Description
The Palas UGF 2000 incorporates an adjustable binary nozzle for the adjustment of the desired mass flow and a cyclone. Unlike the AGF series, the Palas UGF 2000 has a cyclone with built-in control air. The control air is adjusted using a micrometer screw on a needle valve. By opening this valve, the aerosol concentration is able to be reduced by a factor of approximately 500 through the addition of control air. As a result, the generator is ideally suited for testing laminar flow boxes and clean rooms with low volume flow.
The compressed air is supplied to a binary nozzle via a pneumatic on/off switch and an adjustable pressure regulator. The mist of droplets generated by the nozzle flows tangentially into a cyclone. Large particles are separated by centrifugal force and drip into a separate reservoir. The remaining droplets leave the cyclone via the so-called “immersion tube.” The size spectrum of these droplets is determined on the one hand by the primary droplet spectrum generated by the nozzle, but especially by the separation characteristics of the cyclone on the other hand.
Key Features
- dp max in MPPS range = 0.1 – 0.3µm
- 1 to 13 LPM flow rate
- Mass flow (particles) 1.5 g/h (DEHS)
- 70 ml filling quantity
- Particle material: DEHS, DOP, Emery 3004, paraffin oil, other non resinous oils
- Known and reproducible particle size distribution using a cyclone
- Constant particle rate
- Low particle concentration
- Long dosing time
- Variable particle concentration by a factor of 500 through adjustment of the primary pressure and control air
- Compact, light and portable
- Easy handling and solid construction
Typical Applications
- Cleanroom HEPA / ULPA filter testing
- Acceptance tests and leak tests as per ISO 14644 and VDI 2083
- Laminar flow boxes
- Recovery tests
- Filter testing
- Quality control
- Filter cartridges, filter media, particulate air filters for low volume flows and small filter surfaces
- Smoke detector testing
Standards
- VDI 2083
- VDI 3491
- ISO 14644
