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The DLPI+ is a 14-stage cascade impactor that is used to determine airborne particle mass size distribution. The DLPI+ classifies and collects particles into 14 size fractions in the range of 16 nm – 10 μm. In each size fraction, the particles are collected on 25 mm collection substrates that are weighed before and after the measurement to obtain gravimetric size distribution of the particles. A chemical analysis of the size classified particles can also be performed. The DLPI+ impactor can be used in various particle measurement applications and can the high temperature version of the DLPI+ can also be heated up to 180 °C for direct sampling of high temperature aerosols. Since the DLPI+ impactor has the same design as the impactor used in the Dekati ELPI+ (Electrical Low Pressure Impactor), it can easily be upgraded into a full ELPI+ system for real-time particle size distribution measurements.
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Detailed Specs
- Gravimetric particle size distribution 16 nm – 10 μm
- 14 size fractions, uppermost stage collects >10 μm particles
- 10 lpm sample flow rate
- Particle collection area Ø25 mm
- Integrated impactor low pressure (40 mbar) measurement and adjustment, no flow control needed
- Well characterized impactor with low inter-stage particle losses
- Can be upgraded into a complete ELPI®+ (Electrical Low Pressure Impactor) system for real-time data
- Provided with a data processing spread sheet
- Stainless steel stages for operation even in harsh environments
- Standard DLPI+ for up to 50 °C measurements
- Sampling from up to 180 °C with the High Temperature DLPI+
- Each unit manufactured and calibrated in Finland
- Complete measurement solutions available for different applications
