OPTO-EDU A15.2601-T User manual

A15.26 01-T

Polarizing Microscope, Transmit

Instruction Manual

To ensure the safety and obtain satisfactory performance, please study this instruction manual thoroughly be

fore start to use the instrument.

Contents

1.Purpose ……………………

2.Specification ……………………

3.Parts Name ……………………

4.Installation ……………………

5.Operation ……………………

6.Maintenance ……………………

7.Troubleshooting

……………………

Outfits ……………………

-1-

1.Purpose

BK-POL Series polarizing microscope is for the field of metallurgy, geology

and minerals.

BK-POL Series polarizing microscope is with gypsum(λ), mica (λ/4)

sample, quartz wedge and attachable mechanical stage. It is an ideal

instrument that has perfect function and quality.

BK-POL/BK-POLR transmitting/reflecting polarizing microscope is perfect

in optical and mechanical quality, and it can be used in observing even,

non-even, transparent, non-transparent mineral sample.

2. Specification

2.1 Total Magnification

2.1.1 Transmitting

Objective

Eyepiece 4X 10X 20X 40X 60X 100X

10X 40X 100X

200X 400X 600X 1000X

2.1.2 Reflecting

Objective

Eyepiece 5X 10X 20X 50X 100X

10X 50X 100X

200X 500X 1000X

2.2 Objectives

Objective N.A. Working distance (mm)

Non-stress

Infinity Plan

Objective

(Transmitting)

PLAN 4X 0.10 12.1

PLAN 10X 0.25 4.64

PLAN 20X(S) 0.40 2.41

PLAN 40X(S) 0.66 0.65

PLAN 60X(S) 0.80 0.33

PLAN 100X(S,Oil) 1.25 0.19

Non-stress

LWD Infinity

Plan Objective

(Reflecting)

LPL 5X 0.13 16.04

LPL 10X 0.25 18.48

LPL 20X 0.40 8.35

LPL 50X(S) 0.70 1.95

PLAN 100X(S,Dry) 0.90 1.10

-2-

2.3 Eyepiece

Magnification

Type View Field Diameter(mm)

10X High eye point 20/22

10X Reticule (0.1mm) 20/22

2.4 Mechanical Tube Length: ∞

2.5 Head: Seidentopf binocular (trinocular) head 30°,

Interpupillary adjustable distance is 48-76mm.

Diopter adjustable range ±5,

Anti-fungal systems.

2.6 Intermediate: 360°part division for analyzer, 2°30’per scale, lock

system

Bertrand Lens (center adjusting)

Gypsum(λ), mica (λ/4)sample, quartz wedge

2.7 Nosepiece: Quadplex or quintuple nosepiece (center adjusting),

nosepiece spanner.

2.8 Revolving Round Stage: Diameter Φ174mm, 360° part scale, 6’per

scale.

2.9 Focusing System: Coaxial coarse and fine focusing knobs, coarse

stroke 22mm.

Fine division 2µm, condenser up-down range 22mm

2.10 Condenser: Abbe condenser, N.A. 1.25, adjustable aperture,

aperture center can be adjustable.

360°part division for polarizer, 5° per scale, lock system

2.11 Electric components: Input voltage AC100-240V, 50/60Hz

Output voltage DC1.2-6V

12V/20W halogen lamp

Rotation potentiometer with power switch

Fuse 5A ф5×20

2.12 Filter: Blue (Amber, green, neutral filter optional)

-3-

3. Parts Name

BK-POL Transmitting Polarizer Microscope (1)

Stage

Locking

Screw

Tube Fixing Hole

Eyepiece

Diopter Adjusting

Trinocular Head

mount Fixi

ng Screw

Bertrand Lens Slip

Complementary Inlet

Analyze

Centering

Nosepiece

Condens

Polarizer

Field Diaphragm

Revolver

Aperture Diaphragm

Centering Screw

Condenser

Thumb Screw

Main Body

Fixing Screw

Stage

Centering

Screw

Clamp

Bertrand Lens

Focuing knob

Bertrand Lens

Centering Screw

Head

Thumb

Screw

Main

Bod

Potentio

mete

Right Fine

Focusing Knob

Right Coarse

Focusing Knob

Revolving

Round Stage

Stage Center

Lock

ing

Screw

-4-

BK-POL Transmitting Polarizer Microscope (2)

