Bresser Science TRM-301 Mode D'emploi page 8

To work with this microscope, sharp and pointed aids are being used. Please take care that this microscope
and its accessories are stored out of the reach of children. Let children only work with this microscope under an
adult's supervision! Keep packing material (plastic bags etc.) away from children!
Table of Contents
I. Components
II. Technical Data / Included with Your Purchase
III. Observing Operation
IV. The Operations of Each Unit
V. Maintenance, EEC Conformity Explanation, Warranty
I. COMPONENTS
Fig. 1
B
Nosepiece
C
Condenser up-down knob
D
Knob for tensional adjustment of focusing
E
Coarse focusing knob
F
Fine focusing knob
g
Power switch
h
Brightness control knob
i
Auxiliary lens of condenser
j
Condenser holding screw
1)
Condenser centering screw
1!
Stage
1@
Objective
Eyepiece type
Wide field eyepiece (WF)
WF eyepiece with crosshair
Objective type
Planachromatic
objective
Objective:
Eyepiece:
10x
• Condenser: Numerical aperture NA = 1.25.
• Stage: Travel range is longitudinal 50 mm,
traverse 75 mm.
• Fine focusing knob: Minimum division 0.002 mm.
• Interpupillary distance adjustment range: 53-75 mm.
• Light sources: 6 V, 20 W halogen lamp with brightness
adjustment.
• Anti-fungus: Yes.
CAUTION!!
II. TECHNICAL DATA / INCLUDED WITH YOUR PURCHASE
Magnification
10x
10x
Magnification
4x
10x
40x
100x
Total magnification
4x
40x
Fig. 2
B
Eyepiece
C
Specimen holder
D
Condenser (with aperture diaphragm)
E
Field diaphragm and filter seat
F
Limit knob (up stop)
g
Fine focusing knob
h
Power supply
i
Fuse holder
j
Transversal adjustment knob
1)
Longitudinal adjustment knob
1!
Tube holding screw
1@
Trinocular head
Fig. 3
B
Tube holding screw
C
Trinocular head
D
Eyepiece
E
Nosepiece
F
Objective
g
Condenser centering screw
h
Condenser holding screw
i
Condenser (with aperture diaphragm)
Eyepieces
Field of view
diameter / mm
20
Objectives
Numerical aperture
NA
0.1
0.25
0.65
1.25 (oil)
10x
Total magnification
100x
• Filters: Transparent and blue.
• Spare halogen lamp (6 V, 20 W)
• Spare fuse (250 V, 0,5 A, F)
• Dust proof cover
• Power cord
• Instruction manual
8
Focal length
ƒ / mm
25
Working distance
WD / mm
17.9
0.56
0.33
40x
400x
Remarks
optional
8.8
100x (oil)
1000x