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Biological Microscope
STM-2040B/T
Instruction Manual
This manual is for biological microscope Model STM -2040 B/T. To ensure the safety , obtain
optimum performance and to familiarize yourself fully with the use of this microscope , it
is strongly recommended that you study this manual thoroughly before operating the microscope.
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Summary of Contents for Stalwart STM-2040B/T
- Page 1 Biological Microscope STM-2040B/T Instruction Manual This manual is for biological microscope Model STM -2040 B/T. To ensure the safety , obtain optimum performance and to familiarize yourself fully with the use of this microscope , it is strongly recommended that you study this manual thoroughly before operating the microscope.
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Page 2: Table Of Contents
STM-2040B/T CONTENTS CONTENTS…………………………………………………………… 1 USER NOTICES…………………………………………………… 1 Components Name ……………………………………………… 2 Assembly ………………………………………………………… ……………………………………………… 2.1 Assembly Diagram …………………………………………… 2.2 Assembly Procedures 3 Adjustment ……………………………………………………… ………………………………………… 9 3.1 Adjustment Set Diaphragm …………………………………………… 3.2 Adjustment Procedures 4 Technical Specifications ………………………………………… 5 Outfit………………………………………………………………... -
Page 3: User Notices
STM-2040B/T USER NOTICE 1. Safety Note 1. Open the box carefully to avoid the accessories, like lens, dropping to ground or being damaged. 2. Do keep the instrument out of direct sunlight, high temperature or humidity, dusty and easy shaking environment. Make sure the stage is flat, horizontal and firm enough. -
Page 4: Components Name
STM-2040B/T 1 . Components Name Binocular viewing head Eyepiece Nosepiece Objective Main body... -
Page 5: Assembly
STM-2040B/T 2 Assembly 2-1 Assembly Diagram The following figure shows the installation sequence of the components. The number in the figure shows the assembly steps. Before installing, be sure every components is clean, do not score any parts or glass surface. -
Page 6: Assembly Procedures
STM-2040B/T 2.2 Assembly Procedure 2.2.1 Installing binocular viewing head （Fig.1-2） Insert the binocular viewing head into the microscope head and turn it to a proper position, then screw down the bolt to fix it. Fig.1 Fig.2 2.2.2 Installing the eyepiece（Fig3-4）... - Page 7 STM-2040B/T 2.2.3 Installing the objective（Fig.5-6） 1. Adjusting the coarse focus knob until the support device of the mechanical stage reaches its low limit position. 2. Screw the lowest magnification objective into the nosepiece from the left or the right Fig.5...
- Page 8 STM-2040B/T 2.2.5 Connecting the Power Cord （Fig.8-10） ★ The cable and cords are vulnerable when bent or twisted, never subject the power cord to excessive force. Set the main switch to “O” (off) state ① Fig.8 before connecting the power cord.
- Page 9 STM-2040B/T 2.2.7 Installing and Replacing the bulb （Fig.11-13） Please use the specified halogen Lamp 6V20W. Pull out the condenser holder as shown in Fig.11. Hold the bulb① after you wrap it with Fig.11 gauze or other protection materials, and then insert its pin② deeply into the jack in the lamp holder.
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Page 10: Adjustment
STM-2040B/T 3. Adjustment and operation 3.1 Adjustment set diagram（Fig.14-15） Portrait Adjustment Knob Lateral Adjustment Knob Right Fine Focus Knob Brightness Adjustment Knob Right Coarse Focus Knob Main Switch Tension Adjustment Collar Fig.14... - Page 11 STM-2040B/T Interpupillar Distance Indicator Condenser Focusing Knob Clocking Set Indicator Left Fine Focus Knob Left Coarse Focus Knob Aperture Iris Diaphragm Collar Fig.15...
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Page 12: Adjustment Procedures
STM-2040B/T 3.2 Adjustment and Operation 3.2.1 Brightness Adjustment（Fig.16） Connect the power cord and set the main switch to “－”state (ON). Turning brightness adjustment knob clockwise, the voltage raise, and the brightness strengthen; whereas turning at the contra direction, the voltage decline, and the brightness weaken. - Page 13 STM-2040B/T Turn the coarse focus knob ①conversely to lower the specimen and search images in the 10×ocular simultaneously, and then use the fine knob② to focus. After that, you can replace with other magnification objectives safely, and focus without the risk of damaging the specimen.
- Page 14 STM-2040B/T 3.3.6 Adjusting the Interpupillary Distance （Fig.21） The interpupillary distance range: 55mm～75mm。 While looking through the eyepieces, move both eyepieces until the left and right fields of view Fig.21 coincide completely. 3.3.7 Adjusting the Diopter（Fig.22） Turn the eyepiece①to adjust the diopter while looking through it.
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Page 15: Technical Specifications
STM-2040B/T 4．Technical Specifications 1). Main Specifications Optical System Infinite optical system Viewing Head Siedentopf Binocular Head, 30°Inclined, Interpupillary Distance 48-75 mm Eyepiece Wide Field Eyepiece WF 10X/18 Nosepiece Quadruple Nosepiece Objective Infinitive Semi-plan Objectives 4×, 10×, 40×, 100× Focusing Coaxial Coarse and Fine Adjustment, Moving Range20mm,Fine Division 0.002mm Condenser Abbe Condenser, NA=1.25... -
Page 16: Outfit
5．Outfit STM-2040B/T Main Standard Optional Main Body Double Layers Mechanical Stage Optional Condenser Holder Optional Viewing Head Siedentopf Binocular Head Optional Condenser Abbe Condenser, NA=1.25 Optional Nosepiece Quadruple Optional 6V20W Halogen Lamp Optional Illumination Spare Bulb Optional Eyepiece 10×Wide Field Plan Eyepiece Optional Infinite Semi-Plan Objective 4×... -
Page 17: Trouble Shooting
STM-2040B/T 6．Troubleshooting Guide 1. Optical System TROUBLE CAUSE SOLUTION The nosepiece is not in the located Locate the nosepiece position (objective and light path not properly where it clicks The edge of the field coaxial) of view is dark or the... - Page 18 STM-2040B/T 2. Mechanical System TROUBLE CAUSE SOLUTION Field of view of one eye does not Interpupillary distance is incorrect Adjust interpupillary distance match that of the other The diopter is not proper Adjust the diopter properly Observation is The brightness of the illumination is not...
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