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7

SPECIFICATIONS 

Model AY11228

1. Interpupillary Adjustment: 55mm - 75mm

2. Working Stage Diameter: 95mm

3. Focus Knob Adjustment Range: 60mm

4. Elevator Adjustment Range: 110mm

5. Right Diopter Adjustment Range: +4 to -6 dopters

6. Illumination:     

   Input Voltage: 110V AC or 220V

   Output: Oblique illumination: 12V 10W Halogen Lamp

Optical Specifications - Model AY11228

20x, 40x

Objective Zoom Scale

-

0.5x

95

7x-

45x

28.6-

4.4

3.5x-

22.5x

5.3x-

33.8x

10.5x-

67.5x

14x-

90x

57.2-

8.8

38.1-

5.9

19.0-

2.9

14.3-

2.2

156

102

44

30

0.75x 1.5x

2x

Accessory Large Objective
Working Distance (mm)

WF10x/20mm

Total Magnification

Field of View Objective Dia. (mm)

8.8x-

56x

25.7-

4.0

4.4x-

28x

6.6x-

42x

13.2x-

84x

17.6x-

112x

51.4-

8

34.3-

5.3

17.1-

2.7

12.9-

2.0

WF12.5x/18mm

Total Magnification

Field of View Objective Dia. (mm)

10.5x-

67.5x

22.9-

3.6

5.3x-

33.8x

7.9x-

58.6x

15.7x-

101x

21x-

135x

45.8-

7.2

30.5-

4.8

15.3-

24

11.5-

1.8

WF15x/16mm

Total Magnification

Field of View Objective Dia. (mm)

14x-

90x

17.0-

2.7

7x-

45x

10.5x-

67.5x

21x-

135x

28x-

180x

34.0-

5.4

22.7-

3.6

11.3-

1.8

8.5-

1.4

WF20x/12mm

Total Magnification

Field of View Objective Dia. (mm)

17.5x-

112.5x

12.9-

2.0

8.8x-

56.3x

13x-

84.4x

26.3x-

169x

35x-

225x

25.8-

4.0

17.2-

2.7

8.6-

1.3

6.5-

1.0

WF25x/9mm

Total Magnification

Field of View Objective Dia. (mm)

2x, 4x

90mm

Wide Field 10x, 20mm

Total

Magnification

Working Distance

Eyepiece Magnification

& Field Diameter (mm)

Objective

Magnification

Optical Specifications - Model AY11232

Model AY11232

1. Interpupillary Adjustment: 55mm - 75mm

2. Working Stage Diameter: 95mm

3. Focus Knob Adjustment Range: >50mm

4. Elevator Adjustment Range: 110mm

5. Diopter Adjustment Range: +/- 5 diopters

6. Illumination:     

    Input Voltage: 110V AC or 220V

    Output: Oblique Illumination: 12V 10W Halogen Lamp

    Transmitted Illumination: 12V 10W Halogen Lamp

8

PARTS LIST

OPERATION

1. Remove components from package.  

    identify all parts before assembling. 

2. Tighten the knob on the stand to  

    prevent the elevator from sliding  

    down.

3. Fix the binocular body on the stand  

    with the tightening screw.

4. Check the input voltage to ensure that  

    it conforms to the microscopes    

    requirement.

SELECTING THE ILLUMINATION  

1. Depending on microscope use, select  

    oblique or transmitted illumination. 

2. The Brightness Adjustment knobs  

    change the oblique or transmitted   

    light independently. The transmitted  

    illuminator fluorescent lamp cannot   

    be adjusted.

3. The angle of the oblique lamp can be  

    adjusted to ensure optimum lighting   

    of the sample.  

1. Remove components from package.  

    identify all parts before assembling. 

2. Check the input voltage to ensure that  

    it conforms to the microscopes    

    requirement.

SELECTING THE ILLUMINATION  

1. Depending on microscope use, select  

    oblique or transmitted illumination. 

2. The Brightness Adjustment Knobs  

    change the oblique or transmitted light  

    independently. The transmitted    

    illuminator fluorescent lamp cannot be  

    adjusted.

3. The angle of the oblique lamp can be  

    adjusted to ensure optimum lighting of  

    the sample.

CHANGING THE INTERPUPILLARY 

DISTANCE

1. The distance between the observer's  

    pupils is the interpupillary distance.   

2. To adjust the interpupillary distance  

    rotate the prism caps until both eyes  

    coincide with the image in the    

    eyepiece. 

