Communications/Telemetry


Continuous benzene specific monitor launched I


on Science has unveiled a continuous benzene specific monitor. The Titan has been specially


designed for the accurate and reliable detection of ambient benzene in petrochemical applications where traditional methods suffer cross interference – providing the ultimate real-time protection of workforce, environment and plant. Benzene is a constituent of crude oil and


becomes gaseous during petrochemical processing. It is a carcinogen with very low work exposure limits making sub parts per million (ppm) measurement an essential requirement. Traditional photoionisation detection (PID)


monitors easily detect benzene but they also identify other less harmful volatile organic compound (VOC) gases that are normally present at the same time.


As the first truly selective wall-mounted


benzene monitor, the Titan is set to be especially valuable for the petrochemical industry and refinery


Pressure sensing in hazardous areas T


he UNIK 5000 pressure sensing platform from the Druck product line of GE Measurement &


Control now carries the Brazilian INMETRO and the Chinese NEPSI Intrinsic Safety certifications. As a result, UNIK 5000 pressure sensors


can now be used throughout these countries in hazardous zone applications in the oil and gas and process industries. These innovative pressure sensors already carry FM. FMc, and IECEx/ATEX approvals, allowing global manufacturers to specify UNIK 5000 sensors with total confidence in any equipment they manufacture intended for export. As Sean Coyle, global product manager for the UNIK 5000 range, explains: “The achievement of the new certifications means that we can now be even more active in another two of the world’s major growing economies.” By combining silicon technology and analogue circuitry with modular design and lean manufacturing techniques, the UNIK 5000 platform offers custom-built pressure sensors from standard components, matching accuracy and specification to meet individual requirements. The high quality, piezo-resistive sensors offer


high levels of performance without the use of digital electronics, so that the sensors are suitable for sensitive applications such as those requiring


50 www.engineerlive.com


low power, pulse power, and fast response. They are available in a range of pressures from 70mbar (1psi) to 700bar (10,000psi) and in three grades of performance: industrial, improved and premium. These offer a range of accuracies from ±0.04%FS to ±0.2%FS. A choice of pressure connectors is available


and electrical connectors may be selected to suit most environments with operating temperature ranges from -55 to +125°C. A suite of eight


For more information, visit www.ionscience.com


Mooring-free buoy


O


cean Scientific International Ltd (OSIL) has teamed up with ASV Ltd to offer a low-cost,


mobile alternative to a permanent moored buoy system for all monitoring applications, but particularly targeted at oil and gas activities. OSIL manufacturers data buoy systems for


all applications and locations. ASV Ltd designs, builds and operates unmanned marine vehicle systems. The system utilises one of the ASV C-Stat


station keeping buoys which can be deployed for up to four days at a time, running either on hybrid diesel, or full electric power, and can be fully programmed to remain in position with a set watch circle, shadow a vessel, or follow a set patrol route, allowing data to be gathered over a much wider area than could normally be achieved with a fixed point buoy. OSIL’s knowledge of instrumented and


electronics boards allows outputs suitable for most applications and a further configurable option is to allow individual specification of voltage output. All 5000 UNIK sensors feature low noise and high over-pressure capability. l


For more information, visit www.ge-mcs.com


telemetered data buoy systems allows the buoy to be equipped with different instrument options, which include a turbidity probe, an ADCP, or a multiparameter sonde, which could be configured for various sensors, including hydrocarbons, DO, pH and turbidity. l


For more information, visit www.osil.com


applications in particular. Incorporating the well proven Ion Science MiniPID technology at the heart of the instrument, Titan is highly sensitive


and capable of detecting benzene levels down to 0.1ppm and up to 20ppm. Offering rapid and accurate detection, the


system continuously samples and analyses the environment to provide real-time feedback of ambient benzene levels. When a sample is taken, the benzene component is chemically filtered using a robust separation technology so ensuring no false-positives are measured with potential cross- contaminating compounds in the atmosphere. The system features a clear display and provides users with an immediate warning alarm system when hazardous levels of benzene are detected, ensuring the on-going safety and protection of workers. The instrument provides two relays with configurable levels to integrate into site alarm systems. l


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