Standard 25 ICS
Transmitted Light
Microscope
Operating Manual
Standard 25 ICS
Knowledge of this manual is required for the operation of the instrument. Would you therefore please make yourself familiar with the contents of this manual and pay special attention to hints concerning the safe operation of the instrument.
The specifications are subject to change; the manual is not covered by an update service.
©Unless expressly authorized, forwarding and duplication of this document, and the utilization and communication of its contents are not permitted. Violations will entail an obligation to pay compensation.
All rights reserved in the event of granting of patents or registration of a utility model.
Issued by: |
Carl Zeiss |
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Mikroskopie |
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D-07740 Jena |
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Telephone: (**49) 03641 |
/ 64-1616 |
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Telefax: |
(**49) 03641 |
/ 64-3144 |
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Internet: |
mikro@zeiss.de |
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http://www.zeiss.de |
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Number of this manual: B 40-029 e
Date of issue: 01/98
II |
B 40-029 e 01/98 |
Standard 25 ICS
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CONTENTS |
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Page |
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INTRODUCTION........................................................................................................................ |
I |
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Title page ................................................................................................................................... |
I |
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Copyright.................................................................................................................................. |
II |
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Contents ................................................................................................................................... |
III |
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Notes on instrument safety ....................................................................................................... |
IV |
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Warranty notes ........................................................................................................................ |
VI |
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Overall view ............................................................................................................................ |
VII |
1 |
DESCRIPTION........................................................................................................................ |
1-3 |
1.1 |
Name and intended application .............................................................................................. |
1-3 |
1.2 |
Instrument description and main features................................................................................ |
1-3 |
1.3 |
Microscope configurations and modules ................................................................................. |
1-4 |
1.4 |
Objectives .............................................................................................................................. |
1-6 |
1.5 |
Eyepieces ............................................................................................................................... |
1-7 |
1.6 |
Stage micrometers and eyepiece reticles ................................................................................. |
1-8 |
1.7 |
Technical Data...................................................................................................................... |
1-10 |
2 |
START-UP ............................................................................................................................. |
2-3 |
2.1 |
Unpacking the instrument ...................................................................................................... |
2-3 |
2.2 |
Attachment of binocular tube 45°/20 ICS or binocular phototube 35°/20 ICS........................... |
2-3 |
2.3 |
Screwing-in of objectives ........................................................................................................ |
2-3 |
2. |
Insertion of eyepieces ............................................................................................................. |
2-4 |
2.4.1 Insertion of eyepiece reticle..................................................................................................... |
2-4 |
|
2.4.2 |
Compensation of ametropia when eyepiece reticles are used .................................................. |
2-5 |
2.5 |
Setting of interpupillary distance and viewing height ............................................................... |
2-5 |
2.6 |
Attachment of specimen holder to mechanical stage 75x30 R ................................................. |
2-6 |
2.7 |
Attachment of condensers...................................................................................................... |
2-7 |
2.7.1 Attach condenser 0.9 Z .......................................................................................................... |
2-7 |
|
2.7.2 |
Attach condenser II Z 0.9 Ph1, 2, 3 and D (0.6/0.9) ................................................................. |
2-7 |
2.8 |
Connecting the instrument to the line..................................................................................... |
2-8 |
B 40-029 e 01/98 |
III |
Standard 25 ICS
3 |
OPERATION.......................................................................................................................... |
3-3 |
3.1 |
Switch on the instrument ....................................................................................................... |
3-3 |
3.2 |
Setting of transmitted-light brightfield for KÖHLER illumination............................................... |
3-4 |
3.3 |
Setting of transmitted-light phase contrast ............................................................................. |
3-6 |
3.4 |
Setting of transmitted-light darkfield ...................................................................................... |
