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ATM 230 Aerosol Generator

Atomizer Aerosol Generator ATM 230 for aerosol generation from liquids, compressed air operated, high mass flow rate

The Atomizer Aerosol Generator ATM 230 produces droplet aerosols with known properties according to the guideline VDI 3491-2.
Atomizer Aerosol Generator ATM 230, frontal view
Atomizer Aerosol Generator ATM 230, frontal view
The ATM 230 is designed as a serial instrument with an external compressed air supply. The liquid reservoir is arranged within the housing.

The ATM 230 provides a high aerosol output. Its design and technical solution warrants highly constant particle size distributions as well as particle concentration with high reproducibility.

The ATM 230 is able to aerosolise various liquids, for example PAO (Emery 3004), DEHS, salt solutions, PSL-standards suspensions.

Standards

VDI 3491-2
VDI 4258-1
ISO 21083-1
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Benefits

  • polydisperse aerosol, mainly below 1 μm (DEHS)
  • excellent stability in generation of particle size distribution and particle concentration
  • suitable to produce PSL aerosols
  • by variation of the nozzle pressure, the particle production rate can be adjusted in a wide range

Applications

  • testing of HEPA and ULPA filters and filter media
  • acceptance tests of large cleanroom facilities
  • visualisation of air flows (tracer particles)

The atomizer is the core component of the ATM 230. It is made of high quality stainless steel and works as a two-stream nozzle, based on the injection principle. The atomizer is equiped with a impaction plate that serves for removal of coarse droplets.

Parameter titleUnitValue
setting parameter - system pressure
setting range bar max. 6
setting resolution - continously adjustable
setting method - manual
aerosol, volumetric flow rate L/h 500 ... 2500
aerosol, mass flow rate (aerosol substance) g/h max. 20
operating medium, aerosol substance - pure liquids (DEHS, PAO, ...), solutions (NaCl, KCl, ...), suspensions (PSL, A1, ...)
operating medium, aerosol substance - filling volume mL 100 ... 500
operating medium, gas/air - dry, particle-free air or pressurised inert gas
operating medium, gas/air - compressed air supply bar max. 8
environmental condition, max. counterpressure kPa 20
hose connector, outlet mm Ø 19 (outer diameter)
dimensions (w × h × d) mm 230 × 225 × 380
weight kg 3,9
  • aerosol substance DEHS
  • further aerosol substances e.g. PAO (Emery 3004) on request
  • upgrade kit for operation with salt solutions
  • Eisenlöffel L., Reutter T., Horn M., Schlegel S., Truyen U. and Speck S. Impact of UVC-sustained recirculating air filtration on airborne bacteria and dust in a pig facility Plos One 14 (2019) 11, e0225047
    dx.doi.org/10.1371/journal.pone.0225047
  • Amiri M., Sadighzadeh A. and Falamaki C. Experimental Parametric Study of Frequency and Sound Pressure Level on the Acoustic Coagulation and Precipitation of PM2.5 Aerosols Aerosol Air Qual. Res. 16 (2017) 12, 3012 - 3025
    dx.doi.org/10.4209/aaqr.2015.12.0683
  • Wenke C., Pospiech J., Reutter T., Truyen U. and Speck S. Efficiency of different air filter types for pig facilities at laboratory scale Plos One 12 (2017) 10, e0186558
    dx.doi.org/10.1371/journal.pone.0186558
  • Wyche K. P., Ryan A. C., Hewitt C. N., Alfarra M. R., McFiggans G., Carr T., Monks P. S., Smallbone K. L., Capes G., Hamilton J. F., Pugh T. A. M. and MacKenzie A. R Emissions of biogenic volatile organic compounds and subsequent photochemical production of secondary organic aerosol in mesocosm studies of temperate and tropical plant species Atmos. Chem. Phys. 14 (2014) 23, 12781 - 12801
    dx.doi.org/10.5194/acp-14-12781-2014
  • Tschiersch J., Shinonaga T. and Heuberger H. Dry deposition of gaseous radioiodine and particulate radiocaesium onto leafy vegetables Sci. Total Environ. 407 (2009) 21, 5685 - 5693
    dx.doi.org/10.1016/j.scitotenv.2009.06.025
  • Shannon D. W. and Morris S. C. Experimental investigation of a blunt trailing edge flow field with application to sound generation Experiments in Fluids 41 (2006) 0, 777.788
    dx.doi.org/10.1007/s00348-006-0200-3

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