Measurement and Testing
Submersible Oil-in-Water Probe Monitors Process and Waste Water
One drop of mineral oil can spill 1000 l of water. Even the slightest contamination by mineral oil in surface, process and industrial water can be detected reliably, continuously and uncom - plicatedly by the new FP 360 sc immersion probe from Hach Lange (Germany).
FP 360 sc uses a highly sensitive ultraviolet fluorescence method for oil detection. Because most mineral oils contain polycyclic aromatic hydrocarbons (PAH) their conc -
entration can be used to calculate the oil content of water. When PAHs are exposed to ultraviolet radiation, they emit fluorescent light at an intensity which is directly related to their concentration. Measuring the intensity of this fluorescence is a much more sensitive method of determining PAHs than measuring absorbance or scattered light.
The FP 360 sc immersion fluorometer is suspended directly in the measurement medium with the help of a chain mounting set. No time-consuming installation is needed. With the help of an optional flow cell, the probe can also be installed for bypass applications. The standard model is in stainless steel, and a titanium housing enables the probe to be used in aggressive media.
Quick detection of oil spills in process and waste water allows for taking fast
countermeasures and huge savings in cleaning costs and possible fines. The FP 360 sc probe is used in combination with the proven SC controller. Extensive communication variants enable integration into existing BUS systems and into a network via Ethernet or in wireless form using GPRS for site-independent installation.
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New Oxygen Analyser for use with Flammable Gases and Helium
Cambridge Sensotec’s (UK) new Rapidox 1100E oxygen analyser offers
outstanding performance across the range 0.1% - 100% O2. This instrument uses the world-renowned Yuasa electrochemical oxygen cell which is resistant to
poisoning from CO2 and has a very long life. The Rapidox 1100E is suitable for use where explosive gases or helium may be present and responds quickly to
changing O2 levels. The powerful internal pump and versatile programmable outputs enable it to be used in a wide range of applications, and it is supplied with extensive RS232 communications and datalogging functionality.
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Storage Project to Secure Baltic Gas Supplies
Underground gas storage has provided one of the latest success stories for Rotork’s (UK) valve actuators in Latvia. The unique geological conditions in the country are ideal for the underground storage of natural gas, for both the country’s domestic use and for gas en- route from Russia to other Baltic countries.
These facilities are being developed to secure the supply of natural gas to Baltic countries by the upgrading of existing facilities. Capacity of the storage site at Incukalns is 4.4 BCM (Billion Cubic Metres) after reconstruction. This project has involved the installation of 330 IQ and IQT ATEX certified explosionproof intelligent electric valve actuators, in contracts awarded to Rotork’s Latvian agency Rino TK.
The majority of the actuators operate ball valves controlling the receiving of the gas and its injection into the storage wells. Additional IQM modulating actuators are installed on ball valves in the site’s metering plant. All actuators are connected to PLCs and controlled by a centralised SCADA system designed and manufactured by Olimps. The larger, gas receiving ball valves, in sizes up to 1000mm, are operated by IQ actuators in combination with IW quarter-turn gearboxes manufactured by Rotork Gears. Smaller ball valves are operated by IQT direct drive quarter-turn actuators.
Experience with Rotork actuators in Latvia, combined with a reputation for quality, ease of installation and value for money, contributed to the decision to specify the IQ and IQT actuators at Incukalns. Equally important, the presence of dedicated and expert local support provided by Rino TK offered additional assurance to the customer and end-user.
The plant upgrade at Incukalns has been carried out by OAO Giprospecgaz, a specialist subsidiary of OAO Gazprom, Russia’s largest extractor of natural gas. The four part project commenced in 2004 and was completed in 2008.
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Crude Oil Tracking Sensors for Gulf Oil Spill
Chelsea Technologies Group (UK) range of hydrocarbon fluorimeters are being deployed in the Gulf of Mexico to monitor the extent of the oil spill. Originally designed for military use these highly reliable, robust, high sensitivity fluorimeters have a proven track record of detecting crude and refined oils in a wide range of environments. The UV AQUAtracka and the UviLux are just two of the submersible fluorimeters in Chelsea’s portfolio. These sensors monitor the
concentration of refined (360nm) or crude hydrocarbons (440nm) in a range of coastal, oceanographic and fresh water applications. They have been designed to be deployed independently as well as from submersible vehicles, diver held, moored, profiled or as part of a flow through system. These robust, compact, lightweight instruments are ideal for both shallow and full ocean depth. They are easy to use and give accurate and repeatable measurements. The Chelsea fluorimeters are also ideally suited for long term deployment and will be used to monitor the extent of the pollution caused after the oil slick has dispersed. The UV AQUAtracka displays real-time, live data via the Chelsea supplied GUI. Similarly, real-time data from the UviLux can be transmitted via a Bluetooth wireless link to either a PDA or a PC, thus giving the user freedom in the field to make high precision measurements anywhere, anytime.
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Planning Made Easy with Simple Technology
Manual planning boards in the computer age? Surely they disappeared with flairs and tank tops!
They did. Software systems replaced that need but planning boards increasingly occupy a new position working alongside the computer. The following customer statement, expressed to the Eurocharts staff summarises this new demand:-
‘Although we plan with the computer we still lack an overview or ‘big picture’ of our complete planning schedules and scrolling or out dated print-outs are of no use for team and production meetings’
This new planning board niche is to provide that elusive ‘picture on the wall’. A complete overview of (usually) computer generated schedules displaying a perpetual plan in a large and rapidly updated format. These systems are available as ready boxed kit solutions or designed individually to meet any specific application. Project Planning, Production Boards, Maintenance Schedules and Staffing Displays are but a few of their popular uses.
Kanban Boards, Lean Management and Continuous Improvement management methods are increasing the demand for the new office and factory Workstation Information Display Systems. Wall mounted or free standing visualisation boards and magnetic backed document pocket holders and accessories form professional, colour coded information displays enabling documentation to be totally visual, protected and simply updated.
Eurocharts (UK) have available by request their new, Planning and Visualisation Board Systems Catalogue supported by a no obligation free planning advisory service and provision of samples.
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June/July 2010
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