Apart from fine particles, Palas® has also been engaged in nanoaerosol measurement with condensation technique to enlarge the ultrafine particles for quantification. The principle of operation of our new condensation particle counter and its associated advantages have been patented.
Palas® have succeeded in developing measurement systems for determining the particle concentration and particle size of nanoscale particles within the size range of approx. 2 to 1000 nm. These measuring devices provide special advantages with respect to accuracy, use and reliability.
|Usage/Application||Aerosol research,Environmental and climatic studies,inspection of filter/filter media etc.|
|Features||Universally connects to DMAs and nanoparticle counters from other manufacturers.|
|Particle Size Range||Approx. 8 - 1,200 nm (depends on various models available)|
|Number Concentration||Approx. 0 - 10^8 particles/cm3 (depends on various models available)|
|Size Channels||up to 256 (128/decade)|
|Volume Flow||2.5 - 14 l/min|
Palas® universal scanning mobility particle sizer (U-SMPS) is available in two versions. The long classifying column is able to reliably determine particle size distributions from 8 to 1,200 nm and concentration of aprox. 10^8 particles/cm^3 with high resolution such as 128 size channels per decade.
The U-SMPS system includes a classifier [defined in ISO 15900 as a differential electrical mobility classifier (DEMC) also known as a differential mobility analyzer (DMA)], in which aerosol particles are selected according to their electrical mobility and passed to the outlet. These particles are then counted by a condensation particle counter UF-CPC which is available in three models.
|Brand||Palas GmbH, Germany|
|Usage/Application||Aerosol research, Environmental and climatic studies, inspection of filter/filter media etc.|
|Features||Novel patented working fluid delivery system (German patent no.: DE 10 2005 001 992 A1)|
|Particle Size Range||Approx. 4 - 10,000 nm (depends on various models available|
|Number Concentration||Approx. 0 - 2 x 10^6 particles/cm3 (Single count mode)(depends on various models available)|
|Accuracy||Approx. +/- 5% (Single count mode) (Single count mode)(depends on various models available)|
|Response Time||Approx. t90 = 2.8 s, t90-10 = 2.0 s (Single count mode) (depends on various models available)|
Palas® universal fluid condensation particle counter UF-CPC is optimized for specific concentrations. It measures the total particle concentration of ultrafine and nanoparticles suspended in air or other carrier gases from a range of 4 nm to 10,000 nm with the highest resolution of 256 raw data channels and concentration upto 2 x 10^6 particles/cm^3 in single count mode.
In addition to their number, it also measures the size of the droplets and provides the user with additional information concerning the condensation process. This novel and patented (German patent no.: DE 10 2005 001 992 A1) working fluid delivery system provides greater flexibility. The user is no longer limited to butanol or water but may also opt for more environmentally friendly or better suited working liquids for special applications, in addition to the butanol and water. In addition, the modularity of the components enables the user to perform most maintenance tasks (e.g. cleaning, pump replacement).
|Usage/Application||Calibration of condensation particle counters (CPC), Classification of monodisperse particle source|
|Features||Universally connects to CPCs and aerosol electrometers from other manufacturers|
|Brand||Palas GmbH, Germany|
|Classifying Size Range||Approx. 4 - 1400 nm (depends on various models available)|
|Size Channels||Upto 256 (128/decade)|
|Impactor||Nozzle for 3 different cut-offs|
|Volume Flow||Approx. 2.5 - 14 l/min (depends on various models available)|
Palas ® DEMC size classifier (as defined in ISO 15900) selects and classifies aerosol particles based on their electrical mobility and directs them to the outlet from a range of 4 nm to 600 nm. Accurate size determination and reliable performance of the DEMC are extremely important especially for calibration set-ups.
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