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Our S4 units are capable of having all the flows, pressures and temperatures read and adjusted remotely via the internet. This together with the out of limit alarms may be messaged to Signal Group where the service department can check the readings and adjust the settings if necessary. All S4

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Rush to clean energy prompts demand for ammonia analysers

The global stampede to develop clean energy sources has prompted a demand for ammonia analysers from the developers of engines that will be capable of using ammonia as a fuel. In response, Signal Group has developed a new ammonia analyser, the S4 Nebula, which employs tunable diode laser spectrometry (TDLS). 

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How to check the calibration and linearity of gas analysers

Calibration is the process of establishing the relationship between the output of a measurement and a known input. In common with most measuring instruments, gas analysers require calibration following installation, and then at regular intervals to check that they are performing to specification. Regular zero and span checks (known inputs)

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New demands for enhanced Greenhouse Gas monitoring

Increasing political action on Climate Change is prompting a new requirement for process operators to improve the accuracy and reliability of greenhouse gas (GHG) emissions monitoring. To meet this requirement, Stephane Canadas from UK gas analyser manufacturer Signal Group is urging the operators of combustion equipment, such as boilers and

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Monitoring solvent emissions to ensure compliance

Governments from around the world have implemented environmental regulations to reduce the emissions of volatile organic compounds (VOCs) from industrial processes. For example, according to the European Solvents Industry Group, total VOC emissions in the EU have been reduced by more than 60% since 1990. With over 40 years of

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Monitoring NOx in combustion products and processes

In the following article we outline the environmental and health issues associated with NOx, and emphasise the importance of monitoring nitrogen oxides. We also describe the factors affecting the choice of measurement technology, and explain some of the issues that should be addressed by chemiluminescence analysers. Download the full Technical

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SOLAR screen with hand

Wireless tablet puts gas data where it matters…in your hands

The technology development team at Signal Group have announced the launch of yet another market leading innovation for its S4 gas analysers – a completely detachable screen.  “We noticed that it was either inconvenient or impossible for many of our customers to be physically next to their analysers in order

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Calibration of the Linearity of Emissions Gas Analysers

Continuous Emission Monitoring (CEMs) operators are already familiar with the need to calibrate their stack analysers using certified calibration gases.  Frequent calibration against an accurate certified gas ensures that the measurements from the stack will be as accurate as the calibration gas provided that the analysers don’t drift in between

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Monitoring and controlling VOC emissions

As one of the world’s leading manufacturers of VOC monitoring equipment, Signal Group performs a vital role in helping to protect the environment from harmful emissions. Volatile organic compounds (VOCs) are harmful to both health and the environment, so the management of risks associated with VOCs necessitates accurate and reliable

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Transportable VOC emissions analyser submitted for QAL1 certification

As a British developer and manufacturer of gas analysers, Signal Group follows the emergence of international Standards very closely. This is because Standards ensure that monitors are fit for purpose, and also because regulators require operators to employ suitably certified equipment. Signal Group is therefore delighted to confirm that the

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