background image

 

12 

view 

Dirt on eyepiece 

Clean eyepiece 

3

The  visibility  of  the 

image is poor.   

Dust on objective front 

lens. 

Clean lens surface 

 

6. Specimen image blurs 

when zoom magnification is 

changed. 

Diopter ring is not 

correctly adjusted. 

Adjust it correctly. 

Not in complete focus on 

specimen. 

Focus specimen 

correctly at a high 

magnification. 

5

Coarse focus adjustment 

knobs rotate with too much 

resistance. 

Tension adjustment ring 

is too tight. 

Loosen it properly. 

6

Zoom microscope body 

drops or specimen goes out 

of focus during observation.   

Tension adjustment ring 

is too loose. 

Tighten it properly. 

6. Outfit 

Components 

Specification 

Qauntity 

Standard Outfit

 

Main body 

Main body 

 

Observation system 

Binocular head and zoom body 

 

Illuminator 

Transmitted illuminator (LED) 

 

Reflected illuminator (LED) 

 

Annular illuminator 

 

 

Eyepiece 

10

×

Eyepiece 

 

20

×

Eyepiece   

 

 

Objectives 

0.5

×

objective 

 

 

1

×

objective 

 

2

×

objective   

 

 

Aperture iris 

diaphragm 

 

 

 

Stage plate 

Black-and- white stage 

 

Glass plate 

 

Power cord 

Power cord 

 

○:

Optional 

Summary of Contents for STM850

Page 1: ...nual is written for stereomicroscope STM850 STM864 STM880 To ensure the safety obtain optimum performance and to familiarize yourself fully with the use of this microscope it is recommended strongly t...

Page 2: ...2 1 Components 4 2 Assembly 5 2 1 Assembly diagram 5 2 2 Detailed Assembly Procedure 6 3 Adjustment and Operation 9 3 1 Adjusting binocular head 9 3 2 Focus adjustment 10 4 Specification 11 5 Troubles...

Page 3: ...the factory supplied power cord please 2 Maintenance and Storage 1 All the lenses have been well checked and adjusted It is forbidden to disassemble them yourself 2 The binocular viewing head and foc...

Page 4: ...mble any parts of the microscope which will affect the function or decline the performance of the microscope 8 Place the instrument in a cool dry position When not using the microscope keep it covered...

Page 5: ...64 Stereo Microscope STM 880 Adjustable WF10 eyepieces Focusing Assembly Binocular viewing head Zoom body Clamping Knob Objectives Glass stage Standard base Brightness adjusting knob Power cord Main S...

Page 6: ...bers indicate the order of assembly When assembling the microscope make sure that all parts are free of dust and dirt and avoid scratching any parts or touching glass surfaces Power cord Microscope ma...

Page 7: ...ewing head into the mounting port on the zoom body and tighten the viewing head clamping screw with provided hexagonal driver Note Working Environment Requirement 1 Ambient temperature 5 C to 40 C 41...

Page 8: ...e eyepiece as in Fig 5 When Not Wearing Eyeglasses Extend the folded eyeshades This makes observation easier by preventing the inverse incidence of light from between the eyepiece and your eyes 2 2 4C...

Page 9: ...depth The size of aperture iris diaphragm can be adjusted Switch the lever to left to open the aperture iris diaphragm to the right to close the aperture iris diaphragm Check the effect during observa...

Page 10: ...ob to focus the specimen 4 Rotate the zoom body knob to the lowest magnification 0 8 looking only into the left eyepiece adjust the diopter ring on left eyepiece to focus the specimen Then do the same...

Page 11: ...right knob to increase or decrease the focus knob tension 3 Brightness adjustment the right brightness adjustment knob is used to adjust the bottom illumination and the left brightness adjustment kno...

Page 12: ...M 850 STM 864 STM 880 Zoom Ratio 1 6 1 8 1 10 Objective Magnification 0 8 5 0 8 6 4 0 8 8 Eyepiece 22 10 WF Diopter adjustable Binocular Viewing Head Inclined at 20 interpupillary distance range 50 75...

Page 13: ...adjustment ring is too tight Loosen it properly 8 6 Zoom microscope body drops or specimen goes out of focus during observation Tension adjustment ring is too loose Tighten it properly 8 6 Outfit Comp...

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