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Ultra-fine-particle counter EDM 465

EDM 465
Ultra-fine-particle counter

CPC in mobile weather-proof housing, designed for 24/7 nanoparticle counting. Different calibrations possible, e.g. for real-time monitoring of UFP in ambient air according to CEN draft standard prEN 16976:2023.

Functionality: Condensation particle counter

  • Real-time monitoring of ultrafine particles according to CEN/TS 16976:2016
  • Fully automatic 24/7 monitoring system
  • Temperature controlled weather housing
  • Energy-efficient sampling with isothermal drying system 
  • Versatile data acquisition and communication (data logger with GSM via internet)
  • Meteorological sensors
  • Low maintenance, 30 days unattended operation, remote access
  • High precision at low and high concentrations
  • Excellent counting statistics and reproducibility
  • Low diffusion losses
  • Environmental aerosol research
  • Mobile monitoring of ultrafine particles
  • Traffic emission monitoring
  • Source identification
  • Epidemiological health studies
  • Public site and urban monitoring
  • Technical data
Detection principleCondensation Particle Counter
Working fluidn-butanol (n-butyl alcohol)
OutputParticle number concentration / cm³
Particle concentration rangeSingle count mode: Up to 150,000 particles/cm³Photometric mode: Up to 107 particles/cm³
ReproducibilitySingle count mode: > 95%Photometric mode: > 90%
Particle size range4.0 nm … 1 µmD50 = 7 nm (measured with silver particles)D90 < 14 nm
Response timetrise < 5 stfall < 5 s
Sampling and conditioning1 m sampling pipe with sampling headIsothermal humidity extraction via Nafion membraneSensor controlled
Sample air flow rate0.3 l/min, pulse-free carbon vane pumps
Total flow rate1.5 l/min, ≤ 5% difference to the nominal flow rate
Flow controlCritical orifice with stabilized temperature
Diffusion losses< 30% for smallest relevant particle size of 7 nm
Weather housingStainless steel, powder-coated, thermally isolated, temperature controlled
Climate sensorsWind speed and direction, precipitation, pressure, temperature relative humidityGPS positioning
Data recordingData logger and netbook integrated in housing for online dataOptionally on USB flash drive
ConnectivityData logger, USB, GSM with SIM card for mobile network, analog input for meteorological sensors
Power requirements110 … 220 VAC, 50 … 60 Hz100 … 150 W
Operating conditionsAmbient temperature: -20 ... 40 °C (-4 … 104 °F), RH < 95% Ambient humidity: 0 … 95% RH, non-condensing Absolute pressure range: 500 … 1,100 mbar
Transport and storage0 … 50 °C (32 … 122 °F)RH < 95%
Dimensions (H x W x D)Housing: 49 x 28 x 65 cm (19.3 x 11 x 25.6 in) Total height with sampling pipe and meteorological sensor: 140 cm (55.1 in)
Weight38 kg (83 lbs)
  • Optional