3-8 |
3.5 |
Setting of transmitted light polarization contrast..................................................................... |
3-9 |
3.6 |
Measurement of lengths ...................................................................................................... |
3-10 |
3.7 |
Attachment of photomicrography equipment ....................................................................... |
3-11 |
3.7.1 |
Attachment of SLR camera, e.g. CONTAX 167 MT ................................................................ |
3-11 |
3.7.2 |
Attachment of MC 80 DX microscope camera (35 mm film cassette)..................................... |
3-13 |
3.8 |
Attachment of adapters for video cameras............................................................................ |
3-14 |
3.9 |
Insertion of 8x drawing eyepiece .......................................................................................... |
3-16 |
4 |
CARE, MAINTENANCE AND TROUBLESHOOTING |
............................................................... 4-3 |
4.1 |
Care and maintenance of the instrument................................................................................ |
4-3 |
4.2 |
Troubleshooting..................................................................................................................... |
4-4 |
4.2.1 |
Changing the fuses ................................................................................................................ |
4-4 |
4.2.2 |
Changing the 6 V 20 W halogen lamp.................................................................................... |
4-5 |
4.2.3 |
Troubleshooting table ........................................................................................................... |
4-6 |
4.3 |
Table of spares, wearing parts and tools .............................................................................. |
4-10 |
4.4 |
Requesting service................................................................................................................ |
4-11 |
Annex................................................................................................................................... |
A-1 |
List of abbreviations ............................................................................................................... |
A-3 |
Physical and technical units..................................................................................................... |
A-4 |
Certification in accordance with DIN EN ISO 9001 / DIN EN 46001........................................... |
A-5 |
EC conformity declaration ...................................................................................................... |
A-7 |
IV |
B 40-029 e 01/98 |
Standard 25 ICS
Notes on instrument safety
The Standard 25 ICS microscope was designed, produced and tested in compliance with DIN 61010-1 (IEC 1010-1), Safety requirements for electrical measuring, control and laboratory instruments, and meets the requirements of appendix I of directive 73/23/EC and the relevant CSA and UL directives. The microscope meets the requirements of the EC directive 89/336/EC and the EMC legislation of November 9, 1992. This operation manual includes information and warnings which must be observed by the user.
The following warning and information symbols are used in this manual:
NOTE
This symbol (hand) is a warning which you must observe under all circumstances.
CAUTION
This symbol (warning triangle) is a warning which indicates a hazard to the operation of the instrument.
CAUTION
Disconnect the instrument from the line!
B 40-029 e 01/98 |
V |
Standard 25 ICS
The Standard 25 ICS microscope, including its original accessories, may only be used for the microscope techniques described in this manual.
Particular attention must be paid to the following warning notes:
The Standard 25 ICS microscope is categorized as Protection Class I and has been allocated the protection degree IP 20. The power plug must be inserted in a properly installed socket featuring a grounding contact. The grounding effect must not be made ineffective by an extension cable which does not have a protective ground wire.
Before switching on the instrument, check whether it is suitable for the line voltage present. Admissible voltage: 100...240 V AC, 50...60 Hz (depending on the model).
Always disconnect the instrument from the line before opening the instrument, before changing the voltage and before changing the fuses.
When changing the instrument fuses, make sure to use only those of the rated power required and the type indicated. The use of makeshift fuses and the short-circuiting of the fuse holders are not permitted.
If it is established that the protection measures are no longer effective, the instrument must be switched off and safeguarded against inadvertent operation.
Dust and dirt can impair the performance of the instrument. Therefore, protect the instrument against these influences as far as possible. If the microscope will not be used for longer periods of time, it must be protected using the dust cover.
The instrument must be operated by trained personnel only who must be aware of the possible danger involved with microscopy and the relevant application.
VI |
B 40-029 e 01/98 |
Standard 25 ICS
The Standard 25 ICS microscope is an optical precision instrument which can be impaired in its performance or damaged when handled improperly.
Notes on warranty:
The manufacturer guarantees that the instrument has no material and production defects when delivered. You must inform us of any defects immediately and we must do anything to minimize the damage. If the manufacturer is informed of such a defect, he is obliged to remove it; it is his decision whether he does this by repairing the instrument or by delivering an instrument free of any defect. No guarantee is provided for defects caused by natural wear (wearing parts in particular).
The instrument manufacturer is not liable for damage caused by faulty operation, negligence or any other meddling with the instrument, or the use of accessories from other manufacturers. This forfeits all the claims against warranty.
With the exception of the work specified in this manual, no maintenance or repair of the Standard 25 ICS may be performed. Repairs may only be performed by Zeiss service staff or specially authorized personnel. Should any defect occur with the instrument, please get in touch with your local Zeiss agency first.
