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ATM 222

Atomizer Aerosol Generator ATM 222 for aerosol generation from liquids, compressed air operated, pneumitic-controlled, remote controllable

The aerosol generator ATM 222 combines selected technical features of the generators ATM 220 and ATM 228 for long-term stable generation of test aerosols, calibration aerosols or process aerosols from pure liquids (oils like DEHS or PAO, water), solutions (salt solution, sugar solutions) and suspensions (A2, PSL). The generator complies to all requirements of VDI 3941-2.
Atomizer Aerosol Generator ATM 222 frontside Atomizer Aerosol Generator ATM 222 backside Atomizer Aerosol Generator ATM 222 frontside Assembly instruction nozzle ATM 222 Atomizer Aerosol Generator ATM 222 frontside
The generator can be operated via a pneumatic coupling plug by compressed air or other pressurised technical inert-gases (e.g. with N2, CO2). For the purpose of a reproducible and long-term stable aerosol generation, the operational air flow is controlled via the pressure drop over the nozzle. This allows also a reproducible and stable operation of the generator even at very low air flow rates and thus also at lowest particle production rates.

Standards

VDI 3491-2
VDI 4258-1
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Benefits

  • stable aerosol generation even at low flow rates
  • safe and reproducible adjustment of operating points
  • remote control via serial interface (optional)
  • low noise operation via compressed air or other technical inert-gases (e.g.: nitrogen, carbon dioxide)

Applications

  • aerosol generation from pure liquids, solutions and suspensions
  • fractional efficiency testing of filter media and filter elements
  • generation of long-term stable test and process aerosols
  • calibration and validation of particle measurement techniques

For the dispersion of the substance to be aerosolised, the ATM 222 is equipped with a two-substance nozzle designed by the Topas GmbH. The nozzle is operated within or above the aerosol substance (submerged or non-submerged operation mode) and consists of two inlet ports for the supply of air as well as aerosol substance and one outlet port for the generated primary aerosol.

The supply of a defined air flow rate causes a negative pressure at the nozzle inlet port for the aerosol substance. The aerosol substance flows thus into the dispersion zone of the nozzle, where aerosol substance and gas flow converge and form a droplet.

Parameter title Unit Value
aerosol, distribution width (geometric standard deviation) - 1,8 ... 2,2 (polydispers)
aerosol, particle size range µm 0,01 ... 5
setting resolution hPa 1
aerosol, particle production rate #/s 4,0 × 10⁰⁶ ... 1,4 × 10¹⁰
aerosol, mass flow rate (aerosol substance) g/h max. 1,4
aerosol, volumetric flow rate L/h 20 ... 250
setting range hPa 0 ... 5000
setting parameter - differential nozzle pressure
operating medium, gas/air - compressed air supply bar max. 6
operating medium, aerosol substance - pure liquids (DEHS, PAO, paraffine oil, ...), solutions (NaCl, KCl, ...), suspensions (PSL, A1)
operating medium, aerosol substance - filling volume mL 10 ... 80
operating medium, gas/air - particle free, dry compressed air or pressurised inert gas
power supply - 12 V DC; 0,5 A
environmental condition, temperature °C 0 ... 50
environmental condition, max. counterpressure kPa 20
hose connector, outlet mm Ø 8 (outer diameter)
dimensions (w × h × d) mm 300 × 120 × 195
weight kg 3,0

Silimar products

ATM 220

Atomizer Aerosol Generator ATM 220 for aerosol generation from liquids, compressed air operated, base model with broad operational range

Atomizer Aerosol Generator ATM 220 frontside
detail view

ATM 210

Atomizer Aerosol Generator ATM 210 for aerosol generation from liquids against counter pressure up to 10 bar, compressed air operated, moderate mass flow rate

Atomizer Aerosol Generator ATM 210, front view
detail view

ATM 211

Atomizer Aerosol Generator ATM 211 for aerosol generation from liquids against counter pressure up to 10 bar, compressed air operated, corrosion-resistant

Atomizer Aerosol Generator ATM 211, front view
detail view

ATM 230

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

Atomizer Aerosol Generator ATM 230, frontal view
detail view

ATM 221

Atomizer Aerosol Generator ATM 221 for aerosol generation from liquids, compressed air operated, base model with submerged nozzle

Atomizer Aerosol Generator ATM 221, front view
detail view

ATM 240/L

Atomizer Aerosol Generator ATM 240/L for aerosol generation from liquids, compressed air operated, high mass flow rate, ideal for PSL aerosols acc. ISO 29463

Atomizer Aerosol Generator PSL ATM 240/L, front view
detail view