High Temperature HR-ELPI®+

The Dekati^® High Temperature HR-ELPI^®+ (Electrical Low Pressure Impactor, HT-ELPI^®+) is a unique upgrade of the Dekati^® HR-ELPI^®+. The High Temperature HR-ELPI^®+ allows direct measurement of up to 180 °C high temperature aerosol samples without the need to cool the sample, which makes the HT-HR-ELPI^®+ a one of a kind tool to characterize high temperature aerosols.

Additionally, the HT-HR-ELPI^®+ has all the benefits of the Dekati^® HR-ELPI^®+ system including real-time standalone operation, wide sample concentration range from 6 nm up to 10 μm 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-HR-ELPI^®+ can be used for real-time particle charge distribution and gravimetric measurements. All these features make the HT-HR-ELPI^®+ an ideal choice for characterization of high temperature aerosols.

Features

Wide particle size range 6 nm – 10 μm with one 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 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

Application

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
Blow-by gas measurements
Particle transformation studies and general particle research
On-board engine emission measurements
Development of engine emission after-treatment devices