welas® digital 3000 HP

With automatic regulation of sampling volume flow by the aerosol sensors welas® under overpressure up to 10 bar or in temperatures to 120 °C

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welas digital 3000

welas® digital 3000 HP

With automatic regulation of sampling volume flow by the aerosol sensors welas® under overpressure up to 10 bar or in temperatures to 120 °C

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 HP, 2100 HP, 2200 HP, 2300 HP and welas ® 2500 HP are equipped with a cuvette heatable up to 120 °C and pressure-tight up to 10 bar to ensure isobaric and isothermal sampling into the sensor's measurement volume.

The welas® digital is usually calibrated for the operating volume flow. As the operating volume flow changes with pressure and temperature, it is advantageous for the user if automatic volume flow regulation for the sampling volume flow is provided for in the device.

In the welas® digital 3000 HP the pressure and temperature of the carrier gas are measured and the required operating volume flow is automatically set to 5 l/min.

Includes:

  • Mass flow controller for volume flow regulation
  • Heating regulator up to 120 °C
  • Temperature sensor
  • Absolute pressure capsule
  • Filter unit

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 ≤ 120°C, ≤ 10 bar
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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