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MEC2 INVERTED METALLURGICAL MICROSCOPE 

 

 

 

 
 

 

UNITRON

®     

                          

73 Mall Drive, Commack, NY  11725  •  631-543-2000  •  www.unitronusa.com 

16

 

SPECIFICATIONS 

 

Optical System 

Infinity Optical System 

Viewing Tube 

Siedentopf style; Trinocular Tube; Inclined 30º; Diopter Range: ±5; 
Interpupillary distance range: 48mm -75mm 
Standard configuration light distribution: Binocular 100% or 
Binocular/photo 20%/80% 

Eyepiece 

Extra Wide Field 10x with 20mm field of view with diopter adjustment and 
eyeguards 

Nosepiece 

Quintuple nosepiece with positive click stops 

Objective 

Plan achromatic objectives:  5x, 10x, 20x, 40x 

Focusing System 

Coaxial coarse and fine focusing adjustment; Vertical objective movement; 
Coarse focus:  377mm per roation; Fine focus:  0.2mm per rotation 

Stage 

Area:  160mm x 250mm 

Mechanical Ruler 

X/Y Coaxial Control; Right hand low position 
Movement range:  120mm x 78mm 

Illumination 

6 volt 30 watt halogen; variable intensity;  
External lamp housing for Kohler illumination 

Filters 

Blue, yellow, green and ground glass 

 

 

 

 

OBJECTIVES 

 

Magnification 

Aperture Number 

(N.A.) 

Working Distance 

(mm) 

Conjugate Distance 

(mm) 

5x 

0.12 

15.4 

8

 

10x 

.25 

11 

8

 

20x 

0.4 

8

 

40x 

0.6 

3.7 

8

 

 

 

 

Summary of Contents for MEC2

Page 1: ...73 Mall Drive Commack NY 11725 631 543 2000 P 631 589 6975 F www unitronusa com info unitronusa com MEC2 INVERTED METALLURGICAL MICROSCOPE MANUAL ...

Page 2: ...SSEMBLY 5 DETAILED ASSEMBLY PROCEDURE 6 ADJUSMENT AND OPERATION TURNING ON THE LAMP 10 ADJUSTING THE BRIGHTNESS 10 ADJUSTING THE TENSION ADJUSTMENT COLLAR 10 ADJUSTING THE ILLUMINATION 11 PLACING AND MOVING THE SPECIMEN 12 ADJUSTING THE DIOPTER 13 ADJUSTING THE INTERPUPILLARY DISTANCE 13 SWITCHING THE LIGHT PATH 13 MICROSCOPE VIDEO AND PHOTOGRAPHY 14 SPECIFICATIONS 16 TROUBLESHOOTING 17 MAINTENANC...

Page 3: ...cope NOTE Always plug the stereomicroscope power cord into a suitable grounded electrical outlet A grounded 3 wire cord is provided CARE AND MAINTENANCE 1 Do not attempt to disassemble any component including eyepieces objectives or focusing assembly 2 Keep the instrument clean remove dirt and debris regularly Accumulated dirt on metal surfaces should be cleaned with a damp cloth More persistent d...

Page 4: ...e each microscope is of the highest quality prior to shipment UNPACKING AND COMPONENTS Your microscope arrived packed in a molded shipping carton Do not discard the carton the shipping carton should be retained for reshipment of your microscope if needed Avoid placing the microscope in dusty surroundings or in high temperature or humid areas as mold and mildew can form Carefully remove the microsc...

Page 5: ... METALLURGICAL MICROSCOPE UNITRON 73 Mall Drive Commack NY 11725 631 543 2000 www unitronusa com 5 COMPONENT DIAGRAMS continued Analyzer Condenser Adjsutment Lever Polarizer Aperture Diaphragm Field Diaphragm Filter ...

Page 6: ...t or left side Tighten the bolts with a screwdriver until the mechanical stage is securely attached Installing The X Y Controls Install the ruler using the same method as the mechanical stage Installing and Replacing the Halogen Bulb Figures 1 3 Use only the specified halogen lamp 6V 30W 1 Pull out the lamp house Figure 1 2 Holding the bulb with a piece of gauze or other protective material insert...

