26 Safety GRP IECEx & ATEX Xenon Strobe Beacons Launched at CIPPE

E2S Warning Signals (UK) recently launched its new GNEx GRP Xenon strobe beacons on Booth W1002E at CIPPE 2016 in Beijing. The new products add visual signalling to the explosion proof and corrosion resistant GNEx family. Suitable for all Zone 1, 2, 21 & 22 hazardous location applications the GNEx beacons have extended temperature range with IECEx and ATEX Ex d approvals. For high ambient light or long distance signalling the GNExB2 beacon is available in 10, 15 and 21 Joule variants producing up to 902cd - a very high output Xenon strobe. The smaller sized GNExB1 is available for where a 5 Joule (up to 117cd) unit meets requirements. Three flash patterns and second stage, set by user, are a standard feature with all GNEx beacons, depending on base model and power (DC or AC) supply. On-site removal and replacement of the lens filter, such as for colour changes, is simple. Polycarbonate, UV stable lenses are available in Amber, Blue, Clear, Green, Magenta, Red and Yellow as separate spare parts. Installation time is minimised by design with the GRP enclosure featuring a threaded flame path, multiple cable entries and a large termination area.

Complementing the GNEx range is the GNExJ2 Ex d junction box, which, having multiple cable entries and terminal configurations means suitability for many other applications. Both 15 and 21 Joule versions can be supplied as a plate mounted assembly configured with up to four Xenon strobe beacons with a junction box or five beacons without a junction box. The new Xenon strobe beacon visual signals broaden the GNEx family which includes alarm horn sounders, PA loudspeakers and manual call points for activation of fire alarms, gas detection and emergency shutdown systems.

Fast and High-

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Changes in the energy industry have generated a great need for affordable, high-resolution sensors for the measurement of the energy content of natural gas and other fuel gases. At the same time, the demand for more efficient appliances for routine monitoring and leakage detection has also increased.

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Resolution Gas Sensors for the Energy Industry

Orders Flood in for Oxygen Monitor Following Successful Launch

Servomex (UK) has seen a rush of orders for its upgraded SERVOTOUGH OxyDetect life safety oxygen monitor following a successful launch.

Now available as a hazardous or safe area version with updated communication relay options, the OxyDetect offers a highly accurate oxygen measurement without the sensor deterioration that degrades the performance of traditional electrochemical sensors used in competitor detectors.

The OxyDetect utilises the market-leading performance of Servomex’s Hummingbird Paracube Paramagnetic sensor, whose industry-leading levels of linearity, accuracy and reliability have ensured its use as a trusted oxygen sensor for the OEM medical market.

As the sensor never depletes and the measurement remains accurate, OxyDetect avoids false readings and false alarms caused by depleted cells, as well as the serious safety risk caused by life safety systems being turned off or ignored because of constant false alarms.

This gives users a considerably lower cost of lifetime ownership, with the costs associated with replacing electrochemical cells, as well as the problems of cell degradation when kept as a stock item, eliminated.

With an output range of 0-25% Ow w

In order to quickly and accurately measure this, a new infrared spectrometric sensor was developed as part of the joint “SIRKO” project, which has significantly improved properties when compared to previous methods. Involved in this development was Dresden-based InfraTec (Germany), who presented this detector XFP-3137 at SENSOR+TEST 2015 for the first time.

The core of the innovation is a tunable micromachined Fabry-Pérot filter (µFPF). By using a higher order of interference, the spectral resolution could be improved from 60 nm to about 25 nm in the wavelength range of (3.1 … 3.7) µm. The dynamics of the filter was significantly improved by optimising the electro- mechanical design and enables scan frequencies of up to 10 Hz. As an additional option the simultaneous measurement of carbon dioxide in the wavelength range to 4.3 µm will be possible in the future by using the dual- band sensor.

Infrared spectroscopy is a physical sensing principle to determine gas concentrations accurately, selective and long-term stability. In particular, the accurate and rapid analysis of gas mixtures, such as hydrocarbon gas mixtures or the composition of natural gas, can be carried out using the detectors developed in the project with integrated µFPF.

This technology can be used to analyse gas compositions such as hydrocarbon mixtures or the composition of natural gas. These detectors can not only be used in large power plants, where even small improvements in the efficiency can bring enormous benefits, but also in cogeneration, natural gas fuel cells and small firing systems.

The name SIRKO stands for “Fast infrared spectrometer for the analysis of hydrocarbons”. The joint project was part of an initiative promoted by the innitiative “KMU- innovativ: Optische Technologien” by BMBF. Started in early March, 2012, the SIRKO project was successfully completed in February 2015.

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using an isolated 4–20mA output with linear measurement, and mains-rated relay outputs for instrument fault, low alarm one and low alarm two. An optional Ethernet output is also available.

Potential customers have responded well to a video showcasing all the advantages of the Oxydetect, available to view at Servomex’s website.

Matthew Halsey, Product Manager - Process Oxygen, Zirconia and Oxygen Deficiency at Servomex, said: “The OxyDetect is both reliable and easy to use. You can just switch it on and be confident that it will keep on working, making sure your people and plant are safe.”

“It has a measurement performance you can trust, while reducing ongoing maintenance and replacement costs.”

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New Generation Smart Gas Detector

Kimessa, a Swiss gas detection manufacturer are pleased to announce their new ‘Smart’ Ex Gas Detector (ATEX & IECEx) for a wide range of combustible or toxic gases.

Ex certified for IR, Catalytic, Electrochemical and Semiconductor sensors, featuring a built-in Zener barrier for the Ex ia toxic gas version. Low range toxic gas sensors may be incorporated to monitor for PH3,HCHO, BR2, Hbr, F2, H2O2, SO3, etc

Outputs include analogue 0-20mA, 4-20mA, digital CAN-BUS or Modbus RTU with optional relays (3). 24Vdc as standard with optional in-built power supply (85-265VAC).

The digital CAN BUS output option facilitates interfacing the Smart detector to the Kimessa CM gas monitor expandable for use with up to 128 detectors. Touch Screen displays with data logging, relays cards and the Kimessa web server for online monitoring, may also be added to the CAN BUS network,

offering a comprehensive data suite to the client.

Replacement sensors are pre-calibrated and easily replaced in the field. An intuitive menu on the OLED display facilitates non-intrusive calibration via Hall Effect sensors and a magnet.

Michael Baumann, technical manager at Kimessa outlines the key benefits of the new Smart Ex detector.

“We have addressed key end user criteria such as reliability, simplicity of use, reduced installation costs, low cost of ownership, on line options for real time data display with logging and a comprehensive technical support team with a trained distributor network. 30 years interacting with our clients has guided us in the development of this new generation gas detector,” said Michael Baumann.


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