Dust Monitor ES-642 – MET-ONE

Dust Monitor ES-642 equipment is a precise and efficient device widely used in air quality monitoring.

The ES-642 can measure various types of particulate matter, from PM1 and PM2.5 to PM10, helping you accurately grasp the air pollution situation and protecting health and the living environment.

Introduction to the Dust Monitor ES-642

In the era of industrialization and urbanization, the issue of air pollution is becoming increasingly serious, directly affecting human health. To address this problem, measuring and monitoring air quality has become extremely important.

Dust Monitor ES-642 from MET-ONE was created as an effective solution to help you accurately grasp the air pollution situation in different areas.

The ES-642 Remote Dust Monitor from Met One Instruments (USA) is an industrial air quality sensor designed to provide real-time particulate matter concentration measurements in both indoor and outdoor environments.

Our ES-642 measures particulate matter concentration using a highly sensitive forward scatter laser nephelometer, with a measurement range from 0 to 100 mg/m³ (0 to 100,000 μg/m³). As provided, the ES-642 offers TSP (Total Suspended Particulate) monitoring capabilities as well as optional sharp cut cyclones available for PM1, PM2.5, or PM10.

Operating Principle of the ES-642

Air is drawn into the measurement chamber through a TSP (Total Suspended Particulate) inlet located on top of the device, or through optional Sharp Cut Cyclones (SCCs) for specific particulate matter sizes (PM1, PM2.5, and PM10). The sampled air is drawn through the measurement chamber, which incorporates a sample heating system to stabilize and maintain humidity below 50%. This prevents measurement errors caused by moisture in the sample.

When the laser beam passes through the sample, the presence of particulate matter causes optical phenomena such as refraction and reflection. The scattered light is collected by a photodiode, and the resulting signal is linearly proportional to the concentration of particulate matter in the sample.

Key Features of the Dust Monitoring Equipment

The ES-642 dust monitoring equipment, based on the laser light scattering principle for accurate measurement of airborne particulate matter concentration, offers several key features:

• The device's outer casing is constructed from durable materials, capable of withstanding harsh weather conditions such as rain, sun, and dust. This ensures stable and continuous outdoor operation over extended periods without damage.
• Air Filtration System: A built-in air filtration system prevents dust and debris from reaching the optical components, ensuring accurate measurements even in adverse environments.
• Automatic Zero Calibration: To minimize long-term measurement drift, the device automatically performs a zero calibration every hour.
• Sample Conditioning (Heating and Humidity Control): The integrated sample conditioning system controls and heats the sample to maintain low humidity, thus minimizing measurement errors caused by moisture.
• Front Panel LCD Display: A front-mounted LCD screen displays measured particulate matter parameters. quan trắc bụi.

Applications of the ES-642 Dust Monitoring Equipment

The ES-642 dust monitoring equipment finds wide application in various fields, including: