Luminance Measuring Device Ensures Emergency Lighting Compliance

GL Opticam 1.0 Image Luminance Measurement Device

BSI, the business improvement company, has invested in a GL OPTICAM 1.0 luminance measuring camera, from Analytik to verify emergency lighting product compliance with the standard ISO 3864-2:2016 Graphical Symbols – Safety Colours and Safety Signs Part 4: Colorimetric and Photometric Properties of Safety Sign Materials.

Luminance distribution and contrast measurements are of key importance in the verification of internally illuminated emergency exit signs in compliance with the IEC/EN 60598 series standard. Specific measurements must be performed according to the standard in order to check luminance uniformity across the safety sign, in addition to colour rendering index. For this purpose, a significant number of points on each sign must be tested and compared.

Using a traditional spot measuring device for this task is time and labour intensive, and requires manual calculations and reports, whereas the imagining luminance measuring device provides a quick and reliable testing procedure. The new GL Opticam 1.0 captures the whole image and analyses the luminance level and compare values. Users have quick access to data and immediate verification of compliance.

When asked why BSI selected the GL Opticam, Global Head of Gas & Electrical Products, Graham McKay, said “The Opticam is the only available instrument able to meet all of our requirements and I am pleased with the ongoing support provided to customise the software to meet our specific needs. Our investment with Analytik demonstrates our commitment to constantly improving BSI’s services and in finding new and more efficient testing procedures”.

A typical emergency exit sign with measurements points

Analytik’s Light Measurement and Imaging Specialist, Isaac Gilbert, adds “We’re really excited to have installed the UK’s first GL Opticam at BSI as the business standards company helps organisations make excellence a habit all over the world. The Opticam is a unique high-performance instrument, which will enable BSI to precisely measure luminance across a wide range of applications”.

The GL Opticam is a high-performance Imaging Luminance Measurement Device designed for the quality control of indoor and outdoor lighting products, illuminated symbols, and automotive, aerospace and street luminance. Equipped with a high resolution CMOS sensor, V-Lambda correction filter and a lens optimised for precise luminance measurements, the GL Opticam is capable of accurately replicating human response to brightness. For further information on the GL Opticam  please visit https://analytik.co.uk/product/gl-opticam/ or contact Analytik on +44-1954-232776 / info@analytik.co.uk.

For over 15 years – Analytik has been a trusted supplier of cutting-edge scientific instrumentation to leading organisations throughout the UK and Ireland. In addition to supplying innovative analytical instrumentation from global technology providers, we deliver added value through specialised consultative expertise and comprehensive pre and post-sales support to ensure that our customers get the most out of their investment. For further information please visit www.analytik.co.uk.

BSI is the business improvement company that enables organisations to turn standards of best practice into habits of excellence. For over a century BSI has championed what good looks like and driven best practice in organisations around the world. Working with over 86,000 clients across 193 countries, it is a truly international business with skills and experience across a number of sectors including automotive, aerospace, built environment, food, and healthcare. Through its expertise in Standards Development and Knowledge Solutions, Assurance and Professional Services, BSI improves business performance to help clients grow sustainably, manage risk and ultimately be more resilient. To learn more, please visit: www.bsigroup.com.

 

Multi-Wavelength Instrument Improves Nanoparticle Analysis Specificity

Analytik has launched the next generation ZetaView® QUATT, with a multi-wavelength video tracking microscope for rapid analysis of size, concentration, fluorescence, electrophoretic mobility and sub-populations of individual nanoparticles.

ZetaView QUATT Z-NTA instrument

Biological nanoparticles including extracellular vesicles, exosomes, viruses, or virus-like particles are a rapidly growing area of research in the life sciences and nanomedical field. Using proprietary Nanoparticle Tracking Analysis (NTA) technology, ZetaView instruments are able to capture the Brownian motion of each particle in a video.

Based on the different diffusion movements of large and small particles in the surrounding liquid, ZetaView instruments are able to determine the hydrodynamic diameter of the particles. Furthermore, following the movement of the particles in an applied electric field, the charge state of the particle surface (zeta potential) can be measured. As a consequence, pattern parameters, such as intensity fluctuations, surface geometry and shape of the particles as well as particle concentration are recorded and can be used to distinguish sub-populations.

The new ZetaView QUATT has been designed to enhance sample measurement specificity. Through the addition of three additional laser sources, the new instrument expands on the ZetaView’s existing fluorescence capability, adding multi-wavelength excitation to its market-leading anti-bleach fluorescence technology.

Video tracking of individual particles

As the names suggest, the ZetaView TWIN houses two excitation lasers and the ZetaView QUATT takes this to the next level, housing four different wavelength lasers. Both instruments have automatic filter sliders which are activated by a simple mouse click in the software to switch between lasers and between fluorescence and scattering modes.

With the new exciting ZetaView NTA instrument one, two, or four different fluorophores or dyes with different excitation and emission spectra can be analysed on the same sample, allowing calculation of biomarker ratios. The innovation of multi-wavelength fluorescence-NTA also reduces total measurement times, minimises the amount of sample required and improves experimental reproducibility.

For further information on the ZetaView QUATT please visit
https://analytik.co.uk/product/nanoparticle-tracking-analysis-zetaview/  or contact Analytik on +44-1954-232776 / info@analytik.co.uk.

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