Welas and Promo 2000
Most Versatile

CH Technologies' Welas and Promo 2000 Series are the most versatile of the Welas and Promo families. Manufactured by Palas GmbH, these white light spectrometers feature the state-of-the-art particle counting technologies found in all of our spectrometers and are executed with the high quality standards for which Palas is known.

The 2000 series was designed to provide the most flexible system available. The 2000 Series sensor can be placed up to 50 meters away from the control unit with virtually no loss in measurement accuracy. This capability is made possible by Palas' proprietary lightwave cables. The integrated touch screen in the Promo units makes it ideal for a real time particle monitoring system for industrial or lab settings.

  • White light measurement allows for higher resolution size classification than monochromatic light
  • T-aperture™ technology allows for detection of particles that pass partially through the border-zone of the device
  • Time of flight analysis corrects for possible coincidence measurement of particles
  • Concentration measurements up to 1,000,000 particles per cc
  • Measurement range from 200 nm to 100 um
  • Measurements as often at every 10 ms (Welas only)
  • User can clean and calibrate without returning to manufacturer
  • Filter media tests
  • Filter loading
  • Inhalation studies
  • Dynamic chamber studies
  • Welas 2000
  • Welas 2000H – for temperatures up to 250° C
  • Welas 2000P – for pressures up to 10 bar
  • Welas 2000HP – for 120° C and 10 bar

  • Promo 2000
  • Promo 2000H – for temperatures up to 250° C
  • Promo 2000P – for pressures up to 10 bar
  • Promo 2000HP – for 120° C and 10 bar


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