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N96 - Diaphragm Vacuum Pump and Compressor High Performance


KNF showcases a new powerful pump for a wide range of applications. The N96 is suited for gas sampling analysis and all other processes requiring reliable and precise transfer of gaseous samples. Compact and high performing, it can transfer even aggressive & corrosive media. Its robust design means it can be used with a broad spectrum of media at temperatures up to 70 degrees Celsius.


Available with either an EPDM membrane or a PTFE coated membrane, the N96 is chemically resistant and highly tolerant of vapour and condensate, making the N96 perfect for use in instrumental analysis. In this fi eld, the N96 can perform the typical tasks of gentle, precise


preparation and transfer of samples for analysis as well as safe aspiration of chemical liquid waste mixtures.


With its highly effi cient brushless DC motor and rotational speed control, this diaphragm pump can dynamically meet the requirements of complex operating profi les. The N96 low heat emission makes it suitable for use in ambient temperatures of up to 50 degrees Celsius. The pump can effortlessly start up against load, has a fl ow rate up to 8.5 l/min and can produce 2.5 barg pressure and vacuum down to 100 mbar abs, whilst running continuously.


The N 96 is a powerful pump for gas sampling analysis and instrumental analysis. For More Info, email:


52387pr@reply-direct.com Personal proximity alarm enables


smarter social distancing Workers and businesses have never been more aware of the need for positive occupational hygiene culture than they are as a result of the Covid-19 pandemic. There has been an unprecedented effect on businesses – in Q2 of 2020, over 32,000,000 working days were lost as a result of Covid-19 related absences, translating into a cost of over £4 billion to UK businesses alone. The challenge industry now faces in reopening is balancing worker health, the concerns of employee and legal and legislative responsibility around operating a ‘Covid secure’ workplace.


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A key means of protecting people against Covid-19 exposure, in workplaces and in the wider world, has been social distancing – remaining 2m apart or 1m with extra precautions in place - something that will prove challenging on workplaces where fl oor plans are designed for special effi ciency, not to keep workers as distanced as possible.


Casella has developed an innovative, technology-forward solution to simplify social distancing in the workplace with the launch of the Orbi-Trace smart tag – a fl exible social distancing solution that provides simple proximity alerts all the way up to full effective contact tracing.


The body-worn Orbi-Trace smart tag is simple to operate, with a stop/start input and single LED power alert. It gives the wearer fully confi gurable vibration and audible alerts whenever a 2m safe distance is breached, and can operate indoors and out, with a battery life of up to seven days. The sophisticated ultra-wideband (UWB) connectivity is accurate in detecting distances down to 10cm accuracy – making it 20 x more accurate than Bluetooth. The connectivity will not cause interference with WIFI or other RF technologies.


When combined with the wall-mounted anchor unit and proprietary, free to use Infection Insights software, the Orbi-Trace can be used to generate connection graphs and risk and contact assessments, should an employee test positive for Covid-19. Adding additional anchor units to the system expands this to full real-time contract tracking, giving users access to heat-maps of areas where social-distancing may be consistently challenging and a full contract tracing history, making enforcing controls much more straightforward. For those mediating employee privacy concerns, the Orbi-Trace system is also fully GDPR compliant.


“The Covid-19 pandemic has been a challenging time for everyone on a business and personal level. But where there are challenges, there are inevitable solutions,” says Tim Turney, Casella Global Marketing Manager. “Businesses have proved their resilience and adaptability in getting staff safely back to work through the Pandemic, and now as those businesses look towards the future with a large-scale return to work, we are here to support them.”


“The Orbi-Trace smart tag is a combined solution to the challenges employees and employees alike face in ensuring a Covid-secure, compliant workplace; maintaining social distancing, enforcing the correct control measures, contact tracing where needed and, most importantly, giving workers and workplaces vital peace of mind that their safety is top priority.”


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Weatherproof noise-activated hearing protection signs


One of Pulsar Instruments’ most popular noise warning products, the Pulsar SafeEar, has now been made weatherproof. This new IP65 rated weatherproof noise activated warning sign lights up to warn site workers and visitors when noise levels have exceeded a pre-set decibel trigger. The sign will indicate that hearing protection must be worn, and when the light goes off workers know it is safe to remove their hearing PPE.


The SafeEar is ideal for industrial processes, construction sites, outdoor maintenance areas, exteriors of business premises and environments where water or high levels of moisture and dust may be present.


These signs don’t have to be only used outside. As the signs are IP65 rated they can be used in any area where moisture might be present or in areas that undergo high levels of industrial cleaning. They can also be used outside business premises to help people keep their noise levels down to reduce the risks of noise complaints.


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What are ultrafi nes?


Ultrafi nes are particles that are too small to contribute appreciably to mass-based measurements, but are present in ambient air. They are quantifi ed using the concept of ‘number concentration’, or number of particles per cubic centimeter of air. For more on number-based measurements, please refer to our whitepapers on ambient air quality.


Measuring ambient particle number concentrations


Measuring the particle number concentration of particles in ambient air is mainly done using a single particle counting technique, and focuses on particles in the size range of ~1 nm to ~1 µm. This technique utilizes a condensation process to make those tiny, invisible particles visible to an optical counter. These Condensation Particle Counters (CPCs) work over a wide range of concentrations, and can therefore be used both in heavy polluted areas and at background stations. The European standard CEN/TS 16976 describes the use of CPCs to determine atmospheric aerosol number concentrations, while CPC calibration is described in ISO 27891:2015. CPCs are fully automated systems with very low user interaction during long-term operation. TSI has continually built expertise since releasing the fi rst commercially available CPC in 1979.


Adding insight on particle size


Using a CPC as the basis, adding sizing capability adds another level of insight. Since airborne particles are present over a very wide size range, various technologies have been developed to measure particle diameter. Ultrafi ne particles can be measured with high time and size resolution, typically covering a particle size range between 1 nm and 1 µm. These ultrafi ne particle spectrometers are based on electrical mobility measurement (as described in ISO15900:2009) and utilise CPCs to count the number of particles in each size channel. Determining the ultrafi ne particle size distribution is described in the new European standard draft CEN/TS 17434 as released in 2019. In this standard, the method ‘Mobility Particle Size Spectrometer (MPSS)’ is used to cover a size range from 10 nm to 800 nm. TSI’s Scanning Mobility Particle Sizer (SMPS) fi ts this need, and has been making ambient air measurements worldwide for years.


Select your solution


TSI is the most trusted provider of Condensation Particle Counters and Mobility Particle Size Spectrometers (SMPS, MPSS) in the world. The instruments are available in various versions, to cover applications such as new particle formations (down to 1 nm), engine emission measurements, and also ambient monitoring. In the context of developing regulations and evolving science, TSI will continue to serve the ambient monitoring community for years to come.


More information online: www.tsi.com/ambientair/ For More Info, email:


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TSI Instruments Ltd., Stirling Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3ST, United Kingdom, Tel: +44 (0) 149 4 459200


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Ultrafi ne particle monitoring for air quality measurements


Air quality affects us all. While the fi eld of air quality encompasses many aspects, one topic that is been gaining attention in recent years is the measurement of ultrafi ne particles.


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