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The list below is a selection of news from our partners and other news of general interest in the fields we re are active in. You can receive more information by clicking on the links provided below (wherever applicable) or by contacting us directly, using the contact information above. In many cases, you can also find more detailed information at the web sites of our partners. |
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News |
Contact us for more information at: +46 (0)8 647 45 99, or: info(at)exisab.com |
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Last update: 2012-02-06 |
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Besides the news below, ExIS also publish newsletters. To subscribe to our newsletters, just send an e-mail with ”subscribe” in the title to this e-mail address: info(at)exisab.com. Newsletters are also available for downloading. Click here to get access to our latest newsletters. |
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New Topas instruments |
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New instruments from Topas are: LAP 322. The LAP 322 particle size spectrometer is a further development of the proven LAP 321 instrument. The new LAP 322 has an extended measurement range; i.e. the lower limit is now 0,2 mm (0,3 mm for LAP 321) and the upper limit is 40 mm (30 mm for LAP 321). The maximum number of size channels is 128. HDS 561. The new dilution system HDS 561 provides a reliable and very high single stage dilution. Furthermore, it is adjustable, ranging from 1:100 to 1:100 000. It can be customized for flow rates from 2,8 to 100 l/min. The pressure drop is very low. This dilution system is particularly suited for clean room validation but will work also in many other applications. PAP 612 & GMS 141. For measurement of combustion engine blow-by gases, Topas offer both fully-equipped test rigs and instruments. The PAP 612 is an optical instrument, which can operate in over- or underpressure. It is primarily designed for investigations of crankcase ventilation systems on combustion engines. Due to its compact design, PAP 612 can even be used for on-board measurements. GMS 141 is a gravimetric measurement system for measuring oil content in blow-by gases. The filter box can be heated to avoid condensation. The measuring device combines a simple and rugged assembly with an economic low-cost manual application and handling. Control is made via a web browser. LAP 322 brochure HDS 561 brochure PAP 612 brochure GMS 141 brochure 2011-02-18 |
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First deliveries of Pegasor PPS-M sensor and Dekati ELPI+™ instrument |
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The first deliveries of the Pegasor PPS-M sensor was made end of 2010 and beginning of 2011. Similarly, the first deliveries of the new Dekati ELPI+™ instrument will be made this week and during the next couple of weeks. 2011-02-18 |
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DiSCmini from Matter Aerosol is now launched |
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The “Diffusion Size Classifier” or DiSCmini, from Matter Aerosol is a portable sensor for the measurement of particle number and average diameter with a time resolution of up to 1s (1Hz). The simultaneous capture of number concentration and particle size allows the specification of other characteristic parameters, such as the particles surface (Lung Deposited Surface Area, LDSA). This technology is not only available in a handheld version but also as a robust desktop unit (DiSC). Both are battery-operated and data can be recorded on a memory card. DiSCmini is particularly efficient for personal exposure monitoring in working environment with exposure to e.g. diesel soot, welding fumes, industrial nanomaterials. The DiSCmini is based on the electrical charging of the aerosols. The charged particles are then detected in two stages by electrometers. The first detector stage is a pile of steel grids, small particles will preferably deposit on it by diffusion. The second stage is a high efficiency particle filter which captures all the other particles. The mean particle size can be obtained by analysis of the two currents measured on the stages. The size range is from 10 to 300 nm. 2011-02-18 |
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Flyer on DiSCmini from Matter Aerosol is now available |
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A flyer for the “Diffusion Size Classifier” or DiSCmini from Matter Aerosol is now available. A dedicated website for the DiSCmini has also been created. This site will be used for posting more information with technical details and scientific data on the DiSCmini instrument. More information is available via the links below. A brochure on DiSCmini will follow in about 2 weeks. DiSCmini flyer DiSCmini website Matter Aerosol website 2011-04-15 |
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Grimm EDM 180 now also approved by US EPA |
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With the approval of the Environmental Dust Monitor , EDM 180, by US Environmental Protection Agency (US EPA) on March 22, this instrument is now approved basically in the whole world. EDM has been previously approved most countries in Europe, including Sweden. Many countries outside USA use approvals by US EPA and EDM 180 is therefore, de facto approved in many other countries. No other real-time instrument for ambient air monitoring according to “equivalent methods” has been approved in so many countries. The gravimetric “reference method” cannot provide more than one size of PM and does not provide real-time data. EDM 180 can, in the most advanced version, measure PM10, PM2,5 and PM1,0 simultaneously and, in addition, particle number emissions in 31 channels from 0,25 to 32 mm. No other approved instrument is based on optical detection. EDM does not need any corrections for measurement site (geography) or climate. 2011-04-15 |
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Pegasor PPS presentation at the 2011 SAE Congress in Detroit |
