welas® digital 3000 H

With heating regulation up to 250 °C for welas® aerosol sensors

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welas digital 3000

welas® digital 3000 H

With heating regulation up to 250 °C for welas® aerosol sensors

Description

Depending on the composition of the aerosol to be measured, i.e. the carrier gas component and the particle material, pressure and temperature changes in the carrier gas can significantly influence the particle size distribution, e.g. due to condensation or evaporation.

For this reason, the aerosol sensors welas ® 2070 H, HP, 2100 H, HP, 2200 H, HP, 2300 H, HP and welas ® 2500 H, HP are equipped with a heatable and, as required, pressure-tight cuvette to ensure isobaric and isothermal sampling into the sensor's measurement volume.

The welas® digital 3000 H model variant also offers heating regulation for temperatures up to 250 °C for the aerosol sensors with heatable cuvette.

The welas® digital is usually calibrated for the operating volume flow. In the welas® digital 3000 H version, regulation of the sampling volume flow is performed independently by the customer taking the temperature and pressure into consideration.

Benefits

  • Measuring range of 0.2 to 100 µm (4 measuring ranges selectable in one device)
  • Up to four measuring ranges in only one device:
    • 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)
  • Up to 128 size channels per measuring range
  • Concentration range of 1 particle/cm3 up to 106 particles/cm3
  • Calibration curves for different refractive indices
  • Very high and reproducible counting efficiency rate starting at 0.2 µm (see Graph 2)
  • High temporal resolution down to 10 ms
  • Optical fibre technology
  • Measurement in potentially explosive environment
  • Long service life of the light source of 2000 h
  • Extensive PDControl
  • Simple operation
  • Calibration, cleaning and lamp replacement can all be performed independently by the customer
  • Low maintenance
  • Reliable function
  • Reduces your operating expenses

Datasheet

Measuring principle Optical light-scattering
Measurement range (number CN) < 1 • 106 particles/cm3
Measurement range (size) 0.2 – 10 µm, 0.3 – 17 µm, 0.6 – 40 µm, 2 – 100 µm
Size channels Max. 64/decade
Volume flow 5 l/min
Time resolution ≥ 10 ms
Thermodynamic conditions
≤ 250°C, -100 – 50 mbar
Data acquisition Digital, 20 MHz processor, 256 raw data channels
Light source Xenon arc lamp 35 W
User interface Laptop
Housing Table housing, optional: with mounting brackets for rack-mounting
Weight Control unit: approx. 18 kg, sensor: approx. 2.8 kg
Software PDControl
Installation conditions +5 – +40 °C (control unit)
Interfaces USB
Power supply 115 – 230 V, 50/60 Hz
Dimensions 185 • 450 • 315 mm (H • W • D) (19")

Applications

  • Abscheidegradbestimmung von KFZ Innenraumfiltern, Motorluftfiltern, Raumluftfiltern, Druckluftfiltern, Staubsaugerfiltern, abreinigbaren Filtern, Elektrofiltern, Ölabscheidern, Kühlschmierstoffabscheidern, Nassabscheidern, Zyklonen und anderen Abscheidern
  • Isotherme und isobare Partikelgrößen- und Mengenbestimmung, z. B. in der Automobil-, Chemie-, Pharma- und Lebensmittelindustrie
  • Untersuchung schneller, instationärer Prozesse
  • Test von Rauchmeldern
  • Partikelmessung zur Wolkenbildung
  • Emissionsmessungen
  • Atemfunktion: Inhalat / Exhalat (Partikelgröße und -anzahl)

Downloads

Brief Description
Brief product description in two-pages as PDF
Product Description
Detailed product description as PDF

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