B 40-029 e 01/98 |
VII |
Standard 25 ICS
Overall view of the Standard 25 ICS microscope with polarization equipment
VIII |
B 40-029 e 01/98 |
Standard 25 ICS
DESCRIPTION
Contents
1 |
DESCRIPTION ................................................................................................................. |
1-3 |
1.1 |
Name and intended application........................................................................................ |
1-3 |
1.2 |
Instrument description and main features......................................................................... |
1-3 |
1.3 |
Microscope configurations and modules........................................................................... |
1-4 |
1.4 |
Objectives........................................................................................................................ |
1-6 |
1.5 |
Eyepieces......................................................................................................................... |
1-8 |
1.6 |
Stage micrometers and eyepiece reticles........................................................................... |
1-8 |
1.7 |
Technical Data ............................................................................................................... |
1-10 |
List of illustrations |
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Fig. 1-1 |
Microscope modules........................................................................................................ |
1-2 |
Fig. 1-2 |
Standard 25 ICS microscope configurations....................................................................... |
1-4 |
B 40-029 e 01/98 |
1-1 |
Standard 25 ICS
Fig. 1-1 |
Microscope modules |
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1 |
Eyepieces |
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5 |
Condenser carrier with condenser |
2 |
Binocular tube |
6 |
Mechanical stage with specimen holder |
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3 |
Stand |
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7 |
Objective |
4 |
Coaxial coarse and fine drive |
8 |
Objective nosepiece |
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1-2 |
B 40-029 e 01/98 |
Standard 25 ICS
1 DESCRIPTION
1.1Name and intended application
Manufacturer's name: Standard 25 ICS microscope
The Standard 25 ICS microscope is a universal microscope for the visualization of fine structures and forms in biology and medicine. These are typical application fields of the Standard 25 ICS:
laboratory microscopy
doctor's offices
training (schools and universities).
1.2Instrument description and main features
Thanks to its pyramid design, the Standard 25 ICS is a compact transmitted-light microscope. In addition to high-resolution ICS objectives and the major brightfield, darkfield, phase contrast and polarization contrast techniques, an optional camera port for photo and video documentation is also available to the user.
Major instrument features:
Sturdy and convenient stand in the pyramid design.
User-friendly coaxial coarse and fine drive
Mechanical stage 75x30 R with ceramic-coated stage surface and specimen holder
Space-saving and continuously adjustable, integrated illuminator with long-life 6V 20W halogen lamp.
Swing-in 0.9 Z condenser for brightfield, and Ph condenser II Z 0.9 for brightfield and phase contrast Ph1, 2 and 3.
Ball-bearing, 5-position nosepiece with W 0.8" thread.
ICS objectives in the price/performance categories CP-Achromat, A-Plan and Achroplan.
Binocular tube 45°/20 ICS with a viewing height of approx. 440 mm, and binocular phototube 35°/20 with sliding prism 100 obs /100 doc.
10x eyepieces for the field numbers 20 or 18, suitable for spectacle wearers, fixed and adjustable.
B 40-029 e 01/98 |
1-3 |
Standard 25 ICS
1.3Microscope configurations and modules
Fig. 1-2 Standard 25 ICS microscope configurations with polarization equipment
1-4 |
B 40-029 e 01/98 |
Standard 25 ICS
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Cat. No. |
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Configurations |
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Standard 25 ICS binocular microscope for transmitted-light brightfield and |
490841 9804 |
phase contrast using CP Achromat objectives 10x, 40x Ph2 and 100x |
490841 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield |
490845 9804 |
using objectives "A-Plan" 10x, 40x and 100x |
490845 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield and |
490846 9804 |
phase contrast using objectives "A-Plan" 10x, 40x Ph 2 and 100x |
490846 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield and |
490847 9804 |
phase contrast using objectives "A-Plan" 10x, 20x Ph 2 and 40x Ph 2 |
490847 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield and |
