STEINDORFF NYMCS-620 User manual

STEINDORFF®
METALLURGICAL
MICROSCOPE
NYMCS-620
Instruction Manual
It is recommended strongly that you study this manual thoroughly before using the microscope. Retain this manual
in an easily accessible place near the work desk for future reference.

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STEINDORFF®
USER NOTICE ……………………………………………………………………………………………
2
1. Components …………………………………………………………………………………………..
3
2. Installation …………………………………………………………………………………………....
4
3. Operation ……………………………………………………………………………..........................
9
4. Observation Methods ………………………………………………………………………………...
16
5. Specification …………………………………………………………………………………………..
18
6. Troubleshooting ………………………………………………………………………………………
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CONTENTS

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STEINDORFF®
I. Safety note
1. Carefully open the box, avoid the accessories, like lens, dropping to ground and being damaged.
2. Do keep the instrument out of direct sunlight, high temperature or humidity, dusty and easy shaking
environment. Make sure the stage is smooth, horizontal and firm enough.
3. When moving the instrument, please use two hands to grip with the two sides of the microscope body.
4. When running, the lamp house and nearby parts will be very hot. Please ensure there is enough cooling
room for them.
5. Make sure the instrument is earthed, to avoid lighting strike.
6. For safety, be sure the main switch is in “O” (off) state before replace the halogen lamp or the fuse,
then cut off the power, and do the operation after the lamp bulb and the lamp house completely cool.
7. Use the factory supplied power cord, please.
II. Maintenance
1. All the lenses have been well checked and adjusted. It is forbidden to disassemble them yourself.
2. The nosepiece and coarse/fine focus unit have a compact and precise frame, please don’t disassemble
them as possible as you can.
3. Keep the instrument clean, wipe dust regularly, and be attention to avoid contaminating the optical
elements especially.
4. The contaminations on the prism, as finger mark and oil, could be gently wiped with a piece of soft
cloth or tissue paper, gauze which has been immersed in pure alcohol or xylene.
(Note that the alcohol and the xylene are all burned easily, do not let them near the fire, and use
them in a drafty room as possible as you can.)
5. Don’t use organic solvent to wipe the non-optical elements, when you need to clean, use the soft
detergent, please.
6. When using, if the microscope is splash by liquid, cut off the power at once, and wipe up the moisture.
7. Do not disassemble any parts of the microscope. That will affect the function or decline the
performance of the microscope.
8. Place the instrument in a cool, dry position. After using the microscope, remember to cover it with dust
helmet. Do wait for the lamp house cooling completely before cover.
USER NOTICEUSER NOTICE

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STEINDORFF®
Components name of NYMCS-620
1. COMPONENTS

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STEINDORFF®
2.1. Installation Diagram
The following figure shows the installation sequence of the components. The number in the figure show the
installation steps.
Before installing, be sure every components is clean, do not score any parts or glass surface.
Keep well with the supplied hexagon wrench. When changing the components, you will need it again.
2. INSTALLATION

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STEINDORFF®
2.2. Installation Steps
Fig. 1
Fig. 2
Fig. 3
2.2.1. Installing the Mechanical Stage Support Device
1. Before installing the device, be sure to adjust the
coarse focus knob ①. Make the guide board ②
down to the lowest position, so you can install
the mechanical stage support device easily.
2. Hold on the mechanical stage support device
(Fig. 2), place it from the top of the guide board
(Fig. 1), and let the device (Fig. 2) falling free
until it reach the limit position. Use the hexagon
wrench screw down the locking block ③, make
the stage support device and the guide board
fixed together (Fig. 3).
The mechanical stage ⑤have been adjusted
horizontally and fixed together before leaving
factory. Do not disassembly unless necessary,
that may affect the observation precision of the
instrument.

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STEINDORFF®
2.2.2. Installing the reflected light brightfield/darkfield
illuminator
1. Installing the reflected light illuminator (Fig. 4)
on the head of microscope body (Fig. 5), and
turn to a proper position, then screw down the
bolt ⑥to fix it.
2.2.3. Installing the Video Port
1. Insert the video port (Fig. 6) into the illuminator
(Fig. 4), then screw down the bolt to fix it.
2.2.4. Installing the Objective
1. Adjusting the coarse focus knob until the support
device of the mechanical stage reach its low limit
position.
2. Wresting the lowest magnification objective onto
the nosepiece from the left or the right side, then
push the nosepiece clockwise, then place other
objectives by the sequence of low to high
magnification (Fig.7).
oInstalling objective this way will make the
change of magnification to be easier while in
using.
Clean the objective regularly, the objective of
the inversed microscope is very sensitive to
dust.
When replacing the objective, slowly turning
the nosepiece until you hear “clicked”, that
means the objective enter the required
position--the light path center.
Fig. 4
Fig. 5
Fig. 6
Fig. 7

