INDOOR WRAS – INDOOR WIDE-RANGE AEROSOL SPECTROMETER

For high resolution particle measurements in laboratories covering a particle size range of 5 nm … 35 μm. Combines two technologies: SMPS+C for nanoparticles and the portable optical aerosol spectrometer 11-D for dust particles.

Description

Functionality: Combination of mobility particle size spectrometer and optical aerosol spectrometer

 

Features:

  • Real-time monitoring of the entire particle size range
  • High precision with CPC and OPC at low and high concentrations
  • Excellent counting statistics and reproducibility
  • Low diffusion losses
  • Self-test of all optical and pneumatic components for high quality standards
  • Instrument parameters secured against data loss

 

Benefits:

  • Laboratory desktop setup
  • Fast and easy change of particle size ranges with different DMAs
  • Various DMAs available
  • Customizing possible

 

Applications:

  • Monitoring of ultrafine particles and dust
  • Aerosol science
  • Workplace monitoring

 

Technical Data

SMPS+C

Measurement principle Electrostatic classification with subsequent detection by condensational growth
Particle size range Selectable:M – DMA: 5 … 350 nmL – DMA: 10 … 1,094 nm
Particle size resolution Stepping mode: 45 – 255 channelsScanning mode: 64 channels per decadeLogarithmic spacing
Minimum scan time 150 s
Max. concentration single count mode 150,000 particles/cm3
Max. concentration photometric mode 107 particles/cm3
Reproducibility > 95% for single count mode> 90% for photometric mode
Working fluid n-butanol (n-butyl alcohol)

 

Optical aerosol spectrometer

Measurement principle Light scattering at single particles Detection volume aerodynamically focused, no border zone error
Particle size range 0.253 … 35.15 μm
Number of size channels 31, logarithmic equidistant
Concentration range 1 … 3,000,000 particles/l
Reproducibility > 97% for single count mode
Sample air flow rate SMPS+C: 0.3 l/minCPCFlow control with critical orifice, temperature stabilized
Sample air flow rate 11-D: 1.2 l/minAerosol spectrometer±3% constant due to self-regulation
Operation Wide range aerosol spectrometer software 5478 for online data presentation
Interfaces RS-232, USB, Ethernet, Bluetooth
Power supply SMPS+C: 85 … 264 VAC, 47 … 440 Hz
Optical aerosol spectrometer 100 … 240 VAC, 47 … 60 Hz, out: 13 VDC530 … 1,100 mbarFlow rate automatically adjustable to pressure
Temperature range 10 … +35 °C (50 … 95 °F)RH < 95%
Pressure range SMPS+C: 600 … 1,100 mbar