490848 9804 |
phase contrast using objectives "A-Plan" 10x Ph 1, 40x Ph 2 and 100x Ph 3 |
490848 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield using |
490865 9804 |
objectives "A-Plan" 10x, 40x and 100x and phototube |
490865 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield and phase contrast |
490866 9804 |
using objectives "A-Plan" 10x, 40x Ph 2 and 100x and phototube |
490866 9904 |
"Standard 25 ICS" binocular microscope for transmitted-light brightfield and phase contrast |
490868 9804 |
using objectives "A-Plan" 10x Ph 1, 40x Ph 2 and 100x Ph 3 and phototube |
490868 9904 |
Modules |
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1.1"Standard 25 ICS" microscope stand with mechanical stage 75x30 R, 5-position nosepiece W 0.8, including integrated illuminator
stabilized power supply 220 ... 240 V/50 ... 60 Hz / 45 VA |
450815 9902 |
1.1.1Line cable with European plug
1.2"Standard 25 ICS" microscope stand with mechanical stage 75x30 R, 5-position nosepiece W 0,8, including integrated illuminator
stabilized power supply 100 ... 127 V / 50 ... 60 Hz / 45 VA |
450816 9902 |
1.2.1Line cable with American flat plug
1.3 |
Long-life 6 V 20 W halogen lamp (spare lamp) |
380079 9690 |
1.4 |
Conversion filter CB 3; d=32x2 mm |
467852 |
1.5 |
Conversion filter CB 12, d=32x2 mm |
467850 9901 |
1.6 |
Interference wide-band filter, green, d=32x4 mm |
467803 |
2.1 |
Binocular tube 45°/20 ICS |
452928 |
2.2 |
Binocular phototube 35°/20 ICS (100% obs / 50% obs : 50% doc) |
452929 |
3.1 |
Swing-in 0.9 Z condenser |
445211 |
3.2 |
Phase stop carrier Ph 2 for 445211 |
470864 |
3.3 |
Phase contrast condenser II Z 0.9 Ph 1, 2, 3 and D (0.6/0.9) |
445210 |
not shown |
Dry darkfield condenser 0.7 - 0.85 and Z condenser holder |
465506, 445215 |
not shown |
Dry darkfield condenser 0.8 - 0.95 and Z condenser holder |
465505, 445215 |
not shown |
Ultra-condenser 1.2 - 1.4 and Z condenser holder |
465500, 445215 |
3.4 |
Diopter d=30 mm |
444020 |
4.1 |
Dust cover K |
459300 |
4.2 |
Dust cover G (if binocular phototube is used) |
459306 |
All the above microscope configurations with catalogue numbers ending in 9804 feature the line voltage 230 V, and those ending in 9904 have a line voltage of 115 V.
B 40-029 e 01/98 |
1-5 |
Standard 25 ICS
1.4Objectives
The objectives are the optical centerpiece of the microscope. The following is an example of how objectives can be labelled:
CP ACHROMAT 10x/0.25 /-
where |
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10x |
= |
objective magnification, with a defined color ring on the objective being allocated to each |
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magnification step (Zeiss color code) |
0.25= numerical aperture
= infinite tube length
- |
: |
can be used with cover slip thickness D = 0 or 0.17 |
or |
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0.17 |
= |
can be used with cover slip thickness D = 0.17 |
and |
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Oil |
= |
oil immersion objective |
Ph 2 |
= |
phase contrast objective with a green color ring and phase stop Ph 2 |
The objective magnification multiplied by the eyepiece magnification (minimum 10x) results in the visual overall magnification, e.g. 10 x 10 = 100x.
The numerical aperture x 1000, e.g. 0.25x1000 = 250x, is the highest useful magnification, i.e. no further details are resolved above that limit.
The objective labeling indicates that these objectives may only be used with microscopes featuring an infinite tube length and not with instruments the objectives of which are marked with "160" as their mechanical tube length.
The exact observance of the cover slip thickness of 0.17 mm is all the more necessary the higher the numeric aperture of the objective. Therefore, so-called "Corr" objectives can be set for different cover slip thicknesses via a correction ring. For this, a specimen area is searched, and the position of the correction ring where optimum focus and image contrast are obtained is determined (refocusing is always required).
Immersion objectives are always insensitive to differences in cover slip thickness.
When immersion objectives are used, the air between the cover slip and the objective is replaced with a liquid, which is immersion oil in most cases. The plastic oiler containing 20 ml of 581 N immersion oil is particularly suitable for this purpose.
Due to their short working distance, objectives 25x and higher feature resilient mounts (specimen protection). To prevent oil contamination of the specimen when the nosepiece is turned, the resilient mounts of the immersion objectives can be locked in their lifted position by turning them to the right (do not forget to unlock them again!).
