UK Focus vii Economical SIL-2 rated fl ow switch protects pricey pumps


from dry running conditions that shorten their lives Engineers responsible for optimizing the up time of process fl ow networks in demanding industries will fi nd the FLT93 Series Flow Switch from Fluid Components International (FCI) provides a reliable early warning alert to the potential of dry running conditions, cavitation and other pump issues that can lead to emergency shutdowns, service interruptions and unplanned costly maintenance. Many industries, such as chemical, electric power generation, food/beverage, oil/gas, pharmaceuticals, petrochemicals and water/wastewater treatment plants, depend on pumps to move process fl uids and keep cooling systems up and running. Pumps are expensive to operate and costly to maintain--especially when dry running conditions suddenly occur due to system variable demand, leaks, clogs or other problems that could affect a pump’s seals or bearings. The resulting damage can require expensive, time-consuming repairs, overhauls or replacement at an even higher cost.


FCI’s dual alarm FLT93 Series Flow Switch reliably monitors the fl ow and temperature of liquids, gases, slurries and more. It is ideal for pump wet/dry detection, where sudden, unexpected reductions in media fl ow rates can leave pumps vulnerable to over-heating conditions that shutdown process lines and require trouble-shooting, fi xes and more. This SIL2 rated instrument is designed for heavy-duty, potentially hazardous process industry environments and comes with a comprehensive list of global safety approvals. The FLT93 Switch, with its no moving parts design, offers a highly robust scheme for pump protection with its dual alarm capability. With Alarm 1, the switch will detect a low fl ow situation anywhere between 0.01 and 3 feet per second FPS (0.003 to 0.9 meters per second MPS). This low fl ow alarm can be regarded as a pre-warning signal for the control system or operator. The system or operator can then decide to keep the pump running or to shut it down.


If an Alarm 2 occurs because the feed line to the pump is running dry, this condition would be an emergency signal to shut down the pump immediately because the bearings now see gas instead of a liquid as a heat transfer media. In such situations, the temperature of the bearings may rise very fast. Using a fl ow switch prevents permanent damage to the pump’s bearings that will require an overhaul of the pump before more damage occurs. The sophisticated FLT93 Switch is a dual-function instrument that indicates both fl ow and temperature, and/or level sensing in a single device. Dual 6A relay outputs are standard and are assignable to fl ow, level or temperature. The FLT93 Switch can be specifi ed in either insertion or inline styles for pipe or tube installation.


Designed for rugged industrial applications, the FLT93 Switch is hydrostatically proof pressure tested to 3500 psig [240 bar (g)] at 70°F (21°C). De-rated with temperature, the maximum operation service recommended is 2350 psig [162 bar (g)] at 500°F (260°C). Higher ratings are available with special construction and test certifi cation. Agency approvals include: FM, FMc, ATEX, IECEx, SIL2, Inmetro, EAC/TR CU, CSA, CRN and CE. Highly dependable, FCI’s versatile FLT93 Switches are ideal for applications in many demanding process industries. They also used extensively with or without SIL2 certifi cation in a wide variety of applications in the food/beverage, mining/milling, pulp/paper, pharmaceutical, water/wastewater treatment and more. FCI is the only thermal manufacturer providing built-in temperature compensation to ensure set point accuracy for process temperatures that vary up to ±100°F. The FLT93 is easily fi eld-confi gured, providing unparalleled fl exibility, accuracy and stability for all multiple process sensing and switching requirements.


For More Info, email: email:


For More Info, email: email:


57270pr@reply-direct.com Utilities benefi t from rapid deployment fi nal effl uent monitors


UK water utilities have been enthusiastically adopting a fi nal effl uent monitoring solution that enables wastewater process engineers to constantly check the outfalls from their sewage treatment works (STWs). Matt Dibbs, MD of Meteor Communications, the company which developed the ESNET fi nal effl uent monitoring systems, attributes their success to issues such as reliability, simplicity and cost, but he says: “One of the most popular features has been the speed of deployment. No pre-existing power or communications capability is necessary, and a typical kiosk-based monitoring station can be up and running, delivering cloud-based data, within 30 minutes. This provides tremendous fl exibility and allows utilities to instrument much larger numbers of sites. Performance trends can then be monitored effectively, and incident response is dramatically improved.”


Following the award of a £2 million shared framework agreement by Scottish Water in 2021, Meteor Communications is currently installing a network of ESNET systems for the utility. As the number of fi nal effl uent monitors continues to grow in Scotland, Meteor has also supplied over 200 similar systems to other utilities such as Thames Water and Yorkshire Water. “In the past, the installation and maintenance requirements of fi nal effl uent monitors at smaller wastewater plants were preclusive,” Matt explains. “However, the development of ESNET systems has meant that water companies can now equip smaller, often rural, plants with a comprehensive monitoring capability.”


ESNET monitors are available as either a portable system or a kiosk-based pumped system for semi-permanent or fi xed installations. Both versions contain a robust water quality monitoring sonde, which can be loaded with sensors for parameters such as dissolved oxygen, temperature, pH, conductivity, turbidity, ammonium, blue green algae and chlorophyll. However, it is also possible to include other water quality parameters as well as remote cameras, water level and fl ow, or meteorological measurements. The systems can be purchased, or leased under Meteor’s ‘Water Quality as a Service’ (WQaaS) programme.


Data from ESNET monitors can be viewed securely using the MeteorCloud™ portal on a tablet, PC or smartphone, although, for water utilities, the Meteor Data Centre can be integrated with the company’s SCADA to enhance the visibility of real-time water quality data.


In addition to fi nal effl uent monitoring applications, ESNET systems are also used as remote river monitors by a variety of stakeholders including environmental regulators for pollution source attribution, and to monitor trends and detect pollution incidents. For these reasons, Meteor Communications was recently invited to submit evidence to the UK Environmental Audit Committee as part of its investigation into river water quality. Meteor’s Andrew Scott explained that the monitoring technology is already well-proven and said: “It was pleasing to note considerable support for continuous monitoring in the Committee’s fi nal report.”


Summarising, Matt Dibbs says: “Water utilities invest a great deal of time and money in wastewater treatment, so, now that proven monitoring technology can be quickly and easily installed almost anywhere, risks can be greatly reduced. The effectiveness of wastewater treatment can be monitored continuously, and receiving waters can be protected.”


More information online: ilmt.co/PL/JyKB 57535pr@reply-direct.com


For More Info, email: email:


For More Info, email: email:


www.meteorcommunications.co.uk enq@meteorcommunications.co.uk


Tel: 01727 899990


Monitor final effluent rapidly and effectively!


Quick & easy to deploy Portable or kiosk systems


Data display via MeteorCloud™ & integration directly to existing SCADA


Temp Conductivity Ammonium pH Turbidity DO Nitrate Meteorology + +


WWW.ENVIROTECH-ONLINE.COM


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