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BK-POL/BK-POLR
Polarizing Microscope
Operation Manual
To ensure the safety and obtain satisfactory performance, please study this operation instruction thoroughly before your operation.
1.Purpose
2.Specification
Contents
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2
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3.Parts Name
4.Installation
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4
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5.Operation
8. Outfits
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6.Maintenance
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7.Troubleshooting
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1. Purpose
BK-POL/BK-POLR polarizing microscope is for the field of metallurgy, geology and minerals.
BK-POL/BK-POLR 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
Objective
Eyepiece
4X 10X 20X 40X 60X
10X 40X 100X 200X 400X 600X
2.2 Objectives (Non-stress plan objective)
Magnification
4X
10X
20X(S)
40X(S)
60X(S)
2.3 Eyepiece
Type
Cross Eyepiece
Normal Eyepiece
N.A.
0.10
0.25
0.40
0.65
0.80
Thickness of the glass cover
0.17
0.17
0.17
0.17
Magnification View Field Diameter (mm)
10X
10X
20/18
20/18
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2.4 Mechanical Tube Length: ∞
2.5 Head: Seidentopf binocular (trinocular) head 30 °,
Interpupillary adjustable distance is 50-75mm.
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 Φ158mm, 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 AC85-265V, 50/60Hz
Output voltage DC1.2-6V
6V/20W halogen lamp
Rotation potentiometer with power switch
Fuse 2A ф5×20
2.12 Filter: Blue (Amber, green, neutral filter optional)
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3. Parts Name
Eyepiece
Diopter Adjuster
Bertrand Lens Slip
Centering
Nosepiece
Trinocular Head
Complementary Inlet
Revolving Round Stage
Condenser
Aperture
Diaphragm
Centering
Screw
Polarizer
Field Diaphragm
Revolver
Condenser Thumb
Screw
Stage
Centering
Screw
Right Coarse
Focusing
Knob
C-mount Fixing Screw
Head Thumb Screw
Tube Fixing Hole
Analyzer
Main
Body
Fixing
Screw
Main
Bod y
Clamp
Potentio
-meter
Right Fine
Focusing Knob
BK-POL Transmitting Polarizer Microscope (1)
E-intermediate
Handle
Condenser
Focusing
Knob
Power
Switch
Power
Socket
C-mount
Adjusting Ring
BK-POL Reflecting Polarizer Microscope (2)
λ Slip (First Class Red)
λ/4 Slip
Analyzer Screw
Objectives
Stage Lock
Left Fine
Focusing Knob
Left Coarse
Focusing Knob
Coarse Focusing Tension
Screw
Quartz Wedge
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Power
House
Lamp Power
Adjusting
Knob
Halogen
Lamp House
Lamp House
Fixed Screw
Diaphragm
Choosing Slide
Diaphragm Choosing
Slide Handle
Reflecting Illumination Unit
Polarizing Choosing
Slide Handle
Polarizing
Choosing Slide
Halogen Lamp
Centering Knob
Power Wire
Back of Halogen Lamp House
Face of
Power House
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Power
Switch
Back of
Power House
Power
Output
Power
Input
Fuse
BK-POLR Transmitting & Reflecting Polarizer Microscope
4. Installation
4.1 Installation Condition
4.1.1 The required input voltage: 85V-265V, 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: 6V/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.
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.
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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 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.
6. Maintenance
6.1 Clean microscope
6.1.1 Don’t touch the lens with hand, Dust on lens should be cleaned by soft brush or absorbent cotton or cleaned by absorbent cotton, lens paper with the mixture of alcohol and ether (proportion 1:4).
6.1.2 Alcohol and ether all are burnt early, please take them away from fire. Be careful for turn on and off power.
6.1.3 Don’t clean painted metal and galvanizing metal with organic solvent such as alcohol, ether or the mixture of the both. Silicon cloth or soft cleaning preparation is suggested to clean it.
6.1.4 Plastic should be cleaned by soft cloth with clear water.
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6.2 Environment of using and placing
6.2.1 Microscope should be used and placed in a cool, dry, non-dust, non-shake and non-corrosive gases environment.
6.2.2 Microscope should be used in environment of indoor temperature
0 °-40°C and maximum relative humidity 85%.
6.2.3 Removing equipment is suggested to be installed when microscope used in heavy humidity area to avoid fungus and mist damage instrument.
6.2.4 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.
6.3 Replacement of bulb
6.3.1 Turn off power, and pull out plug.
6.3.2 Wait the bulb become cool.
▲ Please be sure that the bulb is cool, then follow by the nest operations.
6.3.3 Lay aside the microscope reliably, unscrew the knurled thumb screw of the lamp housing cover on the underside of base.
