Fine Particle Measurement Instruments

Real-time measurement

Dekati’s selection of real-time particle measurement instruments includes several instruments for particle concentration, particle size and size distribution, and particle charge level monitoring. Compare our particle measuring systems below.

ELPI®+

HR-ELPI®+

HT-ELPI®+

eFilter™ & DePS™

BOLAR™

Measured concentrationNumber, chargeNumberNumber, chargeChargeBi-polar charge
Calculated concentrationMass, LDSAMass, LDSAMass, number, LDSA
Particle size range6nm-10µm6nm-10µm6nm-10µm4nm-3µm, lower cut adjustable 4-15nm0-11.57µm (@60 lpm)
Size distributionYesYesYesNoYes
Number of particle size
classes
14100 or 5001415
Sample flow rate, lpm10101010-10030-90
Max sample T, °C50*50*180*50*35
AdditionalSize classified particles collected for possible chemical analysisCan be used as an ELPI®+. Size classified particles collected for possible chemical analysisCan be used as an ELPI®+. Size classified particles collected for possible chemical analysisCombination of two measurements; gravimetric filter holder and real-time measurement**Size classified particles collected for possible analysis to get charge/mass ratio.

* Can be increased up to 600 °C when combined with Dekati® Sample Conditioning Instruments
** Not applicable for DePS

Gravimetric measurement

Gravimetric impactors are used to determine gravimetric size distribution of airborne particles. Dekati’s selection of gravimetric impactors includes four different impactors with different characteristics. All Dekati impactors are individually calibrated and manufactures of stainless steel to allow operation even in demanding environments.

DLPI+

HT-DLPI+

Dekati® PM10 Impactor

DGI

Particle size range16nm-10µm16nm-10µm< 10µm< 2.5 µm
Number of particle size
classes
141445
Number of impactor stagesFixedFixedAdjustableAdjustable
Sample flow rate, lpm101010 or 3050-100, adjustable
Max sample T, °C50*180*200*200*
Particle collection areaØ25 mmØ25 mmØ25 mm, smallest particle size fraction on Ø47 mm filterØ47 mm, smallest particle size fraction on Ø70 mm filter
AdditionalCan be upgraded to an ELPI®+/HT-ELPI®+/HR-ELPI®+Can be upgraded to an ELPI®+/HT-ELPI®+/HR-ELPI®+

* Can be increased up to 600 °C when combined with Dekati® Sample Conditioning Instruments