Parts Overview - Bresser National Geographic Mode D'emploi

Operating instructions

Parts overview:

B 10X WF eyepiece
16X WF eyepiece
C
Barlow lens 2X
D
Eyepiece holder
E
F Microscope head
Objective revolver
G
Microscope stage
H
Focus wheel
I
J LED lighting (transmitted light)
Electricity supply
1)
Microscope base
1!
Main plug
1@
1# 5 slides, 10 covering glasses and 5 preparations in a plastic box
Matted lens
1$
Condenser lens
1%
Dimmer
1^
Colour filter disc
1&
1* LED lighting (reflected light)
Direct light/transmitted light switch
1(
Microscope tools: a) pipette; b) tweezers
2)
Hatchery
2!
2@ MicroCut
Specimens: a) yeast; b) gum media (specimen inclusion medium); c) sea
2#
salt; d) brine shrimp eggs
Locking screw
2$
Smartphone holder
2%
1. General/Location
Make sure you position your microscope on a stable, solid surface.
An electricity supply is required for observation with the electric illuminator.
Position your device so that it can be disconnected from the power supply at any time.
The wall you use socket should be located near the device and easily accessible, since
the plug on the power cord serves as a disconnecting device for the power supply.
Always pull on the plug to separate the device from the power supply. Never pull on
the cord.
2. Electric LED lighting with dimmer
Before use, make sure the light switch (19) is set to 'off'.
The microscope has two light sources. Lighting can be of three types. Set the switch
(19) to 'II' to light the specimen from above (reflected light) or 'I' to light it from below
(transmitted light). Use setting 'III' to light the specimen simultaneously by transmitted
and reflected light. The transmitted light unit (9) is used for transparent specimens
(those on glass slides). To view solid, non-transparent specimens, use the reflected
light unit (18). Use of both forms of lighting simultaneously is only recommended for
semitransparent specimens. This operating mode is not recommended for transmit-
ted light specimens on slides as it may cause reflection on the slide.
To operate the supplied main power pack (12), first connect it to the microscope and
then to a power socket (220-230V). Use the switch (19) to select the desired lighting
mode and set the dimmer (16) to the desired brightness.
As your device has continuously controllable lighting (dimmer), optimal illumination of
the object to be viewed is guaranteed.
3. Colour filter disc
The colour filter (17) under the microscope table (7) aids in viewing very bright and
transparent objects. Just select the right colour for the specimen in question. The
components of colourless or transparent objects (e.g. starch particles, single-cell
specimens) can thus be better recognised.
EN
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