6.3.4 Pull over the lamp housing cover.
6.3.5 Pull out the bulb should be replaced, hold a new bulb with silk cloth to avoid fingerprint and dust affect bulb brightness and service life, and insert fully the contact pins into the bulb socket.
6.3.6 Close the lamp housing cover, and screw the knurled thumb screw.
▲After working for above 10 hours continuously, better cut off the microscope about 30 minutes.
6.4 Replacement of fuse
6.4.1 Cut off power of microscope, and pull out the plug.
6.4.2 Unscrew fuse cap in the back of base, take out old fuse.
6.4.3 Replace a new fuse, then screw the fuse cap.
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6.5 Stop to use microscope, please cut off power, cover the dust cover, and place it in a cool and dry environment.
7. Troubleshooting
In the period of using BK series microscope, if there is any trouble occurs, please referring to the following sheet listed some common troubleshooting resolve them.
Trouble Causation
Plug is unreliable
Remedy
Plug in again
Switch on but bulb dark
Bulb is broken Change bulb
Fuse is broken Change fuse
Bulb is flickering or brightness is unsteady
Brightness of view field isn’t enough or is
Uneven
Brightness of view field isn’t enough or is
Uneven
Image isn’t clear
(contrast or definition isn’t enough)
Bulb is unstable Insert it again
Bulb is broken Replacing bulb
Bulb specification doesn’t meet the requirement
Brightness isn’t adjusted correctly
Objective isn’t in correct position
The size of iris aperture is too small
Lens eyepiece,
(objective, condenser, light collector) has dust
Position of condenser is too low
Cover glass of specimen doesn’t meet the requirement
Cover glass of specimen isn’t in up direction
Surface of objective lens isdirty (especially it is easy for the front lens of
40X objective to dip in immersion oil)
Immersion oil isn’t used for 100X objective (oil)
Immersion oil doesn’t meet the requirement
Replacing bulb
Adjust rotation potentiometer
Make the objective in correct position
Adjust the size of iris aperture
Clean it
Higher condenser
Use required thickness cover glass (0.17mm)
Place specimen correctly
Clean it
Use immersion oil
Use immersion oil supplied by us
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Trouble Causation
There is bubble in immersion oil
Size of iris aperture isn’t proper
Position of condenser is too low
Remedy
Clear the bubble way
Adjust the size of iris aperture
Readjust the position of condenser
One side of image is dark or image is moving as focusing
Objective isn’t in correct position
Specimen isn’t placed correctly
Objective touches specimen as changing low times objective to high times objective
Cover glass of specimen isn’t in up direction
Cover glass doesn’t meet the requirement
Image observed by two eyes aren’t in superposition entirely.
It is easy for eyes to be tired during observing
Interpupilary
Diopter isn’t adjusted correctly distance isn’t adjusted correctly
Make the objective in correct position
Place specimen levelly on stage and clip it with clamp
Place specimen correctly
Use required thickness cover glass (0.17mm)
Adjust interpupilary distance according to two eyes
Readjust diopter
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BK-POL Series Polarizing Microscope Outfits
Items Specification BK-POL BK-POLR
WF 10X-20mm ●
WF 10X-20 mm (Reticule 0.1mm) ●
Eyepiece
WF 10X-18mm ●
Non-stress
Infinity
Plan Objective
60× (S)
Seidentopf Binocular
Head
Inclined 30 °, Rotatable 360°,
Interpupilary Distance: 50-75mm.
Trinocular Head
Inclined 30 °, Rotatable 360°,
Interpupilary Distance: 50-75mm.
Nosepiece Quintuple
Polarizing Unit
Bertrand Lens
λSlip
1/4 λSlip
Quartz Wedge
WF 10X-18 mm (Reticule 0.1mm)
4×
10×
20 × (S)
40× (S)
Rotatable 360 °(Module Type, Can Be Locked)
Inbuilt, Center Adjustable
First Class Red
( Ⅰ-Ⅳ Class)
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Revolving
Stage
Round Rotatable 360 °, Center Adjustable, Division
1 °, Vernier division 6’
Polarizing Attached Mechanical Stage
Condenser Abbe N.A. 1.25 Non-stress
Polarizing Unit with
Scale
Rotatable 360 °,
Can Be Locked
Koehler Illumination 6V/20W Halogen Lamp
2 A Fuse
Filter
C-mount
Spare: 1 pc
Blue,
Amber
Green
Neutral
0.5
×, 1×
Adaptor for Digital Camera
Halogen Lamp House 12V/50W
Reflecting Polarizing
Unit
Power House
Diaphragm Choosing Slide
Polarizer Choosing Slide
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Note: “ ●”In Table Is Standard Attachment. “○” Is Optional Accessories
Packing Size: 785mm ×340mm×430mm
Gross Weight: 15 kg Net Weight: 13 kg
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BK-POL/ BK-POLR Polarizing Microscope Operation Manual
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