Dekati - Model HT-DLPI+ -High Temperature Low Pressure Cascade Impactor

The HT-DLPI+ can be heated up to 180 °C allowing direct measurement of up to 180 °C aerosol samples without the risk of condensation or sample transformations. The impactor support and heater controller are all integrated into one easy-to-use unit, which also allows control and adjustment of the impactor low pressure and flow rate. The HT-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. Since the HT-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^®+ or High Temperature ELPI^®+ system for real-time particle size distribution measurements.

• Gravimetric or chemical analysis of the size classified samples
• Particle size distribution in 14 size fractions 16 nm – 10 μm
• 10 lpm sample flow rate
• Particle collection area Ø25 mm
• Well characterized impactor with low inter-stage particle losses
• Integrated impactor heater, heater controller and low pressure (40 mbar) measurement, no additional flow control needed
• Sampling from up to 180 °C
• Can be upgraded into a complete ELPI^®+/HT-ELPI^®+ system for real-time data
• Stainless steel stages for operation even in harsh environments

• Combustion process studies
• Engine exhaust measurements
• Blow-by gas emission measurements
• Nanoparticle measurements