HOZAN L-576-20 User manual

Specifications
*2 When eye cups (short) attached
Objectives L-546-10
WF10X, Field number:20
Weight 175g *2
L-546-20
WF10X, Field number:10
235g *2
Identification of parts and contents
１
L-546-10
Thank you for purchasing the HOZAN L-546-10 EYEPIECES (10X) / L-576-20 EYEPIECES
(20X) . With proper care and handling, this fine instrument will provide years of trouble-free
operation. Please read this entire instruction manual carefully before attempting to place
this instrument in service. Please keep this instruction manual available for reference.
INSTRUCTION MANUAL
Eye cups (long)
Accessories
L-546-20
Units: mm
61 *1
φ30
57 *1
φ30
*1 When eye cups (short) attached,
graduation “0” adjusted to setting dot.
Eye cup (short)
L-546-10
Eye cup (short)
L-546-20

Precautions
1. Do not disassemble or modify the eyepieces yourself, otherwise this could
cause a malfunction.
2. Protect the unit against physical shock or vibration during transport. Otherwise, this
could cause a malfunction.
3. Do not expose the unit to prolonged direct sunlight, high temperature, high humidity,
or dust. Such exposure could cause a malfunction.
 Caution
These symbols are used throughout the instruction manual to alert the user to potential
safety hazards as follows :
Warning …Notice when incorrect handling could cause the user's death or serious
injury.
Caution …Notice when incorrect handling could cause injury to the user or material
damage.
Even if the instructions do not have Caution mark, there are some possibilities for a
serious situation. Follow the instructions.
Warning and caution symbols
Preparation
First, make sure that the contents are complete.
Prepare the L-46 MICROSCOPE or the L-461
STEREO HEAD SCOPE.
Remove the caps from the barrels. Then, loosen
the eyepiece set screws and insert the eyepiec-
es into the barrels.
Drive the eyepiece set screws gently so that the
eyepieces stay and the setting dot [・] of them,
refer to the photo, point at the zenith.
Please use eyecups (long) if necessary.
< How to attach the eyecup (long) >
1. Remove the eyecup (short) .
2. Attach the eyecup (long) as sown
in the illustration.
Choose to suit
Eyecup (short)
・for persons in spectacles
Eyecup (long)
・for persons in contact lenses or without spectacles
Bringing inspector’s cheekbones at eyecups (long) stables his/her eye
points.
・for blocking the slanting rays
Engage the
projection with
the groove.
Eyepiece
Eyecup (long)
Setting dot
Eyepiece
Eyecup (short)
Eyepiece set screw
* Please refer to each instruction manual for operation of the L-46 and the L-461.
２
１

３
１ Be agreed “0” of the graduation with each setting dot,
refer to the photo, of both the eyepieces.
Operation
Setting dot
６
４ Adjust the zoom adjust knob to 4.5
maximum magnification.
Adjust the zoom adjust knob to 0.7.
５ Adjust for proper focus with the focus
knob while looking with both eyes.
If the focus knob does not focus
enough, move the holder up and
down under loosening the holder set
knob.
４.５
０.７
Holder set knob
Focus knob
Zoom adjust
knob
Loosen the holder set knob while supporting the holder with one hand when move it
up and down. Otherwise, the holder could fall down suddenly damaging the unit, the
object and the operator.
 Caution
Adapt the eyepiece distance with your pupil distance to
view a single circle of the field.
The stereo barrels will rotate drawing arcs interlocking
with (refer to the photo).
２
Place an object just under the objectives.
Prepare lighting apparatus such as Hozan’s L-711 LED
LIGHT if necessary.
３
Always aim the same point if the sur-
face of the object is not simply flat,
otherwise the working distance* could
differ from before and this could not
come into focus.
*Working distance means the dimen-
sion from the top of lens filter to the
object.

1-2-12 Saiwaicho, Naniwa-ku, Osaka 556-0021, Japan
Tel : [phone] F ax : [phone]
Note
Do not allow any dust or fingerprints to get on the lens to get clear images.
●
17.11
７ If the image is out of focus, it is due to the difference of right and left eyesight.
First, turn the draw tube for proper focus by looking with the dominant eye while
closing the other eye.
Then, adjust the other eyepiece similarly.
Proceed to procedure 8if the image looking with both eyes is in focus.
If the image is still not in focus, adjust each eyepiece again.
Regarding “-” “+” of the graduation
A nearsighted person should turn to minus side and a farsighted person should turn
to plus side.
Treat procedures 4to 7and check if the image is in focus.
Repeat these procedures so that a clear image can be obtained whenever the zoom
magnification is changed.
８
Operation
９ Store the L-46 putting the dust sheet on after use.
Taking notes of sight adjust value can omit procedure 7when the next work.
Magnification table
Objective 0.7-4.5X
Field of
view
mmφ
Working
distance
mm
57.1-
8.9
Magni-
fication
X
3.5-
22.5
7-
45
28.5-
4.4
No L-57-0.5 L-57-1.5
L-546-10
(Standard)
Eyepiece
L-546-20
Field of
view
mmφ
84
Working
distance
mm
28.5-
4.4
Magni-
fication
X
7-
45
14-
90
14.3-
2.2
L-57-2
160
Field of
view
mmφ
Working
distance
mm
19.0-
2.9
Magni-
fication
X
10.5-
67.5
21-
135
9.5-
1.5
43
Field of
view
mmφ
Working
distance
mm
14.3-
2.2
Magni-
fication
X
14-
90
28-
180
7.1-
1.1
26
Daily care
Lenses
＊ Alcohol is extremely flammable, so handle it with care.
Wipe away any dust gently with a soft cloth or a piece of gauze.
Clean away fingerprints or oil stains with a cloth which is lightly soaked in IPA or
denatured alcohol (such as ethyl alcohol or methyl alcohol).
●
●