The DustScan Scout Aerosol Monitor is a battery-operated, handheld survey tool to used to assess particulate matter (PM) concentrations in indoor and outdoor enivronments.

The DustScan Scout Aerosol Monitor is a battery-operated, handheld survey tool to used to assess particulate matter (PM) concentrations in indoor and outdoor enivronments.

Product Details

Applications

The monitor provides time-resolved PM concentration information as a trend indication for indoor, industrial, and outdoor air quality assessment.

Technology

The DustScan Scout unit uses near forward light scattering with advanced features such as a purge air flow and automatic rezeroing to provide high quality, real-time PM loading information.Regulatory Status Not applicable.Details

Advanced Real-Time Particle Trending...

The DustScan Scout Aerosol Monitor provides an effective means of assessing the concentration of particulate matter (PM) in indoor, industrial and outdoor environments. Its modularity and advanced features ensure reliability and high data quality. It has a very large dynamic range, with the ability to assess PM concentrations in clean ambient settings as well as heavily-loaded environments.

Measurement Technology

The system makes use of near-forward light scattering to assess the concentration of particulate matter in ambient air. It is an advanced nephelometer with auto zeroing and continuous optics purging. The light source is a safety-interlocked laser that operates at a wave length of 670 nm. The scattered light caused by the presence of particles is received by a sensor, forming the basis of the monitors computations. The sensor is located at a 180-degree angle from the light source.

Size-Selective Sampling

A unique system of foam inserts for its sample inlet provides a convenient means of sampling different particle size ranges, including TSP (without insert), thoracic (PM-10), ISO respirable (4.5 micron diameter), and fine (PM-2.5).Click here to view the performance curves of the foam inserts. The inserts generally last for one day of instrument operation, and are easily to exchange. A long-life pump provides an active sample flow, with a default flow rate of 2 l/min.

Insertion of foam cartridge into inlet

The monitors small size, low noise and battery operation make it possible to use it in a large number of applications. Data handling features such as on-screen review of stored information (even during sampling) and simple downloading of data to a PC facilitate the evaluation of particle loading data. A large backlit liquid crystal display (LCD) provides a convenient menu-driven user interface.

Close-up view of DustScan Scout Monitor with LCD screen

The DustScan Scout unit computes a new mass concentration data point every second(down to 0.001 milligrams per cubic meter). The user can select the data storage interval, which can range from 2 seconds to 30 minutes. The monitor indicates the minimum and maximum PM concentrations with time stamps for each measurement interval, along with the average concentration. The unit has a capacity of 25,000 data records.

Eight-digit alphanumeric location codes allow for the easy identification of stored information. The monitor includes software for downloading data to a PC in a spreadsheet-compatible format. One contact closure opens at a concentration level specified by the user, and real-time data can be transmitted to other devices using the included 0-5 VDC analog output.

A span insert can be used to check the monitor against its initial span setting. The device is originally calibrated against a known concentration of Arizona Road Dust (ARD).

Confirming the monitors span setting utilizing the span insert

Tool-less exchange of in-line filters and batteries facilitate the users interaction with the monitor.

In-line filters removed from monitor

Batteries in holder

An outdoor enclosure is available to house the DustScan Scout unit for long-term field installation. The device is called theDustScan Sentinel Model 3030 Aerosol Monitor in this configuration.