Motic BA310Met-H Manuel utilisateur

We are constantly endeavouring to improve our instruments and to adapt them to the requirements of

modern research techniques and testing Methods. This involves modification to the mechanical

structure and optical design of our instruments.

Therefore, all descriptions and illustrations in this instruction manual, including all specifications are

subject to change without notice.

INFINITY OPTICAL SYSTEM

An optical configuration (in which the specimen is located at the front focal plane of the objective)

gathers light transmitted through or reflected from the central portion of the specimen and

produces a parallel bundle of rays projected along the optical axis of the microscope toward the

tube lens.

A portion of the light reaching the objective originates from the periphery of the specimen, and

enters the optical system at oblique angles, moving forward diagonally but still in parallel bundles

toward the tube lens. All of the light gathered by the tube lens is then focused at the intermediate

image plane, and subsequently enlarged by the eyepiece.

The real merit of the infinity based system lies in its ability to accommodate modular accessories in

the optical path and produce a flexible design.

TABLE OF CONTENTS

1. Description 5

1.1 Application 5

1.2 Nomenclature 6

1.3 Main specifications 8

2. Operation environment 8

3. Assembling the Microscope 9

3.1 Input voltage 9

3.2 Illumination (halogen lamp) 9

3.3 Focusing Block 9

3.4 Stand 9

3.5 Mechanical Stage 9

3.6 Objective 9

3.7 Epi Illuminator 10

3.8 Eyepiece tube 11

3.9 Eyepiece 11

3.10 Filter 11

4. Microscopy 12

4.1 Power switch and Illumination Brightness Adjustment 12

4.2 Coarse and Fine Focusing 12

4.3 Coarse Focus Torque Adjustment 13

4.4 Stage upper limit stop adjustment 13

4.5 Adjustor 14

4.6 Interpupillary Distance Adjustment 14

4.7 Diopter Adjustment 14

4.8 Use of Polariser and Analyser 15

4.9 Field Diaphragm Centering 15

4.10 Aperture Diaphragm Adjustment 16

4.11 Brightness and Contrast Adjustment 17

4.12 Blub Replacement 17

5. Photomicrographic Procedure 19

6. Troubleshooting Table 20

6.1 Optical 20

6.2 Electrical 21

7 Care and Maintenance 22

7.1 Lenses and Filters 22

7.2 Cleaning of painted or plastic components 22

7.3 Instrument storage 22

1. DESCRIPTION

1.1 Application:

The Motic BA310Met-H is suitable for use in all areas of research and industry observing opaque

material, e.g. in

a. Metallography

b. Mineralogy

c. Mechanical engineering

d. Electronics

Except bright field observation, BA310Met-H is also used for polarized light observation.

BA310Met-H can be installed with digital camera, video camera for photomicrography.

1.2 Nomenclature

1.2.1 BA310Met-H

(Fig.1)

1. Eyepiece 2. Bincular eyepiece tube 3. EPI illuminator

4. Revolving nosepiece 5. XY-axis travel knobs 6. Stand

7. Photo port 8. Pole 9. Focusing block

10. Metallography objective 11. Mechanical stage (optional) 12. Lamp house

13. Lamp house power cable 14. MRL100 Power unit

1.2.2 EPI Illuminator

(Fig.2)

1. Clamp screw 2. Field diaphragm adjustment wheel

3. Field diaphragm centering screw 4. Aperture diaphragm adjustment wheel

5. Analyser 6. Main body

7. Polariser 8. Filter silder

9. 50W Halogen lamp house

1.3 Main Specifications

Model BA310Met-H

Total Magnification 50x ~ 500x (optional, magnification max.: 1000x)

Eyepieces High eye-point, N-WF 10x (FN20), Diopter adjustable

Infinite Metallurgical Plan Objectives 5x/ 0.13, 10x/ 0.30, 20x/ 0.40, 50x/ 0.55 (optional 100x/ 0.80)

Observation Tube 30° Inclined Siedentopf Trinocular Head

Interpupillary Distance 55 ~ 75mm

Nosepiece Reversed quadruple

Focusing Block Coaxial movement; 30mm stroke; 0.2mm/ turn

2μm minimum increments

Epi illumination 12V/ 50W halogen; reflected light system

Filters (for Epi illumination) Frosted glass, Blue, Yellow, Green

Mechanical Stage Dimension: 180mm X 140mm,

Movement Range: 100mm X 80mm

Stand Stand dimension: 300mm X 300mm

2. OPERATION ENVIRONMENT

Avoid placing the instrument in locations exposed to direct sunlight, dust, vibration, high temperature,

high humidity and where it is difficult to unplug the power supply cord.

Indoor use

Altitude: Max 2000 Meters

Ambient temperature: 5°C to 40°C

Maximum relative humidity: 75% for temperature up to 31°C decreasing linearly to 50% relative

humidity at 40°C.

Supply voltage fluctuations: Not to exceed ±10% of the normal voltage.

3. ASSEMBLING THE MICROSCOPE

3.1 Input voltage

The automatic voltage selection works with a broad range of settings. However, always use a

power cord that is rated for the voltage used in your area and that has been approved to meet local

safety standards. Using the wrong power cord could cause fire or equipment damage.

In case of using the extension cord, use only a power supply cord with a protective earth (PE) wire.

In order to prevent electric shock, always turn the power switch on the power supply off before

connecting the power cord.

Illumination

Halogen: 12V/ 50W

3.2 Illumination (halogen lamp)

The quartz halogen lamp, used as a light source, has higher luminance and color temperature

than

conventional tungsten lamps. The luminance is approximately four times greater.

As long as the lamp voltage is kept constant, the halogen lamp maintains the same level of

brightness and color temperature regardless of whether it is new or nearing the end of its life.

3.3 Focusing block

Focusing block is assembled on pole of the stand, and it could be fixed at any position by the

lock screw.

The fixture dimension for focusing block is Ø32mm.

 Movement range for focusing block is 30mm.

3.4 Stand

Stand has a pole whose height is 300mm and diaMeter is Ø32mm.

Adjustor on the pole could prevent focusing block from sliding down.

3.5 Mechanical Stage

Mechanical stage is assembled on the stand.

3.6 Objectives

Lower the stage completely. Screw the objectives into the revolving nosepiece so that clockwise

rotation of the nosepiece brings the next higher magnification objective into position.

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