{"id":1139,"date":"2026-03-24T20:51:28","date_gmt":"2026-03-24T20:51:28","guid":{"rendered":"http:\/\/localhost:10074\/?post_type=solutions&p=1139"},"modified":"2026-08-05T22:47:06","modified_gmt":"2026-08-05T22:47:06","slug":"2win-nephelometer","status":"publish","type":"page","link":"https:\/\/www.ambilabs.com\/it\/instruments\/2win-nephelometer\/","title":{"rendered":"2WIN\u00ae Nephelometer"},"content":{"rendered":"\n
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\n Particulate & Smoke Monitoring<\/span>\n

Two Wavelength Integrating Nephelometer<\/h1>\n

The Ambilabs® 2WIN continuously monitors dust, smoke, particulates, and visibility indoors and outdoors — accurate even under extreme conditions, with patented light source technology (U.S. Patent 7,671,988 B2).<\/p>\n\n

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\n Product Overview<\/span>\n

Continuous Ambient Particulate Monitoring<\/h2>\n

The Ambilabs\u00ae 2WIN Nephelometer is a robust ambient air-quality instrument designed to measure particle concentrations, ambient visibility, and source apportionment information.<\/p>\n

The system includes an LCD display for measured parameters, flow rate, instrument status, and power. It also uses active humidity-controlled heating, detailed in Measurement Method below.<\/p>\n <\/div>\n\n

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\n Measurement<\/span>\n Dual wavelength aerosol scattering<\/strong>\n <\/div>\n\n
\n Output<\/span>\n Scattering coefficient and PM estimate data<\/strong>\n <\/div>\n\n
\n Application<\/span>\n Ambient shelters and monitoring facilities<\/strong>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n
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Built for ambient monitoring:<\/strong> The 2WIN Nephelometer combines aerosol scattering measurement, automatic calibration routines, humidity control, and integrated system components in one compact package.<\/p>\n <\/div>\n <\/div>\n <\/section>\n\n <\/div>\n<\/div>\n\n\n\n

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\n Measurement Method<\/span>\n

Particle concentration, visibility, and source information from aerosol light scattering<\/h2>\n

The 2WIN Nephelometer determines particulate concentration by measuring total scatter from aerosols at each of its two operating wavelengths.<\/p>\n

Comparing scattering between the two wavelengths yields the \u00c5ngstr\u00f6m exponent, which is inversely related to particle size in the sample air. This helps provide information about the average particle size distribution.<\/p>\n <\/div>\n\n

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\n Aerosols<\/span>\n

Light Scattering<\/h3>\n

Measures total aerosol scatter to support particle concentration and visibility monitoring.<\/p>\n <\/div>\n\n

\n Dual Wavelength<\/span>\n

\u00c5ngstr\u00f6m Exponent<\/h3>\n

Uses two wavelengths to help estimate particle size characteristics in the sampled air.<\/p>\n <\/div>\n\n

\n Humidity Control<\/span>\n

Active Heating<\/h3>\n

Warms the sample air and sample cell based on relative humidity, maintaining sample RH from below 30% to below 90% to help reduce moisture-related particle growth.<\/p>\n <\/div>\n\n

\n Automation<\/span>\n

Auto Calibration<\/h3>\n

Includes purge air, automatic zero calibration, span checks, and optical reference calibration routines.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/section>\n\n <\/div>\n<\/div>\n\n\n\n

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Instrument Range<\/div>\n\n
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Wide measurement range for demanding monitoring applications<\/h2>\n

The instrument supports a wide scattering measurement range, with PM estimate output based on a user-selectable calibration.<\/p>\n\n

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Key Specifications<\/h3>\n