GRIMM Aerosol Technik Existing technologies and improvements Environmental Measurement Instruments by Eng. Wolfgang Brunnhuber

General features WRAS Systems Mobile Systems Stationary Systems

MAIN FEATURES * 31 channel size distribution * Different measurements simultaneously * No probe heating only dehuminifiaction * No loss of Semi-Volatile compounds * Chemical specification possible * Gas analyses possible

ENVIRONMENTAL

#107 Portable Dust Monitor Small and portable solution for dust measurment in outdoor areas with PTFE Filter chamber with glas bottle and filter

#165 Weather Housing * Includes #107 * Fiber glas case * temperature sensor * Humidity sensor * Optional Rain sensor * Optional Wind sensor * 47mm PTFE Filter * Gas analyses possible

Monitor Sample Pipe Dryer Humidity Temperature Sensor Reserve #165 main parts

Operating Principle DEHUMIDIFICATION EDM165

Photo von Environment Canada, Ontario

#365 Mobile Dust Monitor Grimm * Stainless steal housing * Long term measurement * temperature sensor * Humidity sensor * Optional Rain sensor * Optional Wind sensor * 47mm PTFE Filter possible * Gas analyses possible

Stationary Systems

#180 stationary ambient monitor EN12341 certified * Certified for PM10 according to EN12341 * 19zoll rack mount * Special NAFION dehumidification system * GESYTEC MODE for networks * Long time measurement * Very low TCO‘s

Sampling pipe with Nafion tube

Nafion - The Perfect Drying Material Nafion is a copolymer of tetrafluoroethylene (Teflon®). Like Teflon, Nafion is highly resistant to chemical attack, but the presence of its exposed sulfonic acid groups confers unusual properties. Sulfonic acid has a very high water-of-hydration, absorbing 13 molecules of water for every sulfonic acid group in the polymer; consequently, Nafion absorbs 22% by weight of water. Unlike micro-porous membrane permeation, which transfers water through a relatively slow diffusion process, Nafion removes water by absorption as water- of-hydration. This absorption occurs as a First Order Kinetic reaction, so equilibrium is reached very quickly (typically with in milliseconds). Because this is a specific chemical reaction with water, gases being dried or processed are usually entirely unaffected.

Jorge Anjos

GRIMM # 190 Aerosol Spectrometer Counts with 31 Size Channels or Fine Dust Monitor with the same specifications as the #180 19” Stationary Dust Monitor / Size Distribution

#265 semi volutile compounds *specification of the semi volutile sompounds in ambient air * Stainless steal housing * Long term measurement * temperature sensor * Humidity sensor * Optional Rain sensor * Optional Wind sensor * 47mm PTFE Filter possible * Gas analyses possible

Data from the E-SVC

System Integration of GRIMM ENVIRONcheck

Installation examples of „STAND-ALONE“ GRIMM ENVIRONcheck

ENVIRONMENTAL DATA IN REAL TIME

PM-10 and PM-2.5 values at the same time with one unit Particle Concentration in 15 (or 31) Channels continuous

Mobile Systems WRAS Systems Stationary Systems SVC Systems

Wide Range Aerosol Spectrometer

E-WRAS Combination of the size distribution from a SMPS and a Spectrometer SMPS: 3 nm nm, 44 channels Spectrometer: 0.25 µm...30 µm, 31 channels E-WRAS: Range from 3 nm to nm (30 µm) 75 different channels

19“ Rack-mounted E-WRAS Sample pipe Spectrometer #190 19“ CPC + DMA

#565 environmental WIDE RANGE * Count distribution from 5nm up to 31µm * 72 channels * Stainless steal housing * Long term measurement * temperature sensor * Humidity sensor * Optional Rain sensor * Optional Wind sensor

Combined Size Distribution

SVC-Semi-Volatile Compounds Particles in the ambient air consist of solid and semi-volatile components. Semi-volatile compounds make up 20% to 50% of the PM2.5 Common samplers are losing semi-volatiles due to the ongoing sampling from the filter or by heating the sample probe to prevent condensation. Result: most measurements are underestimated.

Field Test in Austria