Components; Features And Technologic Specifications; Main Specifications - Bresser ETD-101 Bedienungsanleitung

The "BRESSER Science ETD-101" is a stereomicroscope,
which can magnify microobjects continually and show stereo
up-right images. It provides a clear high-contrast image, wide
field and long working distance. It can be used for observation
studies in medical and health, farming and forestry, as well as
in public security departments, schools and scientific research
I. COMPONENTs
B
Eyepiece shade
C
Eyepiece
D
Diopter ring
E
Eyepiece tube
F
Microscope head
g
Incident illumination power supply plug
h
Zoom knob
i
Objective hood
j
Holding knob
1)
Focus adjustment knob
1!
Backstop
1@
Power supply plug and socket
1#
Mains adaptor
1$
Incident light brightness adjustment knob
1%
Specimen clip
1^
Stage / Object plate
1&
Transmitted light brightness adjustment knob
1*
Holding screw of tube
1(
Lamp cover of incident illumination
2)
Incident light angle adjustment screw
2!
Power switch
Eyepiece type
Wide field eyepiece (WF)
Plan eyepiece
Plan eyepiece
Plan eyepiece
Dividing eyepiece
Eyepiece:
Mainframe:
Accessorial objective (optional parts):
0.5x
0.75x
1.5x
2x
Eyepiece:
Mainframe:
Accessorial objective (optional parts):
0.5x
0.75x
1.5x
2x
III. MaIN sPECIfICaTIONs
Parameters of eyepieces
Magnification
10x
15x
20x
25x
10x
Different specifications and parameters of eyepieces and objectives
WF10x
Total Range of field
magnification Ø / mm
7x - 45x 28.6 - 4.4
3.5x - 22.5x 57.2 - 8.9
5.3x - 33.8x 38.1 - 5.9
10.5x - 67.5x 19 - 2.96
14x - 90x 14.3 - 2.2
Plano 20x
Total Range of field
magnification Ø / mm
14x - 90x 17.1 - 2.6
7x - 45x 34.3 - 5.3
10.5x - 67.5x 22.9 - 3.6
21x - 135x 11.4 - 1.8
28x - 180x 8.6 - 1.3
institutes, and it is also used for inspection, assembling and
repair of tiny spare parts in electronics and precision machine
industries.
II. fEaTuREs aND TEChNOlOGIC sPECIfICaTIONs
1. Objective's range of zoom magnification: 0.7x - 4.5x.
2. Eyepiece's field is wide and clear. Field size: Ø = 20 mm.
3. The binocular eyepiece tubes are inclined 45° and can be
rotated 360°.
4. Adjustment range of interpupillar distance:
53 mm - 75mm.
5. Diopter adjustment range at the eyepiece tubes:
–5 dpt - +5 dpt.
6. Anti-mildew device is installed to extend the lifetime of the
instrument.
7. The current mains adaptor is out of the base of instrument.
8. The modes of illumination selection and brightness adju-
sting are very easy. There are three modes: transmitted
light, reflected (incident) light and mixed light illumination.
.
Field of view Ø / mm
20
15
12
9
18
Plano 15x
Total
magnification
10.5x - 67.5x
5.3x - 33.75x
7.9x - 50.6x
15.8x - 101.3x
21x - 135x
Plano 25x
Total
magnification
17.5x - 105x
8.8x - 56.3x
13.1x - 84.4x
26.3x - 168.8x
35x - 225x
8
Focal length ƒ / mm
25
16.7
12.5
10
25
Range of field
Ø / mm
21.4 - 3.3
42.9 - 6.7
28.6 - 4.4
14.3 - 2.2
10.7 - 1.7
Range of field
Ø / mm
12.9 - 2.1
25.7 - 4
17.1 - 2.7
8.6 - 1.3
6.4 - 1
Remarks
optional
optional
optional
optional
Working distance
WD /mm
90
137
103
48
29
Working distance
WD /mm
90
137
103
48
29