Promo® System

Aerosol spectrometer system for process measurement technology and monitoring applications with continuous measurement

Powerful scattered-light aerosol spectrometer system for particle measurement from 120 nm
Scattered-light aerosol spectrometer system for process measurement technology and monitoring applications with light wave conductor technology
Scattered-light aerosol spectrometer system for process measurement technology and monitoring applications with two sensors for quasi simultaneously measurements

The Promo® aerosol spectrometer system was developed for continuous process monitoring and is based on the welas® digital technology. Besides particle size distribution and particle concentration, up to 36 static distribution parameters are continuously measured with a minimum temporal resolution of 1 s.

Unique is up to four measuring ranges in only one device:

  • 0.12 µm – 3.5 µm (additionally in welas® 1000 and Promo® 1000)
  • 0.2 µm – 10 µm
  • 0.3 µm – 17 µm
  • 0.6 µm – 40 µm
  • 2 µm – 100 µm (additionally for sensors 2300 and 2500).
welas® digital system and Promo® system are famous for up to 128 size channels per measuring range and a concentration range from < 1 particle/cm3 to 106 particles/cm3.

Promo® is a standalone measuring device with an easy-to-operate integrated PC with a touchscreen.

Using various interfaces, such as Modbus, Promo® can be integrated into process control systems and operated with external software.

Unique in the world: The broad spectrum of easily exchangeable welas® aerosol sensors enables perfect matching of the measurement technology with the particle spectrum (120 nm to 100 µm) to be measured in particle concentrations of < 1 particle/cm3 up to 106 particles/cm3, also in overpressure up to 10 barg and temperatures of -120 °C to 470 °C.

Calibration can be performed on-site independently by the customer!

Differences between Promo®models

  Promo® 1000
Promo® 2000
Promo® 3000
Measurement range (number CN) < 5 • 105 Partikel/cm3 < 1 • 106 Partikel/cm3 < 1 • 106 Partikel/cm3
Measurement range (size) 0.12 – 3.5 µm, 0.2 – 10 µm, 0.3 – 17 µm,
0.6 – 40 µm
0.2 – 10 µm, 0.3 – 17 µm, 0.6 – 40 µm, 2 – 100 µm 0.2 – 10 µm, 0.3 – 17 µm, 0.6 – 40 µm, 2 – 100 µm
Volume flow 5 l/min, 1.6 l/min 5 l/min 5 l/min
Time resolution ≤ 1 s ≤ 1 s
Light source Xenon Hochdrucklampe 75 W Xenon arc lamp 35 W Xenon arc lamp 35 W
Software PDControl, FTControl PDControl, FTControl, PDAnalyze PDControl, FTControl, PDAnalyze

Receive updates on exciting products & valuable news!