Handle

Condenser

Focusing

Knob

Power

Socket

Power

Switch

Coarse Focusing Tension

Adjusting Ring

Left Fine

Focusing Knob

E-intermediate

C-mount

Analyzer Screw

Objectiv

Bertrand Lens

Locking Screw

cursores

Adjustable level

for swing-out

Conden

ser

Left Coarse

Focusing Knob

Slip (First Class Red)

Quartz Wedge

1-4 Order

λ/4

Slip

-5-

BK-POLR Transmitting & Reflecting Polarizer Microscope

Face of

Power House

Back of

Power House

Power house

Potentiometer Power switch

Fuse

Input socket

Output socket

Halogen

lamp house

Halogen Lamp

Centering Knob

Lamp house

fix screw

Ground

glass slider

Aperture diaphragm lever

Field diaphragm lever

Slider handle

Power line

（with plug）

Reflection

illumination

Filter slider

Polarizing slider

-6-

4. Installation

4.1 Installation Condition

4.1.1 The required input voltage: 100V-240V, 50/60HZ

4.1.2 Alcohol, gasoline and paper all are burnt early, please take them

away from the lamp.

4.1.3 The halogen lamp: 12V/20W, G4

4.1.4 The microscope should be used in environment of indoor

temperature 0°-40°C and maximum relative humidity 85%.

4.1.5 Please pay attention to prevent microscope from violent shake and

vibration in application and in carrying. Don’t drag it on the surface of

worktable to avoid damage to microscope and worktable.

BK-POLF Reflecting Polarizing Microscope

(Reflecting)

Rotatable Stage

Support of

Quick Down

Stage Support

Locking Nut

-7-

4.2 Installation

4.2.1 Please confirm the installation condition meets 4.1;

4.2.2 Put out the main body and place it in table, and loose the main body

fixing screw, then put the cost cover out;

4.2.3 Put out the intermediate, fix it into the main body, then tighten the

main body fixing screw; If it is Transmitting & Reflecting Polarizer

Microscope, put out the reflecting illumination unit to fix it.

Installation of reflecting illumination unit: Put out the halogen lamp

house, fix it onto the back of reflecting illumination unit by the fixed screw,

connect the power wire of halogen lamp house into the power output

socket of power house.

4.2.4 Fix the head into the intermediate;

4.2.5 Insert the eyepieces into the tubes;

4.2.6 Put out the dust cover of the nosepiece, and turn the coarse focusing

knob to lower the stage, and find the objective hole with yellow mark in

the nosepiece. Fix the 10X objective into the hole, and turn the nosepiece

clockwise, fix the other objectives as per the power.

4.2.7 Loose the condenser lock thumb and fix the condenser.

5. Operation

5.1 Turn the power switch and the potentiometer to adjust light to be

available;

5.2 Fix the sample on the stage, and move it into the path;

5.3 Turn the nosepiece to put 10X objective into light path, and turn the

focus knobs to get clear image.

5.4 Confirm the polarizing vibrancy direction

The polarizing vibrancy direction has set to be at west-east in factory

when the scale of the polarizing is 0°.

5.5 Check polarizing and analyzer

The field should be dark completely (when there is no sample) when the

scale of polarizer and analyzer is 0°. Please check the position of the

-8-

polarizer and the analyzer if not so.

5.6 Choose the complementary slip as per the sample, then insert into the

slip.

5.7 Put into the Bertrand Lens Slip in the condition of polarizing;

5.8 Adjust the center of the stage.

5.9 Adjustment for round stage rotating center

The rotating axis of the round stage should be in the same line with the

axis of optical system. When rotating the stage, the sample’s center would

coincide with view field’s cross division line intersection point, and image

should move around cross division line intersection point in circular

motion, image should always in the view field. If not, accurate data can’t

be got, and the operation can’t be done correctly, especially for high

power objective.

Adjusting Details:

5.9.1 After getting clear image, choose one image point ( I ) at the

observational position, then moving mineral sample , making I in cross

division line’s point, and it is the center of field (mark: O1 ).

5.9.2 Stage must rotate at least one circle, if actual rotating center (mark:

O) isn’t coincided with field center O1 , image point I will do circular

motion around stage rotating center O .

5.9.3 The angle from rotating stage to initial position is 180°, point I will

move from O1 to the full distance position , the symmetric point to point O.

Adjusting the stage focusing screw, point I will move to point O, then

move mineral sample gently, make point I coincided with field center O1 .

5.9.4 Rotating stage one circle again, if image point I isn’t off point O1, it

means point O has coincided with point O1, then the center adjustment is

finished. If not, please repeat step2 , 3, 4.

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