Barska AY11228 User Manual Download Page 9

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SPECIFICATIONS

1. Length of mechanical tube: 160mm
2. Conjugate distance between object and image: 195mm
3. Condenser: Abbe; numerical aperture: NA1.25 (oil immersion)
4. Illumination: Input 110V or 200V; Output: 20W
5. Fine adjustment range: .002mm
6. Coarse Adjustment Range: 20mm
7. Shift or Mechanical Stage: Longitude - 40mm; Transversal - 70mm
8. Condenser Elevation Range: 15mm
9. Iris diaphragm aperture: 2mm-30mm

Objective Specifications

Classification

Working

Distance

Magnification

Optical

System

Numerical

Aperture

Dry

0.1

37.42mm

4x Adjustable

Focus

Dry

0.65

0.57mm

40x Spring

Adjustable

Focus

Oil

Immer-

sion

1.25

0.18mm

100x Spring

Adjustable

Focus

Dry

0.25

7.14mm

10x

Achromatic

Objective

Note: For oil immersion, please use the index of refraction 1.515 oil

Plain Field

Eyepiece

10x

18mm

Eyepiece Specifications

Classification

Magnification

Field of View (FOV)

Diameter

10x

40x

100x

400x

10x

40x (s)

1000x

100x (oil,s)

Total Magnification

Objective

Magnification

Eyepiece

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 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 power cord into an electrical outlet. Turn microscope

lamp ON.

5. Observe the specimen using the lowest magnification objective

first. The 10x objective provides a larger field of view making it

easier to search the specimen.

Name

Qty

Microscope Stand

Achromatic

Objective

4x (parfocal distance adjustable)

1
2

10x Wide Field Eyepiece w/Pointer

Abbe Condenser NA1.25

Plastic Dust Cover

Lens Cleaning Tissue

Cedar Oil

1A Fuse (spare)

Spare 6V20W Halogen Bulb

Specification

Inspection Certificate

Packing List

10x

40x (s) (parfocal distance adjustable)

100x (oil,s) (parfocal distance adjustable)

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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