Summary
The MT6820 and 6830 microscopes are custom-designed for asbestos fiber counting and bulk fiber identification. As such, they are manufactured under NIOSH 9002, NIOSH 7400 and OSHA ID 160 standards. As an upgrade from the MT6100 series, they include a 5th (phase) objective and hence, the capacity for phase contrast and polarizing applications.
Optics
The Seindentopf viewing head is inclined at a comfortable 30º and is available in either binocular or trinocular format. interpupillary adjustment IS from 53mm - 75mm. The head includes reticle angle compensation that maintains the reticle perpendicular in the field of view when the interpupillary distance is changed. There are three eyepieces included: 10x widefield high eyepoint eyepiece , one widefield high eyepoint focusable eyepiece with crossline reticle and guide pin, and one 10x widefield high eyepoint compensating focusing eyepiece with Walton & Beckett reticle.
The MT6820/6830 comes standard wtih 5 objectives, including three strain-free plan objectives of 10x, 20x & 40x, one 10x dispersion staining objective and one Plan semi achromat 40x phase objective.
Please note that the trinocular format requires an adapter appropriate for your camera.
Phase Contrast/Polarizing
Components include a First Order red compensating plate, Bertrand lens, analyzer in sliding mount, Blue Clear and Green Interference Filters of 29.8mm dia. each, and a centering telescope.
Stage & Focus
The ceramic-coated mechanical stage is rotatable with 360° gradations with vernier and two stage clips.
Condenser & Illumination
A strain-free Abbe NA 1.25 condenser with sliding mount is standard, along with a centering annulus for 10x, 20x, 40x phase or dispersion staining objectives, iris diaphragm and dovetail mount. Koehler illumination includes 6V 30w halogen with variable intensity control and in-base transformer.
Accessories
Centering telescope, green interference filter 546nm, blue clear filter, dust cover, manual.
Specifications of Component Options
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MT6820 Binocular 
MT6830 Trinocular Product Details Brand Meiji Techno Meiji Techno Notes Product Weight 14 14 Product Length 255 mm 255 mm Product Width 195 mm 195 mm Product Height 395 mm 395 mm System System Type Brightfield Phase Contrast Optical Design DIN 160mm DIN 160mm Head Head Type Binocular Trinocular Ocular Angle 30° 30° Diopter Adjustment Dual Dual Interpupillary Adjustment Arc (Seidentopf) Arc (Seidentopf) Interpupillary Adjustment Range 52 – 72 mm 52 – 72 mm Trinocular Tube Focusable? No No Parfocal No No View Orientation Inverted View Inverted View Ocular Tube Diameter 23 mm 23 mm Trinocular Type - Switchable Beam-Split Body Nosepiece Orientation Front-facing Front-facing Nosepiece Style Quintuple (5) Quintuple (5) Focus Controls Coarse & Fine Coarse & Fine Focus Mechanism Rack & Pinion Rack & Pinion Focus Control Location Dual Ambidextrous Dual Ambidextrous Focus Controls Graduated? Yes Yes Focus Control Safety Stop Slip Clutch Slip Clutch Stage Type Fixed with Attached Mechanical Slide Holder Fixed with Attached Mechanical Slide Holder Stage Features 360deg Indexed 360deg Indexed Stage Dimensions 170mm x 140mm 170mm x 140mm Stage Range of Movement (XY) 80mm x 52mm 80mm x 52mm Stage Range Graduated? Yes Yes Configuration Includes Eyepieces? Yes Yes Included Eyepiece Quantity 2 2 Included Eyepieces (X) 10X 10X Eyepiece Style SWF Super Widefield (FN 20mm) SWF Super Widefield (FN 20mm) Available Eyepieces 10X 10X Includes Eyecups? No No Min Standard Mag 50X 50X Max Standard Mag 500X 500X Objectives Included Objectives (Qty) 3 3 Objective Lens Plan Plan Included Objective Types Brightfield Brightfield Included Objectives Parfocal Adjustable? No No Condenser Condenser Type Abbe Brightfield Abbe Brightfield Condenser Features Achromatic Achromatic Condenser N.A. 1.25 mm 1.25 mm Filter Diameter 30 mm 30 mm Illumination Illumination Type Halogen Halogen Illumination Style Transmitted Transmitted Collector Type Kohler Kohler Collector Features Field Diaphragm Field Diaphragm Transmitted Light Type Halogen Halogen Transmitted Light Specification 30W 30W Transmitted Light Control Variable Variable Power Supply 120V AC 120V AC Fuse 3A 3A Polarizing Polarizing Accessories Bertrand Lens (conoscopic observation) Bertrand Lens (conoscopic observation) Reticles Reticles Available? No No Accessories Included Extras Dust Cover Dust Cover Case Included? No No
| Brand | Meiji Techno |
|---|---|
| Recommended For | 0 |