Palas 1700 series universal SMPS systems (scanning mobility particle sizer) are for high aerosol concentration measurements and they are available in two versions. With a short classification column these systems are especially well suited for extremely precise measurements of particle size distributions within the range of 2nm to 400nm. These systems includes a classifier as defined in ISO 15900 as a differential electrical mobility classifier (DEMC) which is also known in the industry as a differential mobility analyzer (DMA). The DEMC selects aerosol particles according to their electrical mobility and these are passed to the outlet. The electrical charges carried by these particles are then measured in a downstream Palas Charme aerosol electrometer or CPC (condensation particle counter) if used.
- Palas 1700 standard system
- Palas 1700-X which includes a soft x-ray ionization neutralizer
- Particle size distributions from 2nm to 400nm
- Suitable for concentrations of up to 10 to the power of 8 particles/cm3
- Large 7-inch color touch screen 800 x 600 Pixel display
- This model does NOT have the integrated X-Ray Ionization neutralizer
- Graphical display of the measurement values
- 256 high-resolution particle size channels
- 4GB onboard data storage with integrated data logging
- Can be used with or without a computer in the field or lab
- The user can select any size within the defined particle size range
- Universally connects to DMAs and nano particle counters from other manufacturers
- Continuous and fast-scanning principle of measurement
- USB, LAN, WLAN, WI-FI, AUX, RS232, RS485 communications
- Full remote access capabilities
- Includes advanced PD Analyze software platform
- Variable sheath air flow rate (2.5 – 14 LPM)
- Very low maintenance
- Highly reliable and easy to use
- German-made and high-quality construction
- Portable, can be used in the field
A major advantage of aerosol electrometers includes the fact that they enable very rapid measurements however this method requires a rather high number of charges. This limits the applicability to high aerosol concentrations (downstream from a combustion process or particle generator etc). The measurement of the charge per time unit (flow) is directly traceable to physical parameters. As a result, this method is primarily used as a reference during calibration of condensation particle counters.
Palas U-SMPS systems are operated using a graphical user interface on a touch screen. A single particle distribution scan can be performed in as few as 30 seconds or in up to 128 size channels per decade, during which the voltage in the DEMC classifier is varied continuously, resulting in higher count statistics per size channel. The integrated data logger allows linear and logarithmic display of the measured values on the device itself. The included advanced evaluation software provides various data evaluations (extensive statistics and averaging) and export capabilities.
These systems are typically operated as a stand‐alone device, however may also be connected to a computer or network using various interfaces (USB, LAN, WLAN, RS-232 / 485). The Palas U-SMPS universally supports DMAs, CPCs, and aerosol electrometers from other manufacturers. Accurate size determination and reliable performance of the U-SMPS are extremely important especially for calibrations. All components are required to pass strict quality assurance testing and are assembled in‐house
Unlike some competitive systems on the market, these latest generation units have large color touch screen displays and they can be used completely as a standalone device in the laboratory or field, without the need for a computer. They have 4GB of internal data storage and they can also work with a computer as required. They offer a wide range of communications interfaces and may be used with a variety of Palas CPC’s (condensation particle counters), DMA’s and other accessories. The Palas U-SMPS even universally supports DMAs, CPCs, and aerosol electrometers from other manufacturers.
- Filter testing
- Aerosol research
- Inhalation experiments
- Workplace measurements