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User Manual for National Model 420T-420AHF-10 Stereoscopic Microscope Click to enlarge the picture
Contents of the user manual for the National Model 420T-420AHF-10 Stereoscopic Microscope
- 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 Model 420T-420AHF-10 Stereoscopic Microscope 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 National Optical & Scientific Instruments Model 420T-420AHF-10 Stereoscopic Microscope provides the user with a large image which remains clear throughout the 10-40x magnification. In addition, the microscope shows an upright, unreversed three dimensional view and a top light with a directional beam. Optional eyepieces and auxiliary objectives can be used to expand the magnification range and working distances. The trinocular port accepts video or SLR adapters (included), while the paired widefield 10x eyepieces are inclined at a 45° angle. The viewing head also rotates 360° for sharing with other students or colleagues. The 420T-420AHF-10's lenses are achromatic and color corrected. When it comes to focusing, large dual focusing knobs help the user to make easy adjustments. The slip clutch prevents damage from over turning, while a tension adjustment eliminates focus drift. The microscope is illuminated by both halogen and fluorescent light. The top light being a 12V halogen with a directional beam and rheostat control, the bottom being a 110V fluorescent. Base mounted controls make operation simple. The lights illuminate two frosted glass stage plates. - Optical System
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- Paired widefield 10x eyepieces are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm. Accepts 23mm eyepiece reticle
- Viewing head rotates 360°
- Achromatic, color corrected lenses
- Continuous magnification from 10x through 40x
- Focusing
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- Large dual focusing knobs with slip clutch to prevent damage to mechanism
- Tension adjustment eliminates focus 'drift'
- Illumination
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- Top light is 12V 15 watt halogen, bi-pin with directional beam and rheostat control
- Bottom light is 110V 5 watt fluorescent for cool operation, greater light efficiency
- Base mounted light controls permit choice of top only, bottom only, or dual illumination
- Heavy-duty 3-wire grounded cord and plug
- Stage
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- Two 80mm stage plates (frosted glass and reversible black/white plastic contrast plates)
- Blue filter for transmitted light
- Locked-on stage clips
- Frame
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- Professional, all-metal frame, gray enamel finish
- Heavy-duty post mount with locking support collar, permits up or down adjustment of viewing head to accommodate different sized objects on stage
- Height: 13 3/8" (340mm); extends: 17" (433mm) for larger objects
- Base width: 6 3/4" (171mm); base depth: 9 1/2" (242mm)
- Net weight: 12 lb (5.4kg)
In the Box National Model 420T-420AHF-10 Stereoscopic Microscope Vinyl Dustcover Rubber Eyeshields Instruction Manual Limited Lifetime Warranty Table of Contents
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Technical parametersNational 420T-420AHF-10 Specs | Microscope Type | Stereoscopic | | Magnification | 10-40x | | Objectives | Not specified by manufacturer | | Eyepiece | Widefield 10x | | Light Source | Top light: 12V 15W halogen Bottom light: 110V 5W fluorescent | | Overall Dimensions | Height: 13 3/8" (340mm); extends: 17" (433mm) Base width: 6 3/4" (171mm); base depth: 9 1/2" (242mm) | | Weight | 12 lb / 5.4kg | | | | Package Weight | 15.85 lb | | Box Dimensions (LxWxH) | 22.4 x 16.5 x 12.4" |
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