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Dekati - Model ELPI -High Temperature Impactor
The Dekati High Temperature ELPI+ (Electrical Low Pressure Impactor, HT-ELPI+) is a unique version of the Dekati ELPI+ that enables real-time measurement of particle size distribution from 6 nm up to 10 μm with 10 Hz sampling rate. The High Temperature ELPI+ allows direct measurement of up to 180 °C high temperature aerosol samples without the need to cool the sample, which makes the HT-ELPI+ a one of a kind tool to characterize high temperature aerosols. Additionally, the HT-ELPI+ has all the benefits of the Dekati ELPI+ system including real-time standalone operation, wide sample concentration range, wide particle size range and robust structure for operation even in harsh conditions.
The use of impactor technology enables post-measurement chemical analysis of the size classified particles. In addition, the HT-ELPI+ can be used for real-time particle charge distribution and gravimetric measurements. All these features make the HT-ELPI+ an ideal choice for characterization of high temperature aerosols.
- Wide particle size range 6 nm – 10 µm with one single instrument and one measurement method
- Real-time (10 Hz) data on particle number, active surface and mass concentration and size distribution
- Enables also measurement of particle charge size distribution
- 14 particle size fractions, 500 with optional High Resolution ELPI®+ software
- Temperature range 10-180 °C allowing direct measurement of high temperature aerosols
- Possibility to collect size classified particles for chemical analysis using analysis collection plates
- Possibility for long-term maintenance free measurements with sintered collection plates
- Wide operational concentration range
- Two integrated temperature controllers
- 1.5 m heated sampling line provided with the unit and temperature controlled with the secondary integrated digital control unit
- Improved sensitivity as no dilution systems are needed
- Insensitivity to variations in sample pressure
- Several data saving options including analogue inputs and outputs
High Temperature ELPI®+ is a unique instrument capable of measuring properties of high temperature aerosols without dilution or a sample conditioning unit. This enables accurate measurements without the risk of sample transformations and even when sample particle concentrations are very low. Typical applications for the HT-ELPI®+ include:
- Combustion process studies and emission measurements
- Development and optimization of stationary source emission cleaning devices
- Development of engine emission after-treatment devices
- On-board engine emission measurements
- Blow-by gas emission measurements
- Particle transformation studies and general particle research