The Kanomax Digital Dust Monitor – Model 3443 measures aerosol concentrations corresponding to PM10. The intake isolates the aerosol sample so that the optics chamber is kept sterile for improved reliability and low maintenance. The unit measures 0.1 to 10µm particle size aerosol contaminants such as fumes, dust, smoke and mists. It is battery-operated, data-logging, light-scattering laser photometer that gives you real time aerosol mass readings. It is also suitable for clean office settings well as harsh industrial workplaces, construction and environmental sites, and outdoor applications.
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|Main Unit Specifications|
|Measuring Method||Light Scattering Method|
|Measuring Object||Airborne Particle Matter 0.1 to 10 µm|
|Measuring Range||0.001 to 10.0 mg/m3|
|Accuracy||+/- 10% of reading|
|Light Source||Laser diode|
|Data Logging||100,000 data and time stamped measurements|
|Output||0 to 1 V, Pulse, Alarm|
|Power Supply||6 AA batteries or AC adapter|
|Dimensions||W 6.4″ x H 4.3″ x D 2.4″ (162 x 109 x 60mm)|
|Weight||2.9 lbs. (1.3 kg)|
|What’s Included||Meter, Operation manual, Data processing software, USB cable, AC adapter, Rubber protector, LCD protective sheet, Shoulder strap, Filter, NIST TRACEABLE CALIBRATION certificate|
When our laser hits the PM, light scattering occurs. The 3443 collects the amount of scattering light and calculates the mass concentration in proportion to the luminescence. The mass concentration is based on the density of PM, thus gravimetric sampling is required if the density is unknown.
PM stands for particulate matter (also called particle pollution): the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, are large or dark enough to be seen with the naked eye. Others are so small they can only be detected using an electron microscope. Particle pollution includes:
These particles come in many sizes and shapes and can be made up of hundreds of different chemicals. Some are emitted directly from a source, such as construction sites, unpaved roads, fields, smokestacks or fires. Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulfur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries and automobiles.
A dust monitor measures the mass concentration of particulates in the air. This is typically expressed in milligrams of particulates per cubic meter of air. This makes the dust monitor very useful for monitoring substances that could negatively impact a person’s health.
We have two different types: a light-scattering monitor model 3443 (the industry standard) and a piezobalance monitor model 3521.
There are two key differences between the units. The first is that the light scattering model 3443 requires a K-factor to accurately report the mass concentration of particulates, while the piezobalance model 3521 does not. The second key difference is that model 3443 is suitable for long-term monitoring while the piezobalance model 3521 needs to be cleaned every hour to function correctly. The piezobalance monitor is also capable of measuring oil mist for specialized applications.
In order to accurately report on the mass concentration of particulates that it has measured a light-scattering particle counter needs to know the density of the particulates at the measuring site. Without this the unit will still count particulates, but it cannot accurately gauge the concentration in the air. To obtain the factor it is necessary to obtain a gravimetric sampling of the particulates at the measurement site. This is done by collecting particulates in a special sample container and then sending it to a lab for analysis.
Yes, all our instruments come with a NIST TRACEABLE CALIBRATION certificate.
Annual calibration is recommended to ensure accuracy. However, this can vary based on how often the dust monitor is used and the environments it’s used it. Also, some companies have an SOP in place that specifies how often the instrument will need to be serviced. More specifically, regulatory compliances may dictate the calibration interval.
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