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Table of Contents
Related Manuals for AmScope GM400 Series
Summary of Contents for AmScope GM400 Series
- Page 1 GM400 Series User’s Manual...
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Page 2: Table Of Contents
GM400 Series Table of Contents 1. Before Use ..................3 Introduction ...................... 3 Safety Precautions .................... 4 Parts ..................5 2.1 GM400 ....................... 5 Definition of Parts ..................Assembly ................Setting Up ................Adjust observation angle ..................Adjust focusing tightness ................... -
Page 3: Before Use
1. 1 Introduction Congratulations on the purchase of your new AmScope microscope! This manual is designed for the GM400 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
GM400 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: Parts
GM400 Series Before Use 2.1 GM400T Eyepiece Microscope Head Top Light Power Switch Zoom Knob Focusing Knob Gem Clamp Microscope Stand Light Dimmer Power Switch... -
Page 6: Definition Of Parts
GM400 Series Before Use 2.2 Definition of Parts 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 Dimmer Controls the amount of light that escapes from the base lens... -
Page 7: Assembly
GM400 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... - Page 8 GM400 Series Assembly 2) Remove the microscope body from the box and remove the plastic protective covering. The body of the microscope is composed of the base, the stage, the arm, and the nosepiece. 3) Loosen the metal knob located directly above the nosepiece (the head-lock screw) completely. Place the head (flat, circular side down) into the circular opening on top of the arm.
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Page 9: Setting Up
GM400 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 screw for rotatable axial. Adjust focusing tightness Hold one knob while turning the other knob to adjust tightness. -
Page 10: Interpupillary Distance
GM400 Series Operation Interpupillary distance. With both eyes open, look into the eyepieces. Adjust the interpupillary distance by holding the eyepiece tubes and rotating the eyepiece tubes either towards or away from each other until only one circle of light is seen by both eyes. -
Page 11: Mount And Remove Micrometer
GM400 Series Operation 4.6 Mount and remove micrometer 1) Remove the mounting ring from eyepiece. 2) Clean the micrometer and mount it into mounting ring. Make sure the inscription side is up. 3) Mount the mounting ring into eyepiece. 4) To remove the micrometer, remove the mounting ring first. Then take out the micrometer and wrap it with clean and soft paper for storage. -
Page 12: Iris Diaphragm
GM400 Series Operation Iris Diaphragm Turn iris diaphragm slider to change the aperture of bottom light. The apture for iris diaphragm is 3mm – 44mm. 4.10 Switch Brightfield & Darkfield Turn the knob thoroughly for brightfield and darkfield to select. -
Page 13: Replace Bulb For Top Light
GM400 Series Operation 4.14 Replace bulb for top light Turn off the power and wait until bulb cools down. Loosen the screw on cover and turn over. Pull out the bulb for replacement. 4.15 Polarizer There are two pieces of polarizer. One set is under the microscope head (same as auxiliary lens) and the other set is... -
Page 14: 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 15: Specifications
GM400 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 16: Technical Parameters
GM400 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 17: 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 GM400 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 18: Troubleshooting
GM400 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 19 GM400 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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