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Efforts to develop a sensor for on-board diagnostics (OBD) of diesel vehicles are intensive as diesel particulate filters (DPFs) have become widespread around the world. A study on this topic was presented at the SAE Congress in April 2011 by the Aristotele University in Thessaloniki and Pegasor. The PPS sensor was successfully tested for OBD diagnosis of damaged DPFs in real-exhaust of a diesel car and a diesel engine. The sensor provides high resolution and sensitivity superseding OBD requirements. The sensor was used on an engine to monitor the efficiency of damaged DPFs (see X-ray photo to the left). The sensor was then installed in the exhaust of a vehicle to test the DPF efficiency of a well operating and a damaged DPF over a transient test. The sensor was found to be sensitive enough to clearly detect a defected from a well-operating particle filter even at levels as low as 6 mg/km. This study demonstrates that a soot sensor based on the escaping current technique has the potential to be used for OBD and DPF control on forthcoming light duty and heavy duty diesel vehicles. The presentation from the SAE Congress on the Pegasor PPS sensor is now available for downloading via the link below. A link to the abstract is also included below. The corresponding SAE Paper (#2011-01-0626) can be purchased via the home page of SAE. SAE Presentation Abstract at SAE Website 2011-04-29 |
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The brochure on DiSCmini from Matter Aerosol is now available |
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The brochure for the “Diffusion Size Classifier” or DiSCmini from Matter Aerosol is now available for downloading (use link below). This unique hand-held size classifier has gained a lot of interest lately. DiSCmini can be used in many applications where, until now, full-size instruments have been the only option. DiSCmini brochure DiSCmini flyer Matter Aerosol website 2011-08-19 |
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Pegasor PPS-M presentation at ETH Nanoparticle Conference 2011 |
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Two interesting presentations on the Pegasor PPS-M sensor were made at the ETH Nanoparticle Conference by West Virginia University (WVU). WVU has tested the PPS-M sensor in various applications such as, e.g. engine and chassis dynamometers as well as in on-board applications for in-use testing. The presentations concentrated on testing on dynamometer test cells. In particular, NTE (Not To Exceed) in-use testing and various inter-comparisons with other instruments were reported. WVU (Besch) at ETH WVU (Cozzolini) at ETH 2011-08-19 (updated 2011-09-19) |
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ELPI+ update |
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ELPI+ development continues and new features will be introduced in the near future. Sintered collection plates are now available for ordering. A heated setup is also in the pipeline. Firmware updates via the USB port will be possible. Digital data output via an additional port will be added on new units. Last but not least, the AK protocol for automotive applications will be available on request. Most welcome for new orders is that production optimization will decrease the delivery time from current 2011-08-19 |
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Pegasor PPS-M sensor update |
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The PPS-M sensors delivered after the summer 2011, will incorporate a number of improvements. There are improvements both in the electronics (less noise and drift) and the mechanical hardware (flow path) that will improve signal quality and the already very good time response. We can now also offer the AK protocol for communication with a host PC in the test cell. This is a most welcome feature in the automotive industry. Later, we will also be able to provide communication via the CAN bus. Please also look at the latest publication on PPS-M at the ETH Nanoparticle seminar, as shown in the news below. 2011-08-19 |
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German TÜV certificate for PSS-20 and Micro-PSS from Control Sistem |
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Currently, type approvals for measurement instruments are not issued by EU or any other authority. It is up to the instrument manufacturer to prove that the requirements are fulfilled. As this is not always a satisfactory solution, Control Sistem commissioned German TÜV to conduct a “third party” assessment. The result from this work is that Control Sistem now has received Certificates from TÜV that both Micro-PSS and PSS-20 fulfils the requirements for all major emission standards. Links to the certificates are included below. Please contact us if you also want to obtain the test reports. Micro-PSS certificate PSS-20 certificate Micro-PSS brochure PSS-20 brochure 2011-08-19 |
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Time response of the Pegasor PPS-M sensor presented at EAC |
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An evaluation of the time response of the Pegasor PPS-M was presented by the French Institute IRSN at the European Aerosol Conference (EAC 2011) in Manchester, September 4-11. Characteristic time response for a step increase was ~0.18 s and ~0.23 s for step decrease. In this very comprehensive laboratory study an aerosol generator and synchronized magnetic valves were used to make step changes of the concentration (up/down). A very good linearity (vs. CPC) for a defined particle size was found. A report (in French) on this topic with further details has also been published by IRSN. A comment from Pegasor staff is that the new electronic unit introduced this autumn, as described below, improves time response in comparison to the PPS-M version tested by IRSN. Increasing the flow through the sensor is another way to further improve the time response. Please also look at the latest publication on PPS-M at the ETH Nanoparticle seminar, as shown in the news below. 2011-09-19 |
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The new Grimm FAPES has been launched |
