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Digital Dust Monitor – Model 3443

Name: Digital Dust Monitor – Model 3443
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Description

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

Features & Benefits

Measures PM 10 particle matters, such as dust, fumes, and smoke
Real time and long term measurements of dust concentration
Compact and lightweight unit
PC interface with USB and software for downloading data to your PC
Analog output controls other devices
Data logging up to 100,000 measurements and displays MIN / MAX / AVG and Timing graph for review
Complete with rubber protector, shoulder strap, data processing software, USB cable, AC adaptor, 2 pcs LCD protective sheet, rubber cap, 2 pcs filter
Calibration certificate
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.
This measures 0.1 to 10µm particle size aerosol contaminants such as fumes, dust, smoke and mists.
Battery-operated, data-logging, light-scattering laser photometer that gives you real time aerosol mass readings.
Suitable for clean office settings well as harsh industrial workplaces, construction and environmental sites, and outdoor applications.

Applications

IAQ Investigations
Industrial Hygiene
Occupational Health & Safety
Contamination Exposure Monitoring
Manufacturing Process Control

Specifications

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
General Specifications
Light Source	Laser diode
Data Logging	100,000 data and time stamped measurements
Interface	USB
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)
Warranty	1 year
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

Resources

Accessories

Digital Dust Monitor Spare Rubber Protector: Model 3442-02
Digital Dust Monitor Spare Rubber Cap: Model 3442-10
Digital Dust Monitor Filter: Model 3431-03
LCD Protective Sheet: Model 3442-04
Carrying Case for Dust Monitor: Model 3442-05
Digital Dust Monitor Analog Cable: Model 3442-01
Tripod: Model TRIPOD-01

FAQ

1. How does our light-scattering method Dust Monitor work?

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.

2. What is PM, and how does it get into the air?

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:

PM₁₀: inhalable particles, with diameters that are generally 10 micrometers and smaller; and
PM_2.5: fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller.
- How small is 2.5 micrometers? Think about a single hair from your head. The average human hair is about 70 micrometers in diameter – making it 30 times larger than the largest fine particle.

Sources of PM

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.

3. What does a dust monitor measure?

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.

4. What types of dust monitors does Kanomax offer?

We have two different types: a light-scattering monitor model 3443 (the industry standard) and a piezobalance monitor model 3521.

5. What’s the difference between the two types of monitors?

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.

6. Could you explain what a K-factor is and why I need it to use the model 3443?

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.

7. Do the dust monitors come with a calibration certificate?

Yes, all our instruments come with a NIST TRACEABLE CALIBRATION certificate.

8. How often does the unit need to be calibrated?

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.

Digital Dust Monitor – Model 3443