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GETTING STARTED
• LED-lamp illumination: turn the brightness control dial forward to achieve the desired
brightness.
• Specimen mounting: mounting with the cover glass facing upwards.
• Focusing with 10X objectives: choose the objective 4X or 10X. Turn the coarse focusing
knob to get the objective focused on the slide and then turn the fine focus adjustment
knob to get the image sharp and clear.
• Interpupillary distance adjustment: adjust the interpupillary distance of binocular until
the right-left field of view can be composed one.
• Eyepiece diopter adjustment: firstly, observe at right tube with right eye, adjust
coarse-fine focusing knob to image clearly. Secondly, observe at left tube with left eye,
adjust the diopter control 1 to image clearly.
• Objective selection: rotate the revolving nosepiece to the desired objective
magnification, assuring it click-stops into position.
• Aperture diaphragm adjustment: this diaphragm is designed for numerical aperture
adjustment, not brightness. Generally, a good image of sufficient contrast can be
achieved with the aperture diaphragm stopped down to approximately 70-80% of the
objective's numerical aperture. To observe the diaphragm image, remove the eyepiece
and look down the open tube at the exit pupil of the objective.
• Field diaphragm adjustment: for the field lens unit with field diaphragm; stop down the
field diaphragm until the illuminated area closely circumscribes the eyepiece viewfield.
The field diaphragm is used to control the specimen's illuminated area relative to the
microscope viewfield. If it is opened to a larger aperture than necessary, extraneous light
will enter the viewfield, reducing image quality and contrast.
POWER OPTIONS
1. Main power cable (100~230V/50Hz), available for EU (item no. 76995), UK (item no.
76999), CH (item no. 76998) and USA (item no. 76996).
2. Rechargeable batteries (AA, 1,5V), optional item, can be ordered as a pack of three
(item no. 29554). When this battery pack is placed, it will be charged automatically when
the microscope is connected to the mains and the power switch of the microscope is
switched on. When the LED indicator, located on the back of the microscope, is green,
the battery pack is fully charged. The microscope can now be used, disconnected from
the mains, for 10 hours. When the LED indicator is red, the batteries need to be charged
again. Charging time is about 3 hours.
3. Non rechargeable batteries (AA 1,5V, 3 pieces). The microscope will also work with
these batteries. WARNING: do not connect the microscope to the main electricity when
these batteries are placed. This will cause severe damage to the microscope.
DOUBLE SAFETY IS GUARANTEED
• Full separation from the main power through DPDT* switch.
• Indicator LED to show if main power is switched on and if optional battery is charged
• Potentiometer for regulation of the High Power LED
• High Power LED for bright image
*DPDT (double pole, double throw) when switched off, the power is completely shut off.
The BMS D2 and D3 microscopes have a LED illumination light source. This light source
is characterized by low maintenance and low power consumption. This LED source has
an average life span of 50,000 hours. Besides that, this LED illumination system lacks
heat development and is therefore safe to use by children. It is recommended though
that an adult is supervising at all time.
SAFETY INFORMATION
• Always disconnect mains plug from power point before maintenance
• Work in a clean and proper environment
• Think of the safety of yourself and those working around you
• Clean all parts coming in contact with the observed specimen to prevent infection
• Place the microscope on a sturdy, level table or working surface
• Always use original accessories
CAUTION
The delicate components may get damaged if the microscope is not handled with care.
Use the microscope in a clean environment. Do not use it when it is subject to direct
sunlight, high temperatures, humidity or dust. Carry the microscope with care, do not
hold it by the stage. Remove specimen before transport.
REPLACING FUSE
Always disconnect mains plug from power point before any kind of maintenance. The
BMS D2 and D3 microscopes are equipped with one glass fuse, 1,0 A.
• Wait until the microscope and electrical parts have cooled down.
• The fuse is located on the bottom of the microscope
• Open the housing of the fuse by turning it counter clockwise.
• Take broken fuse out.
• Replace new fuse after being sure of using same rating in new fuse.
• Screw fuse holder clockwise back in place.
CARE & MAINTENANCE
• Please use our special microscope maintenance kit (item no. 76026).
• Always keep the optical parts clean. Please use the dust cover to protect it.
• Avoid contamination of the objectives.
• In case there is dirt on the lens surface, use distilled water to moist and soft cloth to
clean the lens surface. Be very careful and make sure to avoid scratches on a lens
surface. Cleaning can also be done by using an alcohol solution or an optical cleaning
solution. Ventilate the room. Do not soak the lens in (cleaning) liquid.
• To clean the eyepiece- and objective-lens surface, move the cloth in a spiral motion
from the center to the rim.
• Never make a zig-zag movement since this will only spread the dirt.
• To clean painted parts, use also a slightly moistened soft cloth.
• Never use an organic solvent. Use a mild detergent, like soft hand soap.
• Do not remove the objectives from the nosepiece. The objectives were placed in a
particular sequence and are adjusted in order to have a parcentered optical system.
• Never dismantle the microscope. This can only be done by factory and/or dealer
authorized staff.
SPECIFICATIONS
For more specifications, please view the product page on the website:
www.bmsmicroscopes.com
It is within our company policy to develop continuously. BMS Microscopes b.v. reserves
the right to change design and specifications without further notice.
BMS Microscopes b.v.
Essebaan 50
2908 LK Capelle aan den IJssel
The Netherlands
Tel.: +31(0)10 458 42 22
E-mail: sales@bmsmicroscopes.com
Environment protection first!
Your appliance contains valuable materials which can be recovered
or recycled. Leave it at a local civic waste collection point.
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