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Stalwart STM-2073 Series Instruction Manual

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Biological Microscope
STM-2073, STM-2074 Series
Instruction Manual
STM-2073B
STM-2074B
This manual is for the biological microscope Model STM -2073, STM -2074. To ensure the safety,
obtain optimum performance and to familiarize yourself fully with the use of this microscope , it
is recommended strongly that you study this manual thoroughly before operating the microscope
.

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Summary of Contents for Stalwart STM-2073 Series

  • Page 1 Biological Microscope STM-2073, STM-2074 Series Instruction Manual STM-2073B STM-2074B This manual is for the biological microscope Model STM -2073, STM -2074. To ensure the safety, obtain optimum performance and to familiarize yourself fully with the use of this microscope , it is recommended strongly that you study this manual thoroughly before operating the microscope...
  • Page 2 CONTENTS STM-2073,STM-2074 User Notices .................... 2 1. Components Names ................4 2. Assembly ....................5 2.1Assembly Diagram ........................ 5 2.2Assembly Procedure......................6 3. Adjustment And Operation ..............9 3.1Adjustment Set Diagram ...................... 9 3.2Operation ........................... 13 4. Video Attachment ................18 4.1Installing Trinocular Viewing Head And Video Attachment ..........
  • Page 3 Use Notices STM-2073,STM-2074 Ⅰ. Configuration Instruction 1. STM -2073 is the basic model and uses NIS45 system; 2. STM -2074 is coding model, using NIS60 system, with brightness memory, wire resistance stage and other configurations. Ⅱ. Principle and Application Principle: Using the appropriate adjustment combination of two lens sets, the specimen is magnified and observed.
  • Page 4 Ⅴ. Maintenance and Care All the lenses have been adjusted properly, do not dismount them by yourself please. The nosepiece and coarse and fine focusing parts are so delicate that it is forbidden to disassemble them carelessly by yourself. Keep the instrument clean, wipe dust every day, and do not pollute the optical element when wiping away the dust on the instrument.
  • Page 5 1.Components Name STM-2073,STM-2074 Model STM-2073 Eyepiece Viewing head Nosepiece Objective Condenser Stage Main body Model STM-2074 Viewing head Eyepiece Objective Encoded nosepiece Condenser Stage Main body...
  • Page 6 2.Assembly STM-2073,STM-2074 2.1 Assembly Diagram The diagram below shows how to assemble the various components. The numbers indicate the order of assembly.  When assembling the components, make sure that all parts are free of dust and dirt, and avoid scratching any parts or touching glass surfaces.
  • Page 7 STM-2073,STM-2074 2.2 Assembly Procedure 2.2.1 Installing the Objective (Fig.1-2) 1. Adjust the coarse focus knob until the support device of the mechanical stage reach its low limit position. Screw the lowest magnification objective into the nosepiece from the left or the right side, then revolve the nosepiece clockwise/counterclockwise and mount other objectives by the sequence of low to high magnification.
  • Page 8 STM-2073,STM-2074 2.2.2 Connecting the power cord (Fig.4-5) ★ The cable and cords are vulnerable when bent or twisted, never subject the power cord to excessive force. Set the main switch① to “O” (off) state before connecting ① the power cord. Insert the plug②...
  • Page 9 STM-2073,STM-2074 2.2.4 Mounting the filters (Fig.8) Place the required filter into the appropriate hole of the collector. Fig.8 2.2.5 LED lamp replacement (Fig.9-11) ◎ Generally, LED lamp is very durable, so it is not easy to damage. If it is unfortunately damaged, please purchase the LED (Fig.11) from your vendors.
  • Page 10 3.Adjustment And Operation STM-2073,STM-2074 3.1 Adjustment Set Diagram Model STM-2073 Interpupillary Distance Indicator Phase Contrast Slider Condenser Focusing Knob Aperture Diaphragm Tension Adjustment Collector Field Stop Collar Left Fine Focus Knob Brightness Adjustment Left Coarse Main Knob Focus Knob Switch...
  • Page 11 STM-2073,STM-2074 Portrait Adjustment Knob Lateral Adjustment Knob Right Fine Focus Knob Locking Knob Power Socket...
  • Page 12 STM-2073,STM-2074 Model STM-2074 Interpupillary Distance Indicator Phase Contrast Slider Condenser Focusing Knob Aperture Diaphragm Collector Tension Adjustment Collar Filed Stop Left Fine Focus Knob LCD(Liquid Crystal Display) Main Left Coarse Brightness Adjustment Switch Focus Knob Knob LCD Screen Number adjustable symbol converted Solid blue dot...
  • Page 13 STM-2073,STM-2074 USB Interface Portrait Adjustment Knob Lateral Adjustment Knob Right Fine Focus Knob Locking Knob Power Socket...
  • Page 14 STM-2073,STM-2074 3.2 Operation 3.2.1 Brightness Adjustment (Fig.12-15) Connect the power cord and set the main switch① on the right side of microscope to “－”state (ON). Turning the brightness adjustment knob② in the direction shown in the figure, the voltage raise, and the brightness ①...
  • Page 15 STM-2073,STM-2074 3. Double-click Knob: lock brightness or unlock (Fig.15). The brightness adjustment knob fails when locking, and ”LOCK” appears on the LCD screen; Double-click the knob again to release the lock and the “LOCK” on the screen disappears; 1. Press+upward rotation: switch to up lighting; 5.
