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User Manual for National 205-RLED Cordless Three Objective Single Viewing Microscope Click to enlarge the picture
Contents of the user manual for the National 205-RLED Cordless Three Objective Single
- Product category: Microscopes National
- Brand: National
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for National Microscopes
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User manual for the National 205-RLED Cordless Three Objective Single contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any National product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official National user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a National product will considerably shorten its lifespan!
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Product description The 205-RLED Cordless Microscope from National Optical is a three-objective cordless microscope with a 45° inclined monocular, and a 10x eyepiece with an 18 mm wide field of view. The three objectives are 4x, 10x, and 40xR, and feature achromatic lenses which reduce color distortions introduced by imperfections of optical elements. Reducing these color distortions allows you to see sharper images with better color fidelity. The retractable 40xR objective has a spring-loaded lens which will retract when it touches the slide thereby protecting the lens and the slide. The parfocalled and parcentered design allows for switching objectives without having to realign your sample and without losing focus. The microscope also features a fine and coarse focusing and a platform stage with two spring-loaded coupled slide clips.
To see details of your specimens more easily, the microscope has an LED illumination system with adjustable brightness. The light intensity it delivers is equivalent to that of a 20W incandescent bulb. The white light from the bottom LED emitter is collimated by a 0.65 NA Abbe condenser. Located underneath the stage is a disc diaphragm with apertures of different sizes. It allows you to change the width of the illumination beam which helps you tune the image contrast when using different magnifying powers.
Included with the microscope are three rechargeable AA NiMH batteries, a wall power adapter, a dustcover, and two Allen wrenches for rack stop and eyepiece socket tension adjustment. To recharge your microscope's batteries, just connect the microscope to the wall power adapter. Optical System -
- Achromatic 4x, 10x, 40xR
- Objective 40xR is retractable
- Total magnification: 40x, 100x, 400x
- 10x/18mm wide field eyepiece has a pointer
- Parfocalled and parcentered
- Monocular is 45° inclined
- Head rotates 360°
Focusing -
- Separate fine and coarse focusing knobs
- Slip clutch prevents damage to focusing system
- Tension adjustment eliminates stage drift
- Safety rack stop prevents damage to slides and objective lenses
Illumination and Power -
- LED illumination equivalent to a 20W tungsten bulb
- 0.65 NA Abbe condenser lens with spiral focusing mount
- Cordless operation using included rechargeable batteries
- Rheostat intensity control
Stage -
- Platform stage
- Disc diaphragm with apertures
- Coupled slide clips
Construction Details -
- Objective turret in reverse position
- Cast aluminum frame with handles
- Gray enamel finish
In the Box National 205-RLED Cordless Three Objective Single Viewing Microscope - 3 x AA NiMH, Rechargeable Batteries
- Wall Power Adapter
- Dustcover
- 2 x Allen Wrenches
- Limited 5-Year Warranty on Microscope
Table of Contents
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Technical parametersNational 205-RLED Specs | Microscope Type | Compound | | Eyepiece | 10x / 18 mm, wide field | | Nosepiece | Reverse | | Objective(s) | 4x, 10x, 40xR | | Head | Rotating 360° | | Focuser | Fine / Coarse | | Light Source | LED | | Light Control | Rheostat | | Specimen Stage | Platform | | Battery / Runtime | 3 x AA NiMH, rechargeable / 50 hr max | | Charging Time | 8 hr minimum | | Overall Dimensions | 18 x 12 x 11" (45.7 x 30.5 x 28 cm) | | Weight | 8 lb (3.6 kg) |
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