AIR QUALITY MONITORING

Dust Sentry

Real-Time Outdoor Ambient Dust and Particulate Monitoring

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Designed for those who need to monitor and manage dust emissions as and when they happen, the Dust Sentry is a nephelometer-based instrument that delivers affordable and accurate real-time measurement of PM10, PM2.5, PM1, or TSP.
 
Compared to reference-equivalent monitors like TEOMs and BAMs which lack sensitivity at short sampling periods, the Dust Sentry reports accurately at 1 minute intervals and has a lower total cost of ownership (up to 5x less). In addition, the Dust Sentry is compact, relocatable and can integrate wind, noise and weather sensors for maximum utility.
 
  • Physical measurement of TSP, PM10, PM2.5 or PM1 mass fractions (not particle counting)
  • Measures and reports data in 1 minute intervals with user selectable averaging
  • MCERTS certified accuracy and repeatability
  • On board storage for over 20 years of data
  • Rugged weatherproof enclosure with solar shielding for very hot climates
  • Quick set up and relocation in under 10 minutes
  • Email / SMS alerts and FTP data export (optional)
  • Optional plug and play environmental sensors
 
Technology Sizes Range Accuracy Flow Rate Lower Detectable Limit (2σ)
Nephelometer PM1, PM2.5, PM10 or TSP
0 to 2000 μg/m3
     
System Specifications
Control System Embedded fanless PC, Intel Atom N2600, 1.6GHz, 2GB RAM, 32GB SSD, Ubuntu Linux
Communications Standard: WIFI, Ethernet (LAN) Optional: Cellular IP GPRS modem
Software
Connect: Runs on embedded PC, accessed via web browser ( IE, Firefox, Chrome, Safari) Cloud: Runs on secure ‘cloud’ servers, accessed via web browser
Connect / Cloud Features: configuration, diagnostics, journal, calibration and data acquisition, plus SMS and email alerts (optional), and auto data export via FTP and email (optional)
Data Logging 32GB Hard Drive (>20 years data storage)
Averaging Period 1 min, 5 min, 10 min, 15 min, 30 min, 1 hr, 2hr, 4 hr, 8 hr, 12 hr, 24 hr
Outputs
RS232 (legacy mode)
2 x Relay (optional)
4 x 4-20mA (optional)
Power Requirements 100-260VAC (standard): 15W / 24W* Regulated 12VDC (if required): 15W / 24W*
Enclosure
Lockable IP65 GRP cabinet with integrated aluminium solar shield armour
Inlet: 36cm heated inlet
Dimensions 483H x 330W x 187D mm (including solar shield armour & mounting brackets)
Weight <13 kg*
Environmental Operating Range -10°C to +50°C
Mounting Pole, tripod and wall mounting brackets included
47mm Sample Filter (Optional) 47mm filter for particle loading analysis
Factory Integrated & Tested Sensors
(Optional)
Gill WindSonic (ultrasonic wind sensor)
Vaisala WXT520 (weather transmitter)
Met One MSO (weather transmitter)
Cirrus MK427 Class 1 (noise sensor)
Novalynx Pyranometer (solar radiation)

*Configuration used for power and weight calculations: base unit, PM10 sharp cut, modem, heater off / heater on.

  • Industrial/occupational hygiene surveys
  • Indoor air quality investigations
  • Outdoor environmental monitoring
  • Baseline trending and screening
  • Engineering control evaluations
  • Remote monitoring 
  • Process monitoring
  • Emissions monitoring
  • Aerosol research studies