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Olympus CX31 - User Manual

Olympus CX31
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This instruction manual is for the Olympus Biological Microscope Model CX31. To ensure
the safety, obtain optimum performance and to familiarize yourself fully with the use of this
microscope, we recommend that you study this manual thoroughly before operating the
microscope. Retain this instruction manual in an easily accessible place near the work
desk for future reference.
INSTRUCTIONS
CX31
BIOLOGICAL MICROSCOPE
This instruction manual is for the Olympus Biological Microscope Model CX31. To ensure
the safety, obtain optimum performance and to familiarize yourself fully with the use of this
microscope, we recommend that you study this manual thoroughly before operating the
microscope. Retain this instruction manual in an easily accessible place near the work
desk for future reference.
INSTRUCTIONS
CX31
BIOLOGICAL MICROSCOPE
AX6655

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Questions and Answers

  • C
    Charles SmithSep 2, 2025
    What to do if the coarse adjustment knob on my Olympus CX31 Microscope is hard to turn?
    • A
      Amanda NortonSep 2, 2025
      If the coarse adjustment knob on your Olympus Microscope is hard to turn, the tension adjustment ring may be overtightened. Loosen it.
  • J
    Jordan DennisAug 31, 2025
    What to do if one side of the image is blurred on my Olympus Microscope?
    • S
      Sarah BushAug 31, 2025
      If one side of the image is blurred or the image seems to waver on your Olympus Microscope, it could be due to: * The objective not being correctly engaged in the light path. Make sure that revolving nosepiece clicks into place correctly. * The specimen not being correctly mounted on the stage. Place the specimen correctly on top of the stage and secure it with the specimen holder.
  • L
    Logan CastroAug 29, 2025
    How to resolve image diffraction on an Olympus CX31?
    • G
      gregghartAug 29, 2025
      If the image shows diffraction when using your Olympus Microscope, it could be due to the condenser being lowered too far or the aperture iris diaphragm being stopped down too far. Try adjusting the condenser height position and opening the aperture iris diaphragm.
  • K
    Kathy MartinezAug 27, 2025
    How to fix diffraction in Olympus CX31 image?
    • M
      Misty FergusonAug 27, 2025
      Diffraction in your Olympus Microscope image can be resolved by: * Adjusting the condenser height position if the condenser is lowered too far. * Opening the aperture iris diaphragm if it is stopped down too far.
  • J
    Jose MorganAug 26, 2025
    Why does my Olympus Microscope image blur as I move the specimen?
    • E
      Elizabeth DavisAug 27, 2025
      If the image blurs as you move the specimen on your Olympus Microscope, it could be due to the specimen not being correctly positioned on the stage. Remount the specimen correctly by applying it to the stage surface and inserting it below the specimen holder.
  • C
    chernandezAug 25, 2025
    What to do if the field of view is obscured on Olympus CX31 Microscope?
    • S
      Shawn JonesAug 25, 2025
      If the field of view on your Olympus Microscope is obscured or not evenly illuminated, consider the following: * Ensure the revolving nosepiece is correctly engaged and clicks properly into place. * Center the field iris diaphragm if it is not properly centered. * Open the field iris diaphragm to an optimum stop position if it is stopped down too far. * Clean any dirt or dust from the objective, eyepieces, condenser, or light exit glass.
  • T
    tiffanymayAug 22, 2025
    Why is there dirt visible in the field of view of my Olympus CX31 Microscope?
    • T
      thomasaliciaAug 22, 2025
      If you see dirt or dust in the field of view of your Olympus Microscope, the cause may be dirt or dust on the light exit glass. Clean it thoroughly.

Summary

Important Safety Information

Safety Precautions

Essential safety rules and guidelines to prevent injury and equipment damage during operation.

Safety Symbols and Labels

Safety Symbols

Explanation of symbols used on the microscope for safe operation.

Warning Labels

Location and importance of warning labels for special precautions.

Getting Started: Initial Setup

Maintenance and Storage

Cleaning and Storage Procedures

Instructions for proper cleaning, maintenance, and storage of the microscope.

General Cautionary Notes

Important warnings regarding potential damage or safety risks from improper use.

Microscope Nomenclature

Brightfield Observation Procedure Summary

Assembly and Setup

Bulb Replacement

Step-by-step guide for replacing the microscope's illumination bulb.

Power Cord Connection

Instructions for safely connecting the microscope's power cord.

Optional Cord Hanger Installation

Using the Controls

Base Controls: Power and Illumination

Operation of the main switch, light intensity, and field iris diaphragm.

Focusing Block Controls

Adjusting coarse/fine focus tension and using the simplified pre-focusing dial.

Stage Controls: Specimen Handling

Placing and moving specimens on the microscope stage.

Observation Tube Adjustments

Adjusting interpupillary distance and diopter for clear viewing.

Accessory Operations

Using eye shades, light paths, and eyepiece micrometer disks.

Condenser Controls

Centering the field iris diaphragm and adjusting the aperture iris diaphragm.

Immersion Objectives Usage

Guidelines for using immersion oil with high-power objectives.

Troubleshooting Guide

Optical System Troubleshooting

Resolving issues with field of view, illumination, and image clarity.

Focus and Stage Troubleshooting

Solutions for problems with focus, stage drift, and specimen placement.

Electrical System Troubleshooting

Troubleshooting illumination bulb and power cord issues.

Technical Specifications

Optical Characteristics

Power Supply Cord Selection

Olympus CX31 Specifications

General IconGeneral
TypeBiological Microscope
Observation MethodBrightfield
Objective Lenses4x, 10x, 40x, 100x (Oil)
FocusCoaxial coarse and fine focus knobs
WeightApprox. 7 kg
Eyepiece10x
NosepieceQuadruple
StageMechanical stage
IlluminationBuilt-in illumination
CondenserAbbe condenser N.A. 1.25 with aperture diaphragm
Illumination TypeLED
Power SupplyAC 100-240V, 50/60Hz
Optical SystemUIS2 (Universal Infinity System)

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