  • Page 16 STM-2073,STM-2074 3.2.2 Placing the Specimen (Fig.16-17) Place the specimen in the center of the mechanical stage and use the stage clips to clamp it. Turn the portrait and lateral adjustment knob① of the mechanical ruler, move the specimen to the required position.
  • Page 17 STM-2073,STM-2074 3.2.5 Adjusting the tension adjustment collar (Fig.20) ★ The tension of the coarse focus knob had already adjusted before leaving factory. If it is too loose(the mechanical stage slides down because of its own weight), please turn the tension adjustment collar① until the tightness is appropriate.
  • Page 18 STM-2073,STM-2074 3.2.7 Adjustment of Field Stop (Fig.22) Turn the field stop ring③ in the direction shown in ③ the figure to close the filed stop. Turn the field stop ring in the opposite direction to increase the filed stop. According to the magnification of the objective, adjust the filed stop until filed stop is circumscribed with filed which will reduce the mixed light and improve the...
  • Page 19 4.Video Attachment STM-2073,STM-2074 4.1 Installing Trinocular Viewing Head And Video Attachment (Fig.25) 1. Mount the trinocular viewing head according to the assembly path① in Fig.25 into the round dovetail of ③ Ⅲ the microscope and tighten the screwⅠ to fix the viewing head;...
  • Page 20 5.Digital Viewing Head STM-2073,STM-2074 5.1 Digital Viewing Head (Fig.27-28) There are two types of digital viewing heads to choose from: wired digital viewing head (Fig.27) and wireless digital viewing head(Fig.28). 1. The wired digital viewing head only has one interface. It is connected to the computer through the data line.
  • Page 21 6.Fluorescent Observation STM-2073,STM-2074 6.1 Fluorescent Set (Fig.30-31) The fluorescent set uses 3W LED as illuminant and has two fluorescence modules: B band fluorescence module and G band fluorescence module or U band fluorescence module. When the lever① is adjusted to the leftmost end, it is B band fluorescence module.
  • Page 22 7.Phase Contrast Observation STM-2073,STM-2074 7.1 Components Name 7.1.1 Phase Contrast Objective The optional objective magnification of the phase contrast is: 10×, 20×, 40×, 100×. If you want to know how to mount the phase contrast 2.2.2 objective, please see . You ought to mount it on the nosepiece.
  • Page 23 STM-2073,STM-2074 7.2.2 Centering Diaphragm (Fig.35) Generally do not need to center. If necessary, please adjust the diaphragm according to the following steps: 1. Place the specimen on the stage and focus it. Take out a eyepiece and replace it with the centering telescope(CT).
  • Page 24 8.Dark Field Observation STM-2073,STM-2074 8.1 Bright and Dark Filed Components (Fig.36) The halo① used in the dark filed observation is dark filed illumination board, while the opening② is used for bright filed. 8.2 Installation and Use (Fig.37) ① ② 1. Before installing the bright and dark filed component, pull Fig.36 out the phase contrast slider in the reverse order of 7.2.1...
  • Page 25 9.Simple Polarization Set STM-2073,STM-2074 9.1 Components Name 9.1.1 Polarization Set (Fig.38) Polarization observation has two necessary components: polarizer① and analyzer②. The analyzer can be rotated ② ① at 0-90°. In orthogonal polarization observation, it is necessary to turn the analyzer to make the vibration directions of the polarizer and the analyzer perpendicular to each other and the filed of view is darkest.
  • Page 26 10．Technical Specifications STM-2073,STM-2074 (1). Main Specifications Components Name Specification STM-2073B STM-2074B Optical System Infinite optical system Standard Standard Seidentopf Binocular Head, 30° Inclined, Interpupillary 47-78mm Standard Standard Seidentopf Trinocular Head (5:5) Optional Optional Seidentopf Trinocular Head (0:100/100:0) Optional Optional Viewing Head Digital Viewing Head Optional Optional...
  • Page 27 STM-2073,STM-2074 (2). Objective Parameters Numerical Working Distance Conjugate Type Magnification Aperture (N.A) (mm) Distance ∞ 4× 0.10 20.6 ∞ 10× 0.25 17.9 Plan Achromatic ∞ 20× 0.40 Objective (NIS45) ∞ 40× 0.65 ∞ 100× (Water) 0.16 ∞ 2× 0.06 4× 0.10 ∞...
  • Page 28 11．Trouble Shooting STM-2073,STM-2074 (1). Optical Part TROUBLE CAUSE SOLUTION The nosepiece is not in the located position Turn to the location (the objective enter the optical The edge of the field (objective and light path not coaxial) path correctly) of view is dark or the The phase contrast slider is not located in the Turn the slider into the correct position where you brightness...
  • Page 29 STM-2073,STM-2074 Reinstall the condenser and center the condenser with the centering screw Condenser is not properly centered or inclined One side of image is blurred The nosepiece is not properly engaged Engage the nosepiece properly The specimen is not clamped Clamp it with stage clips The specimen slips on the stage Fix it...
  • Page 30 STM-2073,STM-2074 (3). Electrical Part TROUBLE CAUSE SOLUTION check the connection of the power No power supply cord The lamp cannot light when the The connector of LED lamp is not properly inserted Insert it correctly switch is turned on into the circuit board The lamp is broken Replace it Use the specified lamp to replace,...

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Stm-2074 seriesStm-2073bStm-2074b