3B Scientific Stereo Mikroscope 40x User Manual

3B SCIENTIFIC® PHYSICS

Stereo Microscope, 40x, Rotatable Head

115 V, 50/60 Hz: 1005440 / 230 V, 50/60 Hz: 1005441

Instruction Manual

07/13 ALF

1 Eyepiece with eye-shields
2 Tube
3 Lock-screw
4 Adjustment knob for focusing
5 Top-light housing
6 Pillar
7 Rotary switch for illumination
8 Specimen clips
9 Stand
10 Object plate
11 Mains switch
12 Objective
13 Head lock screw

1. Safety notes

• For power supply use only electrical sockets

with ground contact.

Caution! The Stirling engine becomes hot during
use. Risk of burns!

• Do not touch the lamp during or immediately

after use.

2. Description, technical data

The stereo microscope allows three-dimensional
viewing of objects in 20x and 40x magnification.

The microscope 1005440 is for operation with a
mains voltage of 115 V (±10%), and the
1005441 unit is for operation with 230 V (±10%).

Stand: Metal stand, column firmly connected
with base, pinion knobs attached on both sides
of the stand for coarse and fine focusing

Tube: Binocular inclined 45°, interocular dis­tance adjustable between 55 and 75 mm, head
rotatable by 360°

Eyepieces: Pair of wide field eyepieces WF 10x
20 mm with eyepiece lock and rubber eyepiece
cups, diopter compensation ±5 on the left eyepiece

Objectives: Revolving nosepiece with objective
2x / 4x

Enlargement: 20x / 40x
Object Plate: Base with detachable object

plates (plastic, black/white and glass) 95 mm
diam. and 2 specimen clips

Illumination: Top, transmitted and mixed-light
illumination, 12 V, 10 W lamp, rotary switch to
select light combination

Power supply: 1005440: 115 V, 50/60 Hz
1005441: 230 V, 50/60 Hz

Dimensions: 190 x 300 x 115 mm³ approx.
Weight: 2.9 kg approx.

1

3. Unpacking and assembly

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The microscope is packed in a molded styro­foam container.

• Take the container out of the carton remove

the tape and carefully lift the top half off the
container. Be careful not to let the optical
items (objectives and eyepieces) drop down.

• To avoid condensation on the optical compo-

nents, leave the microscope in the original pack­ing to allow it to adjust to room temperature.

• Using both hands (one around the pillar and

one around the base), lift the microscope
from the container and put it on a stable desk.

The microscope is fully assembled except for the
eye-shields. Position them over the eyepieces for
viewing comfort and to block out any ambient
light. In addition, the object plate must be inserted
into the stage opening in the base.

4. Operation

4.1 General information

• Set the microscope on a level table.

• Place the object to be observed in the center

of the object plate. Use the clips to fasten it
into place.

• Connect the mains cable to the net and turn

on the switch to get the object illuminated.

• When using transmitted- or mixed-light illu-

mination replace black and white plate with
the glass plate.

• Turn the objective to get the desired magnif ication.

• On the rotary switch position I is for transmit-

tedlight, position II is for top-light and posi­tion III is for mixed-light.

• Adjust the interpupillary distance between

the eyepieces by grasping the two prism­housings with both hands and moving them
until one circle of light can be seen.

• Focus the object by turning the side knobs.

• It might be necessary to loosen the lock-

screw and raise or lower the entire stereo
head-bracket until the outline of the object is
found in the field of view. Be sure to tighten
the lock-screw to fix the height of the stereo
head on the pillar.

• To rotate the microscope head, loosen the

head lock screw.

• Always turn off the light immediately aft er use.

• Be careful not to spill any liquids on the mi-

croscope.

• Do not mishandle or impose unnecessary

force on the microscope.

• Do not wipe the optics with your hands.

• Do not attempt to service the microscope yourself.

4.2 Changing the lamp

• Turn off the power switch, unplug the mains

plug and let the lamp cool down.

• To change the lamp of the top light loosen

the lock-screw for the lamp-housing and re­move the lamp screen.

• Remove the lamp and insert a new one.

• Remount the lamp screen.

• To change the lamp of bottom light remove

the cover from the base opening.

• Change the lamp in a similar way as de-

scribed above.

• Remount the cover.

4.3 Changing the fuse

• Turn off the power switch and unplug the

mains plug.

• Unscrew the fuse holder on the back of the

stand base with a screwdriver.

• Replace the fuse and reinsert the holder in

its socket.

5. Storage, cleaning, disposal

• Keep the microscope in a clean, dry and

dust free place.

• When not in use always cover the micro-

scope with the dust cover.

• Do not expose it to temperatures below 0°C

and above 40°C and a max. relative humid­ity of over 85%.

• Always unplug the mains plug before clean-

ing or maintenance.

• Do not clean the unit with volatile solvents or

abrasive cleaners.

• Do not disassemble objective or eyepieces

to attempt to clean them.

• Use a soft linen cloth and some ethanol to

clean the microscope.

• Use a soft lens tissue to clean the optics.

• The packaging should be disposed of at

local recycling points.

• Should you need to dis

pose of the equipment it­self, never throw it awa
in normal domesti
waste. Local regulations
for the disposal of electri­cal equipment will apply.

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com

Subject to technical amendments

© Copyright 2013 3B Scientific GmbH