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GM300 Series
User's Manual
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Summary of Contents for AmScope GM300 Series

  • Page 1 GM300 Series User’s Manual...
  • Page 2: Table Of Contents

    GM300 Series Table of Contents 1. Before Use ..................3 Introduction ...................... 3 Safety Precautions .................... 4 Parts ..................5 2.1 GM300 ....................... 5 Definition of Parts ..................Assembly ................Setting Up ................Adjust observation angle ..................Adjust focusing tightness ...................
  • Page 3: Introduction

    1. 1 Introduction Congratulations on the purchase of your new AmScope microscope! This manual is designed for the GM300 series microscopes. This high quality microscope is designed for professional jewelers and gemologists. Please take a few minutes to familiarize yourself with the features and functions of your new microscope.
  • Page 4: Safety Precautions

    GM300 Series Before Use 1.2 Safety Precautions 1) As the microscope is a precision instrument, always handle it with care, avoiding impact or abrupt movement during transportation. Do not shake the package. 2) Do not place the microscope in direct sunlight or in high heat. Keep it indoors in a dry and clean place with temperatures between 32-100 degrees F (0-40 degrees C), and in maximum relative humidity of 85%.
  • Page 5: Gm300

    GM300 Series Before Use 2.1 GM300T Microscope Head Eyepiece Zoom Knob Top Light Gem Clamp Focusing Knob Microscope Stand Light Dimmer Limit Stop Knob...
  • Page 6: Definition Of Parts

    GM300 Series Before Use 2.2 Definition of Parts Base Lens Directs the light source towards the slide Focusing Knob Used to initially bring the slide into the sight and focus Condenser & Iris Diaphragm Controls the amount of light that hits the slide...
  • Page 7: Assembly

    GM300 Series Assembly 3. Assembly 1) First, take the styrofoam container out of the cardboard carton and lay it on its side, paying attention to which side is labeled up. Remove the tape and open the container carefully so as to avoid dropping and damaging the optical items.
  • Page 8: Setting Up

    GM300 Series Operation 4. Setting Up 4.1 Adjust observation angle. Hold the front of the base and arm to turn to suitable position. Then tighten the lock knob. Diopter & focusing. 1) Turn the objectives to the highest magnification. 2) Turn both eyepiece tube to “0” position.
  • Page 9: Attaching A Camera

    GM300 Series Operation 4.4 Attaching a Camera If your camera has a C-mount, simply screw the camera onto the trinocular port. If your camera has a 23mm mounting size, remove the C-mount from the top of the trinocular port by loosening the screw. Then, drop the camera directly into the trinocular port.
  • Page 10: Maintenance/Precautions

    Doing so will void your warranty unless by advisement of one of our technicians to do so. - After use, cover the microscope with the provided dust cover. - Keep your AmScope microscope in a dry, clean location in order to prevent rust or other damages.
  • Page 11: Specifications

    GM300 Series Specifications 6.1 Optics Standard Objective Objective for selection WD 100mm Auxiliary Lens 1.5X Auxiliary Lens 2X Auxiliary Lens 0.75X Eyepiece WD 47mm WD 26mm WD 120mm Mag. Field Mag. Field Mag. Field Mag. Field 6.7X 32.8 10.1X 21.9 13.4X...
  • Page 12: Electrical System

    GM300 Series Technical Parameters 7.1 Electrical System There are two options for electrical systems for this series of microscope. The light source is dependent on which model you have, but can either be a 6V/20W halogen, a 6V/30W halogen, or an LED system.
  • Page 13: Technical Terms & Concepts

    Total magnification of a microscope is calculated by the magnification of the objective multiplied by the magnification of the eyepieces. -Ex: (10x Eyepieces) x (4x Objective) = 40x Total Magnification For GM300 series: Total mag. = (Zoom mag.) X (Eyepiece Mag.) X (Auxiliary objective mag.) Field of View Linear field of view of the eyepiece divided by the magnification of the objective Numerical Aperture (N.A)
  • Page 14: Troubleshooting

    GM300 Series Troubleshooting Common Issues Symptom Cause Remedy OPTICAL ISSUES The nosepiece if misaligned Turn the nosepiece until it clicks into place One side of the field of view is darker Stains or dust has accumulated on the condenser, Clean all lenses with lens cleaner or a lint free non-...
  • Page 15 GM300 Series Troubleshooting Common Issues (Continued) Symptom Cause Remedy OPTICAL ISSUES The color of the image is The brightness adjustment knob is not in the right position Adjust the brightness knob to a higher or lower setting for color clarity...

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