  

Name

Model AY11228

Model AY11228

Model AY11232

Model AY11232

Qty

Binocular Body (incl. 2x, 4x obj.)

1

10x Wide Field Eyepiece 

2

Eyeshade

10V 10W Halogen Lamp 

12V 10W Halogen Lamp w/cup

2

Fuse 2A (spare)

1

Lens Cleaning Tissue

1

Dust Cover

1

Black/White Working Stage

1

Specifications

1

Packing Slip

1

Quality Inspection Certificate

1

1 ea.

(spare)

Name

Qty

Binocular Body (incl. 2x, 4x obj.)

1

10x Wide Field Eyepiece 

2

Eyeshade

12V 10W Halogen Lamp 

12V 10W Halogen Lamp w/cup

2

Fuse 2A (spare)

1

Lens Cleaning Tissue

1

Dust Cover

1

Specifications

1

Packing Slip

1

Quality Inspection Certificate

1

1 ea.

(spare)

Summary of Contents for AY11228

Page 1: ...tify the customer accordingly BARSKA reserves the right to replace any product which has been discontinued from its product line with a new product of comparable value and function This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function or subjected to abuse misuse mishandling or unauthorized repair Further product malfunction or...

Page 2: ...ather 1 2 Dry Weather 1 1 4 After use cover the instrument with the plastic dust cover 5 If instrument is to be stored for an extended period of time remove the eyepiece and oculars and store in a moisture proof container MODEL AY11240 AY11238 2 MICROSCOPE USAGE BARSKA Model AY11240 and Model AY11238 are designed for biological studies such as specimen examination They can also be used for examini...

Page 3: ... parts before assembling 2 Attach 4x 10x and 40x objectives to revolving turret 3 Place the specimen on the stage and secure with spring clips NOTE The cover glass must face upward the thinner glass is the cover glass otherwise when the 40x objective is used the specimen cannot be observed Observation is best when the thickness of the cover glass is 0 1 1 1mm and the cover glass is 0 17mm 4 Plug p...

Page 4: ...ustment knob until the image is in sharp focus When using other objectives rotate the fine focus adjustment until the image is in focus Model AY11240 Model AY11238 6 MODEL AY11228 AY11232 MICROSCOPE USAGE BARSKA Model AY11228 and Model AY11232 are designed for biological studies such as specimen examination They can also be used for examining bacteria and for general clinical and medical studies S...

Page 5: ...ATION 1 Remove components from package identify all parts before assembling 2 Tighten the knob on the stand to prevent the elevator from sliding down 3 Fix the binocular body on the stand with the tightening screw 4 Check the input voltage to ensure that it conforms to the microscopes requirement SELECTING THE ILLUMINATION 1 Depending on microscope use select oblique or transmitted illumination 2 ...

Page 6: ...eft eyepiece and bring a specific point into focus using the focus knob b By turning the diopter ring adjustment for the left eyepiece bring the same point into sharp focus c Then bring the same point into focus through the right eyepiece by turning the right diopter ring d With more than one viewer each viewer should note their own diopter ring position for the left and right eyepieces then befor...

Page 7: ...RATION 1 Remove components from package identify all parts before assembling 2 Tighten the knob on the stand to prevent the elevator from sliding down 3 Fix the binocular body on the stand with the tightening screw 4 Check the input voltage to ensure that it conforms to the microscopes requirement SELECTING THE ILLUMINATION 1 Depending on microscope use select oblique or transmitted illumination 2...

Page 8: ...o both eyes at the same time the diopter ring may need adjustment DIOPTER RING ADJUSTMENT 1 To adjust the eyepiece for viewing with or without eyeglasses and for differences in acuity between the right and left eyes follow the following steps a Observe an image through the left eyepiece and bring a specific point into focus using the focus knob b By turning the diopter ring adjustment for the left...

Page 9: ...ce 16 PARTS LIST OPERATION 1 Remove all components from package Identify all parts before assembling instrument 2 Attach 4x 10x and 40x objectives by screwing into revolving turret Tighten and secure to maximum finger pressure only 3 Place the specimen on the stage and secure with spring clips NOTE The cover glass must face upward the thinner glass is the cover glass otherwise when the 40x objecti...

Page 10: ...e wiped off all of the cedar oil OPERATION cont ADJUSTING THE CONDENSER APERTURE 1 The numerical aperture of the condenser should match the numerical aperture of the objective being used 2 To make sure that the objectives are imaging properly especially the 40x and 100x follow this procedure 1 Take off the eyepiece 2 Look through the eyepiece 3 The smallest circle or light that you can see is the ...

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