Page 7: ...h the pins and the bolts with the jacks Then insert the lamphouse cover completely into place Figures 3 4 Installing the Stage Plate Figure 5 The stage plate is installed by placing it in the center of fixed stage Installing the Eyepieces Figure 6 1 Remove the protective caps on the eyepiece tubes 2 Insert the eyepieces into eyepiece tubes until they are completely inserted Installing the Video Ad...

Page 8: ...Figure 10 1 Insert a standard filter s into slot 1 2 For polarized observation insert the polarizer filter into slot 2 Standard filters are blue yellow and green filters Mounting the Analyzer Figure 11 Insert the analyzer 3 into the slot under the trinocular viewing head The analyzer may be used alone or with the polarizer Fig 9 Fig 10 Fig 11 ...

Page 9: ...ptacle 3 Insert the BNC cord plug 3 into the BNC connector 4 Ensure the power cord is connected to a properly grounded electrical outlet Replacing the Fuse Figures 12 13 Ensure the main switch is set to O Off and the power cord is disconnected before replacing the fuse With a flat head screwdriver remove the fuse holder 5 replace with a new fuse then re install the fuse holder Fuse rating 250V 500...

Page 10: ...able intensity will increase the life of the lamp Adjusting the Tension Adjustment Collar Figure 17 The tension of the coarse focusing knob 3 has already been properly adjusted Use the supplied tension adjustment wrench to adjust the tension adjustment collar 4 Rotating the collar clockwise increases the tension on the coarse focusing knob A counter clockwise rotation will decrease the tension on ...

Page 11: ...e sharpest image Aperture Iris Diaphragm The aperture iris diaphragm is not used to control the brightness of the image It controls the aperture angle of the incident rays The diaphragm is not adjusted properly until the incident rays just fill the objective lens At this position the contrast and sharpness of the image will be the best The aperture diaphragm should be re adjusted when changing obj...

Page 12: ...e the slide in the center of the stage and secure with the stage clip 2 The specimen may be moved to different positions by turning the X axis knob and or the Y axis knob Travel X axis left right direction 120mm Y axis front back direction 78mm Use caution when changing the objective to prevent it from touching the stage stage plate or specimen slide Fig 19 Fig 20 ...

Page 13: ... to focus on the specimen Diopter adjustment range 5 Adjusting the Interpupillary Distance Figure 22 While observing with both eyes hold the left and right prism holders 2 3 rotate them around the axis to adjust the interpupillary distance until the left and right fields of view coincide to form a single image Interpupillary range 48 75mm Switching the Light Path Figure 23 Pull out or push in the ...

Page 14: ...otated from 0 to 90 When the field of view becomes the darkest the polarization position has been obtained and polarized observation can be performed MICROSCOPE VIDEO AND PHOTOGRAPHY Video Microscopy Selecting the Light Path Figure 24 1 Push in the light path selector 1 completely 2 Using binocular observation focus your specimen 3 Pull out the light path selector completely Installing the Video A...

Page 15: ...tighten the thumb screw 3 Connect the photo adapter with the camera Then insert the adapter into the photo accessory adapter To avoid disturbing the image focus place the camera viewfinder toward the front of the microscope when installing the camera The magnification of photomicrograph magnification of objective x magnification of the photo adapter The shutter on some cameras may cause a jarring ...

Page 16: ... Nosepiece Quintuple nosepiece with positive click stops Objective Plan achromatic objectives 5x 10x 20x 40x Focusing System Coaxial coarse and fine focusing adjustment Vertical objective movement Coarse focus 377mm per roation Fine focus 0 2mm per rotation Stage Area 160mm x 250mm Mechanical Ruler X Y Coaxial Control Right hand low position Movement range 120mm x 78mm Illumination 6 volt 30 watt ...

Page 17: ...ndenser at the upper limit IMAGE PROBLEMS Image moves while focusing Specimen rises from stage surface Revolving nosepiece is not in the click stop position Secure the specimen with the holder Turn the nosepiece to the click stop position Image tinged yellow Blue filter not used Lamp intensity is too low Use daylight blue filter Adjust the light intensity by turning the intensity control dial Imag...

Page 18: ... from defects in material and workmanship for a period of five 5 years for mechanical and optical components and one 1 year for electrical components from the date of invoice to the original end user purchaser This warranty does not cover damage caused in transit misuse neglect abuse or damage resulting from improper servicing or modification by other then UNITRON approved service personnel This w...

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