15: Center The Condenser

    BestScope International Limited BS-2044 Series 3-7 Center the Condenser 1. Rotate the condenser up-down knob① to raise it to the highest position (see Fig. 16). 2. Rotate the objective 10X to the light path and focus the specimen. 3. Rotate the field diaphragm adjustment ring②...

  • Page 16: Adjust The Aperture Diaphragm

    BestScope International Limited BS-2044 Series 3-9 Adjust the Aperture Diaphragm 1. The aperture diaphragm decides the numerical aperture of the illumination. Only when the N.A. of illumination is matching with the N.A. of the objective, it can obtain better resolution and contrast, and also increase the depth of field.

  • Page 17: Use The Filter

    BestScope International Limited BS-2044 Series 3-11 Use the Filter Filter can make the background more suitable and increase the contrast (see Fig. 21). ★ There are three kinds of filter: blue, green and yellow. ★ Place the filter’s rough side downward.

  • Page 18: Assemble The Photography Device

    BestScope International Limited BS-2044 Series 3-14 Assemble the Photography Device 1．Loosen the lock-screw ① on the trinocular head and get down the dust-cover ② of the trinocular. 2．Insert photography device to the trinocular. Screw on the lock-screw① (see Fig.24). 3．Loosen the lock-screw ③ on the photo tube and get down the photo tube ④...

  • Page 19: Assembling And Operation Of Accessories

    BestScope International Limited 4. Assembling and Operation of Accessories BS-2044 Series 4-1 Assembling and Operation of Phase Contrast Flapper 1. Keep the phase contrast flapper① face up (upward the face with word), insert it from left to right into the condenser flapper socket as the direction of the arrow pointed (see Fig.

  • Page 20: Assembling And Operation Of Dark Field Flapper

    BestScope International Limited BS-2044 Series 4-2-1 Centering Halo In phase contrast microscopy observation, slide the aperture diaphragm lever① to the most left as the direction of the arrow pointed (always keep aperture diaphragm at maximum). (see Fig. 1. Put speciman on the stage and focus.

  • Page 21: Assembling And Operation Of Simple Polarizing

    BestScope International Limited BS-2044 Series 4-4 Assembling and Operation of Simple Polarizing 1. Simple polarizing includes analyzer② and polarizer③ (see Fig. 30). 2. Unplug analyzer dust-cover① from the arm, and insert analyzer face up. 3. Put the polarizer into the condenser④ groove as the figure shows.
  • Page 22 BestScope International Limited BS-2044 Series 3. Put the binocular/ trinocular Head ① on the LED fluorescence illuminator ②, and fix it with the lock screw ③ by the hexagon spanner. (See Fig. 33) 4．When observing the fluorescence slide, should pull the light barrier① left into light path to stop Fig 33 transmission light.
  • Page 23 BestScope International Limited BS-2044 Series 4-6-2 Power supply for LED fluorescence set a) Transformer power supply. First insert one end of transformer① into fluorescent illuminator socket②. Then insert the other end directly into electric outlet. (See Fig.36) ★ Before connecting an external transformer, should rotate the light adjustment knob③...

  • Page 24: Troubleshooting

    BestScope International Limited 5. Troubleshooting BS-2044 Series As the performance of microscope can’t play fully due to unfamiliar operations, the table below can provide some solutions. Problem Cause Solution 1. Optical Part Field diaphragm is not large enough. Enlarge the field diaphragm.
  • Page 25 BestScope International Limited BS-2044 Series Problem Cause Solution Adjust the interpupillary (6) The eyes feel Interpupillary distance is wrong. distance. tired easily. The right field of view Diopter adjustment is wrong. Adjust the Diopter. doesn’t superpose The eyepieces for the right are different Use the same eyepieces.

This manual is also suitable for:

Bs-2044bBs-2044tBs-2044ft(led)

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