background image

                                                         

 

 12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 

     

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

The tight tension of the coarse focus knob 

has already been adjusted before leaving 

factory. If loosen (e.g. the stage slip down by 

its weight), please screw the intention 

adjustment collar

 to the right position by 

the supplied spanner. 

3.3.4 Condenser Adjustment

Fig.20

 

Turn the condenser focus knob to move the 

condenser up and down. Raise the condenser 
when using the high magnification objective, 
and descend it when using the low 
magnification one. 



 The condenser and the objective are coaxial. 

It has been adjusted before leaving factory, 

so the user needn’t to adjust them by self (the 

distance between the top of the condenser 

and the stage should be in the range of 

0.03mm~0.4mm.) 



 The highest position of the condenser has 

been adjusted too. It also needn’t any user’s 

operation

.

 

3.3.5 Aperture Iris Diaphragm Adjustment

Fig.20,21

 

Turn the aperture iris diaphragm lever

 to 

adjust the aperture iris diaphragm. 

Generally, setting the aperture iris 

diaphragm to 70- 80% of the N.A. of the 

objective in use will provide an image with good 

contrast. 

 

If the size of the aperture diaphragm 

minified, the brightness and the resolution 

declined, while the contrast and the depth of 

field increased; In other words, if the size 

largen, the brightness and the resolution 

improved, but the contrast and the depth of 

field declined. 

 

Generally, setting the size of the condenser 

aperture diaphragm at 70%

80% of the 

numerical aperture, you can obtain a clear 

image with enough contrast. If the open of 

the aperture diaphragm is too small, the 

resolution were very low, so please don’t   

       

                     

Magnification

10

×

 

         

  N.A.

0.25

 

 

Fig.20 

Fig.21 

Specimen 

Image of Aperture Iris Diaphragm 

Summary of Contents for STM-2030BD

Page 1: ...gital biological microscope To insure safety and obtain optimum performance and familiarize yourself fully with the use of this microscope We recommend that you read the manual thoroughly before opera...

Page 2: ...er Notice 2 1 Components 4 2 Assembly 5 2 1 Assembly Diagram 5 2 2 Assembly Steps 6 3 Adjustment Operation 10 3 1 Adjustment Sets 10 3 2 Operation 11 4 Specification Table 14 5 Outfit 15 6 Troubleshoo...

Page 3: ...it will bring a serious damage to the instrument 8 Use the factory supplied power cord please II Maintenance 1 All the lenses have been well checked and adjusted It is forbidden to disassemble them y...

Page 4: ...re 8 Do not disassemble any parts of the microscope which will affect the function or decline the performance of the microscope 9 Place the instrument in a cool dry position When not using the microsc...

Page 5: ...4 1 Components STM 2030BD Digital Biological Microscope Eyepiece Digital viewing head Nosepiece Objectives Main body Condenser Collector Stage Ruler...

Page 6: ...s 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 Keep well with hexagon wrench provided When replacing th...

Page 7: ...ieces into the eyepiece tube until they are against each other as shown in Fig 4 Fig 4 Fig 3 NOTE Operation Conditions 1 Temperature 0 40 Maximum Relative Humidity 85 2 High Temperature High Temperatu...

Page 8: ...Clean the objective regularly for lens is susceptible to dust When operating use 10 magnification objective to search and focus specimen firstly then replace with higher magnification objective if ne...

Page 9: ...Plug the power cord into the power supply receptacle safely Make sure the connection is well Do use the supplied power cord all the time If lost or damaged select the same standard cord please 2 2 6...

Page 10: ...halogen Lamp 6V20W Replace the lamp as follows if necessary 1 Please set the main switch to O off state before replacing and make sure the bulb the lamp room and periphery are all cool enough to carry...

Page 11: ...15 Right Coarse Focus Knob Right Fine Focus Knob Tension Adjustment Collar Fig 14 Condenser Adjustment Knob Longitudinal Adjustment Knob Transversal Adjustment Knob Locking Set Left Fine Focus Knob Le...

Page 12: ...f you finish the observation with the short working distance objective and want to change another one be careful of not letting the objective touch the specimen 3 3 3 Focusing the specimen 18 19 1 Foc...

Page 13: ...r has been adjusted too It also needn t any user s operation 3 3 5 Aperture Iris Diaphragm Adjustment Fig 20 21 Turn the aperture iris diaphragm lever to adjust the aperture iris diaphragm Generally s...

Page 14: ...3 3 6 Adjusting the Interpupillary Distance Fig 22 The interpupillary distance range 55mm 75mm While looking through the eyepieces move both sliders to adjust interpupillary distance until the left an...

Page 15: ...oving Range 30mm Fine Division 0 004mm Condenser Abbe Condenser NA 1 2 Stage Double Layers Mechanical Stage 140mm 140mm Moving Range 74 50mm Illumination 6V20W Halogen Lamp 4 2 Eyepieces and Objective...

Page 16: ...nal Condenser Abbe Condenser NA 1 2 1 Optional Nosepiece Quadruple 1 Optional Illumination 6V20W Halogen Lamp 1 Optional Spare lamp 6V20W Halogen lamp 2 Optional Spare fuse 2A 2 Optional Eyepieces 10...

Page 17: ...oo thick or too thin Use the standard coverslip 0 17mm The specimen is placed inversely Reversal it back There was oil on the dry objective easily happened in 40X objective Clean it up There are stain...

Page 18: ...er magnification The specimen is placed inversely The coverslip is too thick Turn inversely Use the standard coverslip 0 17 mm The specimen is not easy to move The specimen holder is not fixed Fix it...

Page 19: ...18 The bulb flickers or the brightness is vertiginous The bulb is going to burn out Replace it The bulb is not entirely inserted into the holder Check and insert it again...

Reviews: