The Promo® aerosol spectrometer system was specially 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 are 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 equipped with an easy-to-operate integrated PC with touchscreen.By means of various interfaces, such as Modbus, Promo® can be integrated in process control systems and operated with external software.Unique in the world: The broad spectrum of easily exchangeable welas®
aerosol sensors enable 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 in temperatures of -120 °C to 470 °C. Calibration can be performed on-site independently by the customer! Differences of Promo®models Promo® 1000
Promo® 2000
Promo® 3000
Measurement range (size) 0,12 µm – 3,5 µm,
0,2 µm – 10 µm,
0,3 µm – 17 µm,
0,6 µm – 40 µm 0,2 µm – 10 µm,
0,3 µm – 17 µm,
0,6 µm – 40 µm,
2 µm – 100 µm 0,2 µm – 10 µm,
0,3 µm – 17 µm,
0,6 µm – 40 µm,
2 µm – 100 µm Measurement range (number CN) < 5 • 105 particles/cm3 < 1 • 106 particles/cm3 < 1 • 106 particles/cm3 Time resolution
up to 1 s
up to 1 s Volume flow 5 l/min, 1.6 l/min
5 l/min
5 l/min 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