1-6 |
B 40-029 e 01/98 |
Standard 25 ICS
The following objectives are available for the Standard 25 ICS microscope:
Microscopy |
Objective |
Magnification/Num. |
Free working |
Cover slip |
Cat.No. |
Technique |
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Aperture |
distance in mm |
thickness D in |
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mm |
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CP-Achromat |
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Transm.-light brightfield |
CP-Achromat |
5x/0.12 |
11.2 |
- |
440920 |
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CP-Achromat |
10x/0.25 |
5.1 |
- |
440930 |
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CP-Achromat |
40x/0.65 |
0.3 |
0.17 |
440950 |
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CP-Achromat |
100x/1.25 Oil |
0.07 |
0.17 |
440980 |
Phase contrast |
CP-Achromat |
10x/0.25 Ph 1 |
5.1 |
- |
440931 |
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CP-Achromat |
40x/0.65 Ph 2 |
0.3 |
0.17 |
440951 |
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CP-Achromat |
100x/1.25 Oil Ph 2 |
0.07 |
0.17 |
000000 1007 159 |
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CP-Achromat |
100x/1.25 Oil Ph 3 |
0.07 |
0.17 |
440981 |
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A-Plan |
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Transm-light brightfield |
A-Plan |
5x/0.12 |
9.9 |
- |
441020 |
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A-Plan |
10x/0.25 |
4.4 |
- |
441030 |
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A-Plan |
20x/0.45 |
0.53 |
0.17 |
441040 |
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A-Plan |
40x/0.65 |
0.43 |
0.17 |
441050 |
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A-Plan |
100x/1.25 Oil |
0.22 |
0.17 |
441080 |
Phase contrast |
A-Plan |
10x/0.25 Ph 1 |
4.4 |
- |
441031 |
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A-Plan |
20x/0.45 Ph 2 |
0.53 |
0.17 |
441041 |
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A-Plan |
40x/0.65 Ph 2 |
0.43 |
0.17 |
441051 |
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A-Plan |
100x/1.25 Oil Ph 3 |
0.22 |
0.17 |
441081 |
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Achrostigmat |
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Transm.-light brightfield |
Achrostigmat |
20x/0.45 |
1.6 |
0.17 |
440140 |
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Achrostigmat |
40x/0.85 Oil |
0.28 |
0.17 |
440250 |
Phase contrast |
Achrostigmat |
20x/0.45 Ph 2 |
1.6 |
0.17 |
440141 |
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LD-Achrostigmat |
20x/0.30 Ph 1 |
1.0...2.2 |
0...2.0 |
440147 |
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LD-Achrostigmat |
32x/0.40 Ph 1 |
1.5...2.2 |
0.5...1.5 |
440149 |
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Achroplan |
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Transm.-light brightfield |
Achroplan |
4x/0.10 |
11.1 |
- |
440020 |
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Achroplan |
10x/0.25 |
4.8 |
- |
440030 |
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Achroplan |
20x/0.45 |
2.07 |
0.17 |
440040 |
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Achroplan |
40x/0.65 |
0.59 |
0.17 |
440050 |
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Achroplan |
50x/0.90 Oil |
0.29 |
0.17 |
440057 |
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Achroplan |
63x/0.80 |
0.29 |
0.17 |
440060 |
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Achroplan |
63x/0.95 |
0.15 |
0 |
440068 |
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(no cover slip) |
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Achroplan |
100x/1.25 Oil |
0.19 |
0.17 |
440080 |
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Achroplan |
100x/1.25 Oil Iris |
0.19 |
0.17 |
440086 |
Phase contrast |
Achroplan |
10x/0.25 Ph 1 |
4.8 |
- |
440031 |
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Achroplan |
20x/0.45 Ph 2 |
2.07 |
0.17 |
440041 |
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Achroplan |
40x/0.65 Ph 2 |
0.59 |
0.17 |
440051 |
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Achroplan |
100x/1.25 Oil Ph 3 |
0.19 |
0.17 |
440081 |
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Plan-Neofluar |
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Transm.-light brightfield |
Plan-Neofluar |
2.5x/0.075 |
9.3 |
- |
440310 |
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B 40-029 e 01/98 |
1-7 |
Standard 25 ICS
1.5Eyepieces
The following eyepieces are offered for the Standard 25 ICS:
Eyepiece |
Image Angle |
Cat. No. |
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Eyepiece PL 10x/18 Br. |
39° |
444131 9901 |
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Eyepiece PL 10x/18 Br. foc. |
39° |
444132 9901 |
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Eyepiece E-PL 10x/20 Br. |
43° |
444231 9901 |
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Eyepiece E-PL 10x/20 Br. foc. |
43° |
444232 9902 |
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Eyepiece PL 16x/16 Br. |
54° |
444053 |
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Eyepiece PL 16x/16 Br. foc. |
54° |
444054 |
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If required, eyecups for the eyepieces can be ordered under the Cat. No. 444801.