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STEINDORFF®
2.2.5. Installing the Video Port (optional)
Insert the video port (Fig. 8) into the trinocular unit
(Fig. 6), then screw down the bolt ⑨to fix it.
2.2.6. Installing the Eyepiece
Insert the eyepiece (Fig. 9) into the eyepiece tube
until they are against each other.
2.2.7. Installing the Lamp Housing
1. Pushing the lamp holder (Fig. 10) into the
illumination kits (Fig. 4) gently until they are
against each other, turn to a proper position, and
then screw down the bolt ⑧to fix it.
2. Insert the power plug ①into the power jack of
the microscope ②, and screw down the bolt to
fix it. The result in show in (Fig. 12).
oWhen using transmitted light illuminator,
remove the dust cap first, then pushing the lamp
holder (Fig. 10) into the jack on the back of the
microscope (Fig. 11) gently and turn to a proper
position, then screw down the bolt ④. Insert the
power plug ①into the power jack of the
microscope ③, and screw down the bolt to fix it.
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12

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STEINDORFF®
2.2.8. Attaching the Halogen Bulb
The applicable lamp bulb is the 24V100WHAL.
1. Fully loosen the clamping screw ①at the top of
the lamp housing using the provided hexagon
wrench.
2. Remove the lamp housing ②by lifting it up.
3. Tilt the bulb socket by 90° (Fig. 14).
4. While pushing down the bulb clamping levers,
hold the halogen bulb with gloves or a piece of
gauze, insert the bulb pins into the sections as far
as they will go. Then return the lamp clamping
lever gently back to the original position to
clamp the bulb.
Caution for bulb replacement during or right after use
When using, or soon after it is turned off the lamp, the lamp
house and nearby parts will be very hot and will cause
serious burns. Please turn the main switch on “O” (off), pull
out power plug, and make sure the bulb, the lamp room and
periphery are all cool before replacing the bulb.
Please insert the lamp gently, or it will be damaged
by excessive extrusion.
Do not touch the Halogen bulb with your bare
hands. It will shorten the service life or cause it to
burst. If you leave finger marks on the surface
carelessly, clean it with a dry soft cloth.
When using, the temperature of the lamp
housing surface will be very hot, please pay
attention to the warning written on the Warning
board.
Fig. 13
Fig. 14
Fig. 15

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STEINDORFF®
3.1. Turning on the Lamp
Connect the power, press the main switch ①to the “I” (on)
position.
oWhen using transmitted light illumination, fixing
the lamp holder into the jack on the back of the
microscope (Fig. 11), and insert the power plug
into the power jack of the microscope (③in Fig.
11).Then press the main switch ①to the “‖” (on)
position.
3.2. Adjust Brightness
Turning the brightness adjustment knob ②clockwise, the
voltage raise, and the brightness strengthen; turning with the
anti-direction, the voltage decline, and the brightness
weaken.
oUsing the lamp in a low voltage condition, will
prolong the use life.
3.3. Adjust the Tension Adjustment Collar
The tightness of the tension adjustment collar has
adjusted before leaving factory, if finding it’s
loosing (the mechanical stage drop itself because
of deadweight), please turning the tension
adjustment collar ③until the tightness is in order.
Fig. 16
Fig. 17
Collar
3. OPERATION

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STEINDORFF®
3.4. Turning on the Lamp
Connect the power, press the main switch ①to the “I” (on)
position.
oWhen using transmitted light illumination, fixing
the lamp holder into the jack on the back of the
microscope (Fig. 11), and insert the power plug
into the power jack of the microscope (③in Fig.
11).Then press the main switch ①to the “‖” (on)
position.
3.5. Adjust Brightness
Turning the brightness adjustment knob ②clockwise, the
voltage raise, and the brightness strengthen; turning with the
anti-direction, the voltage decline, and the brightness
weaken.
oUsing the lamp in a low voltage condition, will
prolong the use life.
3.6. Adjust the Tension Adjustment Collar
The tightness of the tension adjustment collar has
adjusted before leaving factory, if finding it’s
loosing (the mechanical stage drop itself because
of deadweight), please turning the tension
adjustment collar ③until the tightness is in order.
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Diopter
adjustment ring
Smoothing
presses

