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

- Model 5705 & 5706 SMPS+E - Scanning Mobility Particle Sizer and Aerosol Electrometer

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The GRIMM SMPS+E systems feature the Vienna-type DMA design (Winklmayr et al., 1991; Reischl et al., 1997), well known for highest size resolution and lowest particle diffusional losses – even for the smallest particles – with a Faraday Cup Electrometer (FCE) as detector. The SMPS+E systems include the GRIMM 5706 DMA controller and the GRIMM 5705 fast and low noise FCE and can be operated at aerosol inlet flow rates of 1 - 5 L/min and sheath flow rates of 3 - 20 L/min. GRIMM offers a flexible design of the Vienna-type DMA with three electrodes of different length to accommodate a variety of experimental needs. GRIMM’s unique FCE design applies a rinsing air flow around the insulator of the Faraday Cup to minimize effects of leakage currents due to internal particle contaminations. The instrument is optimized to reduce the effects of mechanical shocks and pressure differences, enabling the SMPS+E as a reference instrument for the calibration of nano particle counters.

  • particle size distribution from 0.8 – 1094 nm
  • three Vienna-type DMAs
  • sample flow rate: 1 - 5 L/min
  • sheath flow rate: 3 - 20 L/min
  • rugged, compact and reliable
  • fully automated use with our software
  • analog inputs for additional sensors
  • data sampling rate up to 16Hz
  • no consumables
  • operates with air and inert gases
  • comprehensive self-test for highest reliability

  • fundamental aerosol research
  • filter testing
  • environmental & climate studies
  • nanotechnology process monitoring
  • printer emission studies
  • inhalation & exposure studies
  • studies on atmospheric nucleation
  • studies on nanoparticle growth, coagulation & transport
  • engine exhaust studies
  • mobile aerosol studies
  • workplace monitoring

  • detector type : Faraday Cup Electrometer (FCE)
  • sensitivity : 0.1 fA at 1 Hz
  • noise : 0.35 fA
  • maximum current : ± 4000 fA
  • maximum particle concentration : 108 p/cm³
  • response time t10 - t90 : 200 ms
  • resistor : 1 TΩ
  • size range :
      • 0.8 – 1094 nm, depending on sheath flow rate:
      • S -  DMA    0.8 - 53 nm
      • M - DMA    5 – 350 nm
      • L -  DMA 10 – 1094 nm
  • size resolution : stepping mode: 45 - 255 channels
  • scanning mode: 64 channels per decade
  • logarithmic spacing

  • DMA dimensions :
    • Ri = 26 mm, Ro = 40 mm
    • L= 15 mm (S), 88 mm (M), or 350 mm (L)
  • output HV module : 5 – 10 000 V positive polarity negative polarity on request
  • flow rate sample air : 1 – 5 L/min
  • flow rate sheath air : 3 – 20 L/min
  • flow rate rinsing air : 0.6 L/min
  • port for sensors : yes

  • ambient temperature : 0 to 40°C (32 to 104°F)
  • ambient humidity : 0 to 95% RH, non-condensing
  • absolute pressure range : 600 - 1100 mbar
  • power supply : 85 - 264 VAC, 47 - 440 Hz
  • power consumption : 80 - 130 W
  • interfaces : USB or RS-232
  • dimensions DMA (h x w x d) :
    • S –  DMA: 16.1 x 14 x 15.6 cm   (6.3 x 5.5 x 6.1 in)
    • M – DMA: 23.4 x 14 x 15.6 cm   (9.2 x 5.5 x 6.1 in)
    • L –  DMA: 47.8 x 14 x 15.6 cm (18.8 x 5.5 x 6.1 in)
  • weight DMA :
    • S – DMA: 5.6 kg (12.2 lbs)
    • M - DMA: 5.7 kg (12.6 lbs)
    • L -  DMA: 7.9 kg (17.3 lbs)
  • dimensions FCE (h x w x d) : 19 x 9 x 9 cm (7.5 x 3.5 x 3.5 in)
  • weight FCE : 1.36 kg (3.0 lbs)
  • dimensions DMA controller (h x w x d) : 31 x 25.5 x 22 cm (12.2 x 10.0 x 8.7 in)
  • weight DMA controller : 12.2 kg (26.9 lbs)

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