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EDM 180+

EDM 180+
Approved next generation PM monitor

Provides all features of the EDM 180 plus additional USB and Ethernet interfaces. This approved environmental dust monitor is the leading product for measuring particulate matter concentration (PM10, PM2.5) in ambient air. It is in service in government networks and institutions in over 30 countries.


Functionality: Light scattering at single particles

  • 19-inch measuring device with 19-inch attachment, sampling probe, meteorological sensor, and accessories; configurable by the customer (firmware, meteorological sensor, etc.)
  • Approvals: PM10 (EN-12341, MCERTS, ...), PM2.5 (US-EPA, EN-14907, MCERTS, ...)
  • Real-time monitoring of PM values (PM10, PM2.5, PM1), total counts (TC), and particle number distribution
  • ʺFull flow analysisʺ of the entire sample volume
  • USB and Ethernet
  • Fully automatic monitoring system with remote access
  • Purge-air circuit to protect optical components
  • Self-test of all optical and pneumatic components for high quality standards
  • Total inlet flow analyzed in optical cell
  • Versatile data acquisition and communication (GSM data logger)
  • Suitable for many applications
  • Extremely energy-efficient, low maintenance, no consumables
  • No loss of semi-volatile compounds, no radioactive source, insensitive to vibrations (applicable also in vehicles)
  • Excellent counting statistics and reproducibility at low and high dust concentrations
  • AMS for PM networks
  • PM monitoring
  • Epidemiological studies
  • Monitoring of construction and mining sites
  • Technical data
Detection principleLight scattering at single particles with diode laser; detection volume aerodynamically focused (ISO 21501-1), no border zone error
Measured mass fractionsPM10, PM2.5, PM1
Particle size range0.25 … 32 μm
Size channels31
Particle number concentration0 … 3,000,000 particles/l
Reproducibility> 97% of total measuring range
DetectorFast signal processing, 2x 16 raw data channels
Time resolution6 s (selectable storage intervals: 6 s, 1 min, 5 min, 10 min, 15 min, 30 min, 1 h)
Sample flow rate1.2 l/min, ±3% constant due to self-regulation
Sampling inletIsothermal humidity extraction via Nafion membrane, sensor-controlled, without loss of semi-volatile compounds (SVC)
Internal purge air0.4 l/min, protection of laser optics, reference air for self-test
OperationKeypad, data logger or PC with GRIMM software, or HyperTerminal
Data interfacesRS-232 (GESYTEC), USB-B (115,200 baud/s) Ethernet (10BASE-T/100BASE-TX)
Analog input1 port (0 … 10 V) for auxiliary sensors
Power supplyIn: 230 V/50 Hz; optional 115 V/60 Hz
Power consumption18 W standard104 W with Nafion dryer116 W maximumImax: 1.4 A
Temperature range-20 … +50 °C (-4 … 122 °F), non-condensing
Absolute pressure range900 … 1,100 mbar, adjustable sample flow rate at high altitudes over 2,000 m
Weather protection housingModel 199, stand-alone, fully air-conditioned, providing space for EDM 180 and other 19″ rack instruments (see Accessories)
Dimensions (H x W x D)26.6 x 48.3 x 36.4 cm (10.5 x 19 x 14.3 in) without sampling inlet (19″ rack, 4U, 2U extra for rack adapter)
Weight18 kg (39.7 lbs) without rack adapter and sampling pipe

  • Certificates and approvals: US-EPA
  • Real-time monitoring of PM values (PM10, PM2.5, PM1) and particle number
  • "Full flow analysis" of the entire sample volume
  • Mandatory
  • Optional
EDM 180+ consists of the 19-inch measuring device, a 19-inch attachment, the sampling probe and the meteorological sensor. It is offered with all necessary accessories, but can be configured by the customer (firmware, meteorological sensor etc.)
199: Stand-alone, fully air-conditioned weather protection housing, providing space for EDM 180+ and other 19″-rack instruments
1178: Advanced GRIMM software
1146: GPS sensor
180-DL: Data logger stores data on micro SD card, radio transmission via GSM to server-based platform for access at any time from anywhere
157L: Sensor for temperature, relative humidity, and pressure
158L: Sensor like 157L plus wind speed and direction; requires data logger 180-DL
159L: Sensor like 158L plus precipitation; requires data logger 180-DL