氣膠分析儀

Welas

The new welas® digital is a flexible, powerful and economical light‐scattering spectrometer system, which determines the particle concentration and the particle size precisely and reliably. Using fibre‐optic cables, welas® sensors – equipped with measurement volumes of varying sizes – can be easily attached to the welas® digital 2000 and 3000 and exchanged at will. These sensors make possible a reliable measurement in the concentration range from <1 P/cm3 to 106 P/cm3. The sensors are available for measurements in gases as well as in liquids. Please refer to the datasheet “welas® sensors”. Temperature range sensors: from ‐90 °C to +70 °C (standard) optional up to 250°C; (higher upon request) Pressure range sensors: optional up to 10 bar overpressure (higher upon request) The welas® digital is based on the light‐scattering analysis of the individual particle. In the new welas® digital, the particular advantages of the well‐known and internationally proven welas® system are combined with a new and quick digital individual signal processing and coincidence correction is made possible. The best classification accuracy and the best size resolution regarding the particle size are guaranteed by the following characteristics (see Diagram 1):

  • White light and 90° light‐scattering detection  Clear calibration curve
  • Patented T‐aperture  No border zone error
  • New digital individual signal processing  Coincidence detection and correction at the individual signal making it possible to measure up to a factor of 5 above the max. concentration limit of each sensor.

Promo

Promo® is a light-scattering spectrometer system for particle size analysis and concentration determination that can be equipped with all welas® sensors . Using fibre-optic cables, welas® sensors – equipped with measurement volumes of different sizes – can be easily attached to the Promo® 2000 and Promo® 3000 and exchanged at will. These sensors make possible a reliable measurement in the concentration range from <1 P/cm3 to 106 P/cm3. The sensors are available for measurements in gases as well as in liquids. Please refer to the datasheet “welas® sensors”. A touch display ensures user-friendly operation. Measurements can be started easily, and all data, such as the current number distribution and the number concentration, as well as 24 further statistical values, can be evaluated and displayed in real time. Promo® can be operated as a stand-alone measurement device (i.e. without external pc) for continuous measurement. All incoming data can be stored with a max. temporal resolution of 1 second. Promo® can thus autonomously measure for weeks and store the generated data. For data transfer, Promo® can also be integrated into a company network. Optionally, a printer can be connected as data recorder. Promo® has a standard interface and can be controlled by a process control system or by a simple Labview program. Promo® is therefore particularly suitable for control and monitoring applications. For this device, Palas® offers remote maintenance and data access via www.palas.de/user.

Fidas mobile

The Fidas&reg; mobile is designed as a portable handheld device with battery or mains operation. It simultaneously measures the environmental mass fractions PM1, PM2.5, PM4, PM10, TSP or the indoor mass fractions respirable, thoracic, and inhalable according to DIN EN 481. In addition it also reports the particle number and &ndash; if desired &ndash; the particle size distribution in up to 64 size classes in the particle size range of 0.18 &ndash; 18 &mu;m. For continuous measurements, a time resolution from one second to hourly or daily mean values can be set. The Fidas&reg; mobile is equipped with a data logger with 4 GB Compact Flash memory and WLAN support. The firmware supports complete remote access with remote maintenance, and optional data storage via www.palas.de/user. Furthermore the Fidas&reg; mobile can be equipped with additional sensors for detecting the ambient conditions, temperature, air pressure and relative humidity. For emission measurements in exhaust ducts, the Fidas&reg; mobile can be connected to an isokinetic sampling probe.
Subscribe to 氣膠分析儀