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STEINDORFF®
3.7. Focus
When not using the video set
1. Push in the light path selector lever ①
completely, then observe with both eyes. Use the
10×objective focus, to avoid the objective touch
with the specimen, you should raise the
mechanical stage at first, let the specimen close to
the objective, then slowly separating them to
focus.
2. The operator can converse turn the coarse focus
knob to get the specimen down ,and search
images in the 10×ocular simultaneously, then use
the fine knob to focus. At this moment, you can
replace other magnification objectives safely, and
focus without the risk of destroying the specimen.
When using the video set
Pull out the light path selector lever ①, observe
with both eyes, when the image is sharp, you can
see the pictures directly on the video screen which
connected by the microphotograph system
through the video mount.
If you need to fix the stage on a vertical
position to make the observation become more
convenience, take use of the locking set ②.
Fig. 22
Fig. 23

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STEINDORFF®
3.8. Using the ND Filter Knob
1. The ND Filter is interlocked with brightfield (BF)
light path switching so it can be engaged or
disengaged according to the mirror selector lever
①.The ND filter makes it possible to reduce the
glare when darkfield (DF) is switch to brightfield
(BF).
Releasing interlocking
1. The ND filter knob has been interlocked at the
factory. If brightness is not enough during
brightfield, DIC or other observation, the
interlocking can be released.
1. Loosen the screw interlocking the ND filter by
inserting the Allen screwdriver into hole ②on the
left side of the reflected light illuminator.
2. Now the interlocking is released and the ND filter
knob (Fig. 17) is active. Pull the lever out to
disengage the ND filter from the light path.
3.9. Using the Filters
2. Engage the optimum filter sliders for the purpose
of observation in the two filter insertion slots ④.
Be sure to engage from the left side.
3. The first click position is the idle position and the
second click engages the filter in the light path.
Usable Filters
Applications
Color temperature
conversion filter
Turns the illumination light into daylight. Used in general observations and color
photography.
Green filter
Enhanced contrast in monochrome observation. Used in monochrome photography
Yellow filter
Contrast filter for observation of semiconductor wafers
Frost filter
Reduces irregularity in the illumination field, but also reduces the brightness
ND25
Adjusts the brightness of the light source. (Transmittance: 25%)
ND6
Adjusts the brightness of the light source. (Transmittance: 6%
Fig. 24
Fig. 26
Fig. 25

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STEINDORFF®
3.10.Selecting the Light Path of the trinocular Tube
1. Slide the mirror selector lever ①toward the
indication of the mirror for the desired observation
method.
BF: Reflected light brightfield observation
DF: Reflected light darkfield observation
oBe sure to slide the mirror selector lever until it
contacts the stopper.
3.11.Using the Filters
1. Slide the mirror selector lever ①to “BF”.
2. Engage the 10X objective by rotating the revolving
nosepiece, place the specimen on the stage and
adjust approximate focusing.
3. Pull out the FS knob ④on the reflected light
illuminator to reduce the aperture iris diaphragm a
little.
4. Rotate the two FS centering screws ②using the
Allen screwdriver to adjust so that the field iris
image becomes concentric with the field of view.
5. While pushing in the FS knob ④, open the field
iris diaphragm until the field iris image inscribes
the field of view. If the image is found to be
eccentric, adjust the centering again.
6. Open the field iris so that its image is almost the
same size as (Fig. 28 subscribes) the field of view.
Using the Field Iris Diaphragm
In reflected light brightfield observation
The field iris diaphragm adjusts the illuminated area to obtain an image with high contrast. According to
the objective in use, adjust the FS knob ④of the reflected light illuminator until the iris image
circumscribes the field of view to block unnecessary light.
In reflected light darkfield observation
The field iris diaphragm must be opened by pushing in the FS knob.
Fig. 27
Fig. 28
Field iris diaphragm image
Field of view of eyepiece

