GRIMM Aerosol Technik Ainring GmbH & Co. KG - a member of the Durag Group

- Model 11-D - Dust Decoder

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SECURE YOUR DISCOUNT TODAY! The most powerful dust monitor. The model 11-D, in its compact and rugged design, combines all advantages of the previous portable GRIMM aerosol spectrometers with the improved optical detection, long-term battery operation, and facilitated handling. This configuration places the 11-D in the leading position of the portable aerosol spectrometers for monitoring inhalable, thoracic and respirable dust, PM values, and particle number concentration. The 11-D is the optimal solution for reliable, flexible and real-time measurements for aerosol research and indoor air quality, e. g. at workplaces, interior of vehicles, or for process analysis.

  • Enviro algorithm: TSP, PM10, PM4, PM2.5 PM1, PMcoarse | IAQ algorithm: pm10, pm2.5, pm1, inhalable, thoracic, respirable
  • real-time monitoring of particle number over size, particle surface over size, particle mass over size
  • additional information of particle number, particle surface, and dust mass distribution
  • 31 equidistant size channels, PSL traceable
  • integrated 47 mm PTFE filter (GRIMM dual technology)
  • versatile data acquisition and communication interfaces (Bluetooth, USB, Ethernet, RS-232)
  • rinsing air for protecting laser and detector in optical cell
  • internal sensor for temperature (T) and relative humidity (RH) in optical cell
  • total inlet flow (1.2 L/min) analyzed in optical cell
  • self-test of all optical and pneumatic components for highest quality standards

  • aerosol science
  • PM2.5 in indoor environments according to VDI 4300, part 11
  • Indoor Air Quality (IAQ) in buliding and vehicles process control in industry
  • workplace monitoring (inhalable, thoracic, respirable) according to EN 481
  • monitoring of Permissible Exposure Limit (PEL) with high time resolution
  • dust pollution measurements

  • measurement range : dust fractions (EN 481) inhalable, thoracic, respirable Enviro algorithm: TSP, PM10, PM4, PM2.5, PM1, PMcoarse | IAQ algorithm pm10, pm2.5 pm1 number concentration and size distribution
  • particle size range : 0.253 - 35.15 μm
  • size channels : 31 in total, equidistant
  • particle number : 0 - 3 000 000 particles/liter, diluter available for higher concentrations
  • dust mass : 0 μg/m3 - 100 mg/m3
  • reproducibility : >97% for total measuring range, according to ISO 21501-1

  • particle detection principle : light scattering at single particles with diode laser; detection volume aerodynamically focused, no border zone error
  • detector : fast signal processing, 2 x 16 raw data channels
  • time resolution : 6 s, 31 channels (selectable storage intervals 6 s, 1, 5, 10, 15, 30, 60 min) 1 s, 16 size channels (0.253 μm < Dp <2.982 μm < Dp < 35.15 μm)
  • volume flow rate : 1.2 L/min, ± 3% constant due to self-regulation, according to ISO 21501-1; automatic altitude correction
  • rinsing air : 0.4 L/min, protection for laser optics, reference air for self-test
  • gravimetric control : 47 mm PTFE filter

  • operation : keypad or PC with GRIMM software (wireless or data cable)
  • interfaces : Bluetooth, USB, Ethernet, RS-232, SD card
  • analog input : 1 port (0 - 10 V) for external sensors
  • power supply : in: 100 - 240 VAC, 47 - 60 Hz, out: 12 VDC, 2.5 A
  • power consumption : 5.4 W
  • battery : intelligent Li-lon-battery, 10.8 V, 6.8 Ah for minimum 8 h operation with desktop smart quick charger
  • dimensions : 27 x 13 x 7 cm / 10.5 x 4.8 x 2.6 inches (L x W x H)
  • weight : 2.1 kg / 4.6 lbs
  • operating conditions :  +4 to +40°C (39 - 104°F), RH < 95%, non-condensing, non-corrosive, or explosive gases
  • storage and transport : -20 to +50°C (-4 - 122°F), RH<95%