Particle monitors are a portable plus

Grimm Aerosol Technik is a leading supplier of particle monitoring equipment with a wide choice of portable and fixed options.

Grimm Aerosol Technik is a leading supplier of particle monitoring equipment with a wide choice of portable and fixed options covering particles from 5nm to 20um in size and concentrations from 1 to 10G particle/litre.

Many commercially available dust monitors are designed for permanent installation, but the portability that has been a key design requirement of the Grimm instruments makes them ideal for field applications - the 1100 series are the world's smallest battery powered portable occupational dust monitors.

Different models in the 1100 series use patented laser and filter based technologies to measure and display inhalable, thoracic and alveolic respirable dust values or size/mass distribution data.

Results can be logged locally on data storage cards (up to 64Mbyte) or downloaded to PC.

For ultrafine particles (aerosols) the condensation particle counter (CPC) range can detect particles as small as 5nm in diameter and concentrations up to 10G particle/litre.

The N-butyl alcohol vapour used to render the particles detectable is supplied from an integral spillproof reservoir, again with the objective of true portability.

These particle counters can be coupled with a Grimm Electrostatic Classifier (DMA) to provide a complete counter and particle size spectrometer system.

Working on the sequential sizing principle, three DMA models handle size distributions from 5 to 875nm.

According to Chris Tyrell, Quantitech's Product Specialist: "This range offers a genuine European manufactured alternative to American products, with real technical advantages and very attractive prices".

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