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STEINDORFF®
3.12.Centering the Aperture Iris Diaphragm (AS)
1. Slide the mirror selector lever to “BF”.
2. Engage the 10X objective by rotating the revolving
nosepiece, place the specimen on the stage and adjust
approximate focusing.
3. Remove the eyepiece, look into the eyepiece sleeve and
pull the AS knob⑤, so that the aperture is about 70%.
4. If the center of the iris diaphragm is deviated, center it
by rotating the two AS centering screws (③in Fig. 27)
using the Allen screwdriver.
Using the Aperture Iris Diaphragm
In reflected light brightfield observation, optimum
observation is generally possible by setting the aperture
to between 70% and 80% of the aperture number of the
objective (figure 29).
In reflected light darkfield observation, the aperture must
be fully opened by pushing in the AS knob.
oWith some specimens, an image with high contrast and
little flare may sometimes be obtained when the aperture
is slightly closed. It is therefore recommended to also try
a slightly closed aperture.
3.13.Setting the Analyzer and Polarizer
1. Insert the polarizer (Fig. 30) into the polarizer insertion
Slot ③with the surface printing with silk screen towards
you, then push the polarizer into the light path.
2. Remove the cover, then put the analyzer (Fig.30 in the
insertion slot (②in Fig.31).
3. Rotate the analyzer rotating dial ①to find the position
where the field of view is darkest.
4. When the analyzer and polarizer are coupled by using
the coupling plate | provided with the polarizer and
tightening the clamping knobs on it, the analyzer and
polarizer can be engaged or disengaged in the light path
together (Fig.31).
Fig. 29
The image of aperture iris diaphragm
Polarizer
Analyzer
Coupling plate
Fig. 30
Fig. 31

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STEINDORFF®
3.14.Adjusting the Swing out Condenser (Fig. 32)
The center of the condenser and the light axes of the
objective are coaxial. It has been adjusted before leaving
factory, so the user needn’t to adjust them by self.
The highest position of the condenser has been adjusted too.
It also needn’t any user’s operation. Turn the condenser focus
knob to shift the condenser. It needs to raise the condenser
when using the high magnification objective, and to decline
when using the low magnification one.
1. Using the Swing out Condenser
When using the low magnification objective, turn
out the condenser, and let it away from the light
path. While using the high magnification objective,
turn it into the light path.
2. Adjusting the Aperture Diaphragm
The aperture diaphragm is designed for the
adjustment of the numerical aperture, not for the
brightness. Generally, reducing the diaphragm
opening to 70- 80% of the N.A. value of the
respective objective will provide an image of
acceptable quality. If you want to observe the image
of the aperture diaphragm, remove one eyepiece and
look through the tube. You will see a dark circle
encroaching on the bottom of the tube.
3.15.Adjusting the Field Diaphragm (Fig. 33)
The control for the field diaphragm is a ring used for adjusting the area of field diaphragm. When using, turn the
ring to reduce the field diaphragm, look into the field, if the diaphragm image is faintness, do the follow steps: first,
turn the condenser focus knob, shift the condenser holder to the position where the observed image of the field of
view is sharp; then open the field diaphragm, let the image full of the field of view, reduce the mixed light,
improving the quality of the image.
Fig. 32
Fig. 33

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STEINDORFF®
－－－－－－－－－－Main switch (P. 10)
－－－－－ ND filter knob (P. 13)
－－－－－－－－－－ Light path selector knob (P. 14)
－－－－－－－－－－ Stage plate (P. 11)
－－－－－－－－－－ Revolving nosepiece
－－－－－－－－－－ Coarse/fine adjustment knobs (P. 12)
－－－ Brightness adjustment knob (P. 10)
－－－ Brightness adjustment knob (P. 11)
Diopter adjustment ring (P. 11)
－－－－－－－－－－ AS knob (P. 15)
FS knob (P. 14)
－－－－－－－－－－ Revolving nosepiece
Coarse/fine adjustment knobs
－－－ Filter insertion slot (P. 13)
－－－ Brightness adjustment knob (P. 10)
4.1. Reflected Light Brightfield/Darkfield Observation
oThe following chart shows the operating procedure for reflected light BF or DF observation.
Select the brightfield (BF) or darkfield (DF) observation. －－－－－ Mirror selector lever (P. 14)
4. OBSERVATION METHODS
Set the main switch to “I” (ON).
Disengage the analyzer, polarizer, filter, etc. from the light path.
Check interlocking of the ND filter
Select the light path
Place the specimen on the stage.
Engage the 10X objective in the light path.
Bring the specimen in focus.
Adjust the brightness.
Adjust the interpupillary distance.
Adjust the diopter.
Adjust the aperture iris diaphragm and
field iris diaphragm.
oOpen both iris diaphragms in
case of DF observation.
Engage the desired objective in the light
path and bring the specimen in focus.
Insert the required filters
Adjust the brightness.
Start observation.

