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Description
Count hazardous airborne asbestos fibers according to regulatory NIOSH 7400 criteria using the Optika B-510ASB Asbestos Phase Microscope. It comes factory-fitted with an authentic Walton & Beckett reticle inside an extra-widefield high-eyepoint WF 10x/22 mm eyepiece, eliminating calibration guesswork during fiber aspect ratio checks. Powered by an infinity-corrected IOS optical train, it delivers 40x, 100x, 400x, and 1000x magnification via four strain-free Plan Phase lenses: IOS W-PLAN PH 4x, PH 10x, spring-loaded PH 40x, and spring-loaded PH 100x oil immersion.
Transmitted light is driven by a high-output X-LED8 8W white LED module paired with a full Köhler field iris diaphragm, matching the photon density of a 100W halogen bulb without heating delicate slide filter membranes. The sub-stage houses a specialized 5-position turret condenser (NA 1.25) integrating dedicated phase annuli and rotatable polarization filters for rapid chrysotile and amphibole screening. The oversized 233 x 147 mm mechanical stage provides 78 x 54 mm of low-drop coaxial XY travel, while coaxial coarse and fine focus knobs track in 2-micron increments across a rigid 9.5 kg cast chassis with an overhead 100:0 / 0:100 photo port.
Key Features of Optika B-510ASB Asbestos Phase Microscope
A specialized regulatory asbestos analysis microscope combining phase contrast and polarization optics with an authentic Walton & Beckett reticle. Features four strain-free IOS W-PLAN phase objectives, an 8W X-LED8 Köhler illuminator, a 5-position turret condenser, and a dedicated camera port.
- Factory-installed Walton & Beckett counting reticle within an extra-widefield 22 mm eyepiece
- Strain-free IOS W-PLAN PH infinity objectives: 4x, 10x, spring-loaded 40x, and 100x oil
- Specialized 5-position turret condenser (NA 1.25) with phase rings and rotatable polarization filters
- Full Köhler transmitted illumination powered by an energy-efficient high-output 8W X-LED8 module
- Dedicated vertical photo port tower with selectable 100:0 / 0:100 optical beam splitter
- Oversized 233 x 147 mm double-layer mechanical stage with 78 x 54 mm coaxial XY drive
- Precision coaxial focus drive with 2-micrometer fine division markings and safety rack stop
- Substantial 9.5 kg laboratory-grade composite frame isolates slide tracking from bench vibrations
Walton & Beckett Reticle & Regulatory Fiber Counting
Meeting OSHA and NIOSH 7400 standards requires precise counting fields and 3:1 fiber length-to-width ratio checks. The factory-mounted Walton & Beckett reticle projects calibrated circular counting fields directly into the observer’s eye, letting analysts log hazardous fibers without manual grid overlays. The strain-free IOS W-PLAN phase lenses produce high-contrast diffraction halos around transparent chrysotile fibrils, ensuring thin single-micron fibers stand out against the cleared membrane filter matrix.
5-Position Polarizing Turret & 8W X-LED8 Köhler Light
Rotating the sub-stage turret lets technicians switch from positive phase contrast to crossed-polarized light in seconds, verifying fiber extinction angles and distinguishing true asbestos from synthetic mineral wools. The 8W X-LED8 light engine floods the specimen with daylight-balanced 6000K illumination, keeping color temperature consistent across all brightness levels without cooking slide immersion oils or warping cellulose ester filter sheets.
- 5-position condenser combines phase contrast counting with polarization fiber identification
- 8W X-LED8 Köhler illuminator delivers uniform, high-contrast background fields without glare
- Selectable beam splitter directs 100% of light to digital cameras for legally defensible logging
Optika Ten-Year Manufacturer Limited Warranty
Optika backs the B-510ASB with an industry-leading 10-year warranty covering optical elements, internal prism paths, and mechanical stage drives, backed by two years on electronic LED circuitry. The complete package contains the B-510ASB microscope tower, Walton & Beckett reticle eyepiece, four IOS W-PLAN phase objectives, 5-position turret condenser, phase centering telescope, immersion oil bottle, power cord, and manual.
Optika B-510ASB Asbestosis Trinocular Microscope Phase Contrast W-PLAN IOS 40x-1000x EU Specs
| Brand | Optika |
| Full Model Code / SKU | B-510ASB |
| Country of Origin | Italy |
| Microscope Type | Professional Laboratory Polarizing and Phase Contrast Compound Microscope Custom-Configured for Asbestos Fiber Analysis |
| Optical System Type | IOS Infinity Corrected Optical System providing distortion-free tracking profiles across wide structural fields |
| Observation Tube Type | Trinocular observation head combining dual visual ocular paths with a dedicated top-mounted vertical photo tracker channel |
| Tube Inclination & Rotation | Visual viewing tubes inclined at a comfortable 30-degree position with a full 360-degree rotational mounting assembly |
| Eyepiece / Field of Number | Pair of extra-widefield high-eyepoint WF10x eyepieces displaying an oversized field index of exactly 22 mm (Includes Walton & Beckett reticle) |
| Nosepiece Design | Quintuple revolving nosepiece operating on internal precision ball-bearings with structural click-stop positioning |
| Objectives Classification | IOS W-PLAN PH Strain-Free Infinitely Corrected Phase Contrast Optical Objectives for precise boundary resolution |
| Objectives Magnification Breakdown | Includes four specialized lenses: IOS W-PLAN PH 4x, PH 10x, PH 40x (Spring), and a high-resolution PH 100x (Spring, Oil) cartridge |
| Total Magnification Range | Delivers discrete structural compound magnification checkpoints tracking through 40x, 100x, 400x, and up to 1000x points |
| Focusing Type & Graduation | Coaxial coarse and fine adjustment tracker wheels fitted with safety stop brackets; fine tracking increments at 0.002 mm |
| Stage Dimensions & Surface Coating | Oversized double-layer mechanical sliding specimen stage measuring 233 x 147 mm with a wear-resistant black finish coat |
| Stage Travel Range & Controls | Coaxial drop-down X-Y directional adjustment tracks delivering an active cross-travel span of exactly 78 x 54 mm |
| Condenser Type & Numerical Aperture | Specialized 5-position turret phase contrast condenser tracking 1.25 N.A. with integrated polarization filters and phase ring positions |
| Illumination Transmitted Type | Patented X-LED8 system featuring a high-power 8W white LED module paired with a custom field iris layout for full Koehler setup |
| Illumination Epi-EPI/Reflected | None |
| Light Intensity Management | Continuous electronic brightness wheel potentiometer tracker matching complex asbestos fiber diffraction settings |
| Camera Port / C-Mount Adapter Split | Dedicated vertical photo port tower featuring a selectable light path splitter configuration (100% visual / 100% video) |
| Contrast Methods Capability | Phase contrast microscopy for fiber counting, polarized light screening, brightfield evaluation check loops |
| Power Supply & Voltage Input | Standard integrated European specification multi-voltage internal power transformer accepting 100-240V AC inputs |
| Physical Dimensions & Net Weight | Chassis height 420 mm, width 270 mm, depth 390 mm, laboratory grade composite structural mass exactly 9.5 kg |
| Standard Package Accessories Included | Asbestosis microscope tower, Walton & Beckett reticle sheet, four phase objectives, centering telescope eyepiece, power cord |
| Primary Application & Environment | Asbestos laboratory clearing counters, environmental hazard regulatory verification cells, occupational safety testing desks |
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