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Grimm’s FAPES (Fast Aerosol Particle Emission Spectrometer) instrument has now been significantly updated in a new version. FAPES measures particles in a size range from 6.3 to 474 nm. FAPES is a true real-time instrument with a sampling rate of 10 Hz (internally, 100 Hz). FAPES provide data on particle size distribution in 25 difference size classes. The new instrument is based on 12 “Vienna”-type classifiers (10 in the previous version) and it use ultra-low noise Faraday’s cup electrometers for particle detection. Due to the electrical detection, FAPES gives reliable results without calibration and it can also be used to calibrate other instruments, e.g. CPCs. Due to the use of Faraday’s cup electrometers with rinsing air flow, leaking currents in the electrometers is not an issue. This is problematic in competitor’s products, where contamination requires frequent cleaning. FAPES comes with a built-in sampling, dilution and conditioning system. Temperature can be varied from ambient up to 500°C and the dilution ratio can be varied from 1:5,7 to 1:40 in 7 steps. No pressurized air is needed since the dilution air is instead filtered, dried and purified from organic gases with active carbon. The range of working pressure has been extended to 0,1 – 2 bar(abs), enabling, for example, sampling before a diesel particle filter or in altitude simulation test stands. The sample is returned downstream the sampling point, so pressure fluctuation is not an issue. The new FAPES instrument was displayed at EAC in Manchester, September 4-9, for the first time. Demo instruments are now available for testing. Please contact us for more information and/or a demo. More information is also available in the documents below. FAPES brochure Grimm’s Newsletter, September 2011-09-27 |
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Matter Aerosol’s DiSCmini instrument is now available for demonstration! |
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The “Diffusion Size Classifier” or DiSCmini from Matter Aerosol is now available for demonstration. This unique hand-held size classifier provides real-time measurement of nanoparticles and has gained a lot of interest lately. DiSCmini can be used in many applications where, until now, full-size instruments have been the only option. Since some time, ExIS has this interesting instrument readily available for demonstration and we have now also gained own extensive experience of using the instrument. For those of you who are interested in looking at data from the DiSCmini, we have prepared an MS Excel sheet with post-processed data from the DiSCmini. Example data. Contact us for a demonstration. More information is available via the links below: DiSCmini brochure DiSCmini flyer Matter Aerosol website 2011-12-01 |
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New co-worker at ExIS |
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We would like to introduce our new co-worker, Anders Granqvist, who recently started to work with us at ExIS. Granqvist will initially mostly work with Grimm and Topas products but will also be involved in other business at a later stage. Contact information to Anders can be found at the “About us” page. Anders Granqvist is also engaged in his own company, Swedeco (www.abswedeco.se). 2011-12-05 |
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IONER high-resolution ion mobility spectrometer launched |
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The Spanish company IONER (ION Explorer by Ramem) officially released the high-resolution ion mobility spectrometer (HRMS) instrument at the NOSA (Nordic Society for Aerosol Research) Symposium in Tampere, Finland, November 9-11. The HRMS instrument is ideal for detecting various chemical compounds, such as, e.g. explosives (Nitro-glycerine, PETN, RDX, TNT, TATP, HMTD), TICs and volatile organic compounds (acetone, diethyl ether, formaldehyde, BTX, etc.). Early 2012, we will be able to conduct demonstrations of this innovative instrument. Please contact us on e-mail or phone (+46-8 647 45 99) for more information. Dekati and ExIS jointly distribute IONER instruments in the Nordic countries. The product portfolio of IONER includes optic instruments, electrometers, control equipment, chargers and aerosol generators. IONER HRMS brochure IONER home page 2011-12-07 |
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Grimm EDM 365-SVC instrument for measuring of semivolatiles has been launched |
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The EDM 365-SVC instrument is technically based on the proven and robust GRIMM Environmental Dust Monitor EDM365 and has been designed to specifically determine the Semi Volatile Compounds (SVC) in the environment. The new approach of GRIMM is based on measuring particles via two different probe inlet paths; one is the proven Nafion dryer without the loss of particles and semi-volatile particles; the other one uses in addition a heated sampling probe head prior to the optical measurement. This sampling probe head can be heated, depending on the application, up to an arbitrary temperature of 300°C. A mechanical valve switches automatically in adjustable intervals between the two sample air inlet paths. Calculating the difference between the two measurements allows not only the determination of the SVC for TSP, PM10, PM2,5, PM1, and for the total counts but also – and this is unique – for the size resolution in 31 channels starting at 0,25 µm up to > 32 µm. Due to the relatively short switching time between the two flow paths, a continuous measurement of the SVC fraction is enabled. The EDM 365 is based on the same technology as the EDM 180 instrument and, therefore, it is approved as an equivalent instrument by the Swedish EPA for measurement of PM10 and PM2,5 in ambient air. For more detailed information about the EDM 365-SVC instrument, please refer to the latest Grimm newsletter, available via the link below. Further information about the EDM family of instrument is found in the EDM catalogue and the documentation from Swedish EPA and the reference laboratory. Grimm’s newsletter 4, 2011 EDM Catalogue Recommended instruments (in Swedish) Recommendation from Swedish EPA (in Swedish) 2011-12-07 |