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STEINDORFF®
4.2. Reflected Light Simplified Polarized Light Observation
1. Setting the Analyzer and Polarizer (Fig. 15).
2. Place the specimen on the stage and adjust the focus by moving the stage up or down. Now simplified
polarized light observation can be started.
3. Adjust the field iris diaphragm so that its image circumscribes the field of view.
4. The contrast may sometimes be enhanced by closing the aperture iris diaphragm slightly.
4.3. Transmitted Light Observation
1. Installing the lamp housing. (See page 8: Installing the lamp housing when using transmitted light
illuminator).
2. Installing objective.
3. Installing the swing out condenser.
4. Set the main switch to “Ⅱ” (ON).
5. Fix the specimen on the stage, adjust the focus to begin observation.
oAt the Transmitted Light Observation, the method of condenser, field iris diagram adjusting please refer to
section 3.14 and 3.15.

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STEINDORFF®
Optical system
Infinite Optical System
●
Eyepiece (Ocular)
Exceed wide field ocular EW10X/22, tubeΦ30 matched
●
Infinite plan
achromatic
5×/0.12/∞/-(BF)
●
10×/0.25/∞/-(BF/DF)
●
20×/0.4/∞/0(BF/DF)
●
50×/0.75/∞/0(BF)
●
100×/0.9/∞/0(BF)
●
40×/0.65/∞/0.17
●
100×/1.25/∞/0.17
●
40×/0.6/∞/0(BF/DF)
○
50×/0.75/∞/0(BF/DF)
○
Upper limit
30mm
●
Viewing head
Compensation Free Trinocular Head, Inclined at 30°,
Interpupillary distance: 48-75mm
●
Reflected light
illumination
24V, 100 W halogen bulb (pre-centered)
●
Koehler Illumination, Aspheric collector
●
Polarizer and analyzer
○
coupling plate
○
Blue, green, yellow filter and frosted glass
●
Transmitted light
illumination,
Swing out condenser NA0.9/0.25
●
24V/100W halogen bulb, Aspheric collector
●
Blue filter
●
Filter
ND25, ND6
○
Focus system
Coaxial Coarse and Fine Focusing System, Sensitivity and
Graduation of Fine Focus: 0.001mm, tension adjustment on
coarse focus adjustment knob. Upper limit stopper.
●
Nosepiece
Backward Quintuple Nosepiece
●
Stage
Double layer mechanical stage, area: 186×138mm, movement
range: 74mm×50mm
●
sample board
●
Slide
●
Smoothing presses
○
Video accessories
○
Video Mount
C Mount 1×, 0.5×
○
Note: ● Standard outfit，○ Optional
5. SPECIFICATIONS

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STEINDORFF®
6.1. Optical Parts
PROBLEM
REASON FOR PROBLEM
SOLUTION
Bulb lights but the
field of view is
dark.
The aperture or field iris diaphragm
is closed.
Open the aperture and field iris
diaphragms.
Analyzer and polarizer are engaged
in light path.
Disengage them from light path.
Light path selector knob of
trinocular tube is positioned halfway
Fully pull out the light path selector
knob.
Mirror selector lever is in an
intermediate position
Set the knob correctly.
Field of view is
obscured or not
evenly illuminated
Light path selector knob of
trinocular tube is positioned halfway
Set the light path selector knob to a click
position according to the purpose.
Mirror selector lever is in an
intermediate position.
Set the knob correctly.
Revolving nosepiece is not in a
click position.
Set it in a click position.
Field iris diaphragm is not
centered.
Center the field iris diaphragm correctly
and open it sufficiently.
ND filter is not in a click position.
Set it in a click position.
Lamp bulb is not installed
correctly.
Push halogen bulb terminals all the way
into stop position.
Analyzer and/or polarizer not
installed correctly
Engage analyzer and polarizer in light
path.
Dirt or dust is
visible in the field
of view.
Dirt/dust on eyepiece
Clean thoroughly.
Dirt/dust on specimen
The image is
defocus\low
resolution
Revolving nosepiece is not in a
click position.
Set it in a click position.
The surface of the objective lens is
moldy or has contaminant
Clean thoroughly.
Dirt/dust on specimen
One side of image
is blurred.
Objective is not correctly engaged
in light path.
Make sure that revolving nosepiece
clicks into place correctly.
6. TROUBLESHOOTING