1.6Stage micrometers and eyepiece reticles
Measuring and counting using the microscope requires stage micrometers and eyepiece reticles, a small selection of which is listed below:
Illustration |
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Description, Technical Data |
Cat. No. |
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Stage micrometer, positive 5 + 100/100 y D |
474026 |
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= 0.17 mm |
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gradation on the + y-axis: 5 mm in 5 intervals; |
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gradation on the - y-axis: 1 mm in 100/100 mm |
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= 10 m, accuracy 1 m |
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Crossline micrometer disk 14:140 / d =26 |
454060 |
mm |
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gradation length=14 mm |
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increments = 0.1mm |
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gradation tolerance 0.001 mm |
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1-8 |
B 40-029 e 01/98 |
Standard 25 ICS
Crossline disk / d = 26 mm |
474064 |
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Crossline micrometer disk 10:100 / d =26 |
474066 9901 |
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mm |
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gradation length=10 mm |
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increments = 0.1mm |
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gradation tolerance 0.001 mm |
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Net micrometer 12.5x12.5/5;10 / d = 26 mm 474068 area 12.5x12.5 mm, divided in fields of 5x5 or
10x10.
Photo reticle MC 2.5x / d = 26 mm |
454075 |
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for 35 mm photography with an additional |
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magnification |
of 2.5x |
or |
for large-format |
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photography |
with |
a |
10x |
additional |
magnification. |
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If an eyepiece reticle is used, the binocular tube or the phototube must be equipped with two foc. eyepieces containing an adjustable eyelens, into one of which the eyepiece reticle is mounted.
B 40-029 e 01/98 |
1-9 |
Standard 25 ICS
1.7Technical Data
(1) |
Dimensions (width x depth x height) |
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Stand with binocular tube.......................................................................... |
approx. |
200 x 350 x 450 mm |
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Stand with phototube ............................................................................... |
approx. |
200 x 375 x 460 mm |
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Overall height including T2 adapter and CONTAX 167 MT camera housing..................... |
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approx. 570 mm |
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(2)Weight
Standard 25 ICS with binocular tube.................................................................................. |
approx. 6.7 kg |
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(3) |
Ambient conditions |
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Storage and transport (in packaging): |
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Permissible ambient temperature ...................................................................................... |
-40 to + 70° C |
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Permissible relative humidity (without condensation) ............................................................. |
max. 100 % |
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Operation: |
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Permissible ambient temperature ..................................................................................... |
+10 to + 35° C |
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Permissible relative humidity (without condensation) ............................................................... |
max. 85 % |
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Altitude.............................................................................................................................. |
max. 2000 m |
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Atmospheric pressure ............................................................................................. |
800 hPa to 1060 hPa |
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(4) |
Operating data |
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Operation........................................................................................................................... |
closed rooms |
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Protection class....................................................................................................................................... |
I |
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Enclosure protection........................................................................................................................ |
IP 20 |
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Electrical safety................................................................. |
in compliance with DIN EN 61010 (IEC 1010-1) |
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including CSA and UL directives |
Pollution degree ................................................................................................................................... |
2 |
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Overvoltage category............................................................................................................................. |
II |
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Radio interference suppression....................................................... |
in accordance with EN 55011, Class B |
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Line voltage...................................................................................................... |
100 to 127 V AC ( 10%) |
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or 220 to 240 V AC ( 10%) |
Line frequency...................................................................................................................... |
50 to 60 Hz |
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Label of voltage range ............................................................................................... |
see instrument rear |
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Power consumption............................................................................................................... |
max. 45 VA |
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Output voltage ................................................................................ |
stabilized, adjustable from 1.5 to 6 V |
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1-10 |
B 40-029 e 01/98 |
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