Ambient Air Dust Concentration Monitor

Ambient air particulate monitor to detect TSP, PM10 or PM2.5 in ambient air for use in industrial or governmental ambient air monitoring networks.


  • Determination of dust mass concentration in ambient air independent of matter
  • C-14 method, no measurable decrease in activity
  • Lowest radioactivity of all beta gauges, usable without license for handling radioactive substances acc. to governmental regulations
  • Automatic zero point correction
  • Sample gas flow, stabilized 1m³/h
  • Suction of a constant sample gas flow rate independent of ambient temperature and pressure
  • Repeated sampling on the same spot
  • Collected dust sample available for component analysis, e.g. heavy metals
  • RS-232 interface and analog output, status signals


  • Ambient air-monitoring network for particulate matter monitoring
  • Mobile immission measurement vehicle
  • Dust measurement in OSH
  • Indoor dust measurements
  • Dust sampling for analysis of heavy metals and other components
  • Long-term background studies of the immission dust exposure
  • Dust monitoring and sampling in contaminated areas and storage facilities
  • Dust measurement of diffuse emission of building sites or deposits (such as coal)
  • Dust in intake and exhaust ducts



Technical Data

Measurementsdust concentration in ambient air
TSP, PM10, PM2.5
Dust concentration0 - 100 µg/m³ to 0 - 10 mg/m³
Temperature at sample inlet-20°C to +50°C (-4°F to +122°F)
Ambient air pressure800hPa to 1300hPa
Operating temperature for the analyser0°C to +40°C (+32°F to +104°F), non-condensing
CompliancesEuropean Directive 2008/50/EC of the European Parliament and of the Council on ambient air quality and cleaner air for Europe from May, 21st 2008
VDI 4202-1 2004-2008
VDI 2463 TSP Inlet
EN 12341 PM10 Inlet
EN 14907 PM2.5 Inlet
US EPA NAAQS 40 CFR Part 50 PM10/ 2.5 Inlet
CertificatesCE, GOST R, Pattern Approval PRC
Announcement on the Standard Federal Bulletin for the ability of measuring equipment for continuous ambient air monitoring of PM10 (12.09.2006) and PM2.5 (17.06.2014) and EN15267 (PM2.5, PM10)
Measuring principledirect determination of particulate matter deposited on filter tape by help of radiometric detection system
Typeextractive analyser for ambient air, sample is succed through TSP or PM10 or PM2.5 separator and deposited on filter tape
Radiation sourceencased C14 radiation source,
activity < 450kBq (< 12,5µCi)
DetectorGeiger-Müller tube
Sample systemTSP inlet (VDI 2463)
PM10 inlet (EN12341/ NAAQS 40 CFR, part 50 or EN12341:2014)
PM2.5 inlet (EN14907/ NAAQS 40 CFR, part 50 or EN12341:2014)
suction tube
Operationtouch screen, German or English
Accessoriestemperature sensor
absolute pressure sensor
probe heater with temperature sensor
filter tape printer and cover foil for preparation of dust component analysis
roof penetration
Filter materialglass fibre filter (free of heavy metals), retention = 99.95% at 0.3µm particle diameter
Filter tape length30m, 45m (98ft, 148ft)
Measurement value output/ interface2x 4-20mA analog output,
RS 232, also for Gesytec protocol (Bayern/Hessen)
Response timesemi-continuous principle, response time depends on settings of cycle time and sample counts SC (number of cycles per spot)
SC: 1 - 24, cycle time: 1/4h - 24h, selectable
Sample flow rate1000l/h (16,667l/min), max. deviation +/-2%, controlled
Detection limit< 1 µg/m³
Availability> 95%
Measurement data base9 months
Power supply230 V, 50/60 Hz, 2.9 A
115 V, 50/60 Hz, 5.8 A
Measuring output2 x 4-20mA, max. 500 Ohm
1 x RS 232
Relay output8 x relay output, max. load 24V, 0.5A
Input3 x input for external dry contact
Dimensions (HxWxD)approx. 320 x 482 x 530 mm (12.6 x 19 x 20.9'')
19" rack, 7HU or tabletop unit
Weightapprox. 31 kg (68lbs)

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