14 Gas Detection Infra-Red Gas Sensing Made Easy
SGX Sensortech (UK), a leading manufacturer of gas sensors for industrial safety and air quality is pleased to announce the launch of its latest innovative product.
The INIR (integrated infra-red) makes fl ammable gas and carbon dioxide sensing easy. It is designed to operate in the harshest of environments and produces accurate, fast readings with the minimum of circuity design.
The new INIR integrated infra-red sensor incorporates a high performance optical cavity coupled with leading edge electronics. All necessary driver circuitry and fi rmware is included to produce a linearised, temperature compensated digital output.
The sensor, which is designed to work in both fi xed and portable instruments, responds quickly to changes in the target gas providing an accurate and repeatable signal. It is provided in an explosion proof housing for easy incorporation into critical-to-safety applications with a robust shock and vibration proof construction.
Many applications where infra-red sensors are typically used can be very challenging in terms of the water
present. Whether the water arises from dust suppression systems in mines, or as a result of steam generated during steel production, the vapour can cause many problems for optical sensors, and result in unwanted false alarms.
The INIR includes proprietary hardware and fi rmware which senses when humidity is present and reduces any response from the sensor. The INIR sensor is therefore ideally suited for environments where the atmosphere may change rapidly between wet and dry.
Inside the INIR, a powerful and reliable microcontroller driven by an ARM7TDMI core and 24 bit ADC performs all required operations on the raw sensor output and provides a 14-bit digital output. An analogue output option is also provided for instruments with built in ADC. The device can be calibrated and fully confi gured via a UART interface.
If you’d like to learn more about the revolutionary technology included in the INIR or wish to see for yourself the performance you can achieve, then please contact one of SGX Sensortech’s knowledgeable sales team or their network of local distributors for more information or samples for evaluation.
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36628pr@reply-direct.com Innovative Hybrid Technology for Gas Detection
Sensitron (Italy) has developed the innovative Hybrid gas detector, ATEX and SIL2 (3) approved. Among the gas detection instrumentation for tough environments an innovative alternative is now available, which compares the signals received from two different sensors (Pel+IR) installed in a single head setting the improper alarms apart. The Sensitron’s SMART S-IR is an innovative concept in the gas detection for the Premium Safety market. The detector uses a hybrid technology sensor (Pel+IR) installed in a single head. The behaviour of the sensors is constantly monitored by a microprocessor and the incoming signals are compared in order to supply an output corresponding to the worst situation revealed in the shortest time: it guarantees the highest accuracy with false alarm conditions close to zero.
Other important features of the SMART S-IR are: non-intrusive calibration; 3 wires 4-20mA output with a further three relay output and HART communication module (optional). The SMART S-SS and the SMART S-MS belong to the same family. The SMART S-MS is a double-head detector and two different sensors (Pel-IR; IR-IR; Pel- Electrochemical) can be installed on it. It guarantees two different independent outputs that can be compared. The detectors are SIL 2(3) certifi ed in compliance with EN50402/EN61508 part 1 to 7. Sensitron invite readers to visit their web site for more details on the company and their products.
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The OLCT 100, from Oldham (France), is a 4-20 mA analogue gas transmitter designed for industrial applications in hazardous locations.
The new design is lead free and has an operational life of fi ve years. The range is from 0 to 30% vol. O2
-40°C to 50°C continuously allowing new opportunities in low temperature applications.
This new Oxygen sensor completes the range of our current 2 year life O2
a full 4 year warranty.
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Axetris - The OEM Expert for TDLS Solutions
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sensors and carries
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New 5 Year Long Life Oxygen Sensor
Axetris’ (Switzerland) proprietary approach to Tunable Diode Laser Spectroscopy (TDLS) helps OEMs by providing solutions for low-cost, high-volume gas detection and monitoring applications. The modular design of our solutions, combined with Axetris’ intellectual property of reference channel-free devices, enables signifi cant cost synergies and drives down unit cost. Additionally, Axetris TDLS solutions achieve high detection performance at relatively short absorption lengths, helping us design compact solutions for OEM customers.
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IET January / February 2016
www.envirotech-online.com
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The laser gas detection (LGD) technology from Axetris can deliver key advantages compared to existing gas detection technologies: Extremely high selectivity to the target gas, Detection Limits down to ppm, Long lifetime (10+ years), Quick response time, Compact size due to short absorption length, Modular product design enabling custom designs, Very low cost-of- ownership (no regular replacement and/or calibration), Low gas sensor unit cost through scaling effects.
Discuss your OEM gas detection needs with the Axetris technology experts today.
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