RS Hydro Flow Measurement, Level & Water Quality News Feed

Troll 9500 Water Quality Monitoring for Remote Locations using GSM/GPRS Telemetry

Sun, 9 Mar 2008 09:16:48 +0000

RS Hydro have recently won two seperate contracts to supply and install Troll 9500 multiparameter water quality sondes in remote locations in the UK. Two further units are being supplied as stand-alone platforms.

New Level Troll 100 Water Level Meter

Wed, 20 Feb 2008 18:13:32 +0000

The Level TROLL® 100 is an absolute (non-vented) level logger for monitoring boreholes, tanks, rivers, streams, lakes and reservoirs for water level, pressure and temperature changes. The Level TROLL® 100 is the latest instrument from In-Situ to provide a more cost-effective approach to standard monitoring applications

Level Troll 300, 500 & AquaTroll Even Testing Upgrade

Sat, 16 Feb 2008 22:35:18 +0000

Users of the In-Situ Level TROLL® and AquaTROLL® 200 water level instrument range will now be able to use event testing with the latest firmware upgrade from In-Situ

RS Hydro attain ISO9000 and ISO14001

Fri, 8 Feb 2008 07:53:52 +0000

RS Hydro is always looking at ways of improving its standard of service. At the start of 2008 RS Hydro underwent its first official external audit of its quality system and was granted ISO 9000 and ISO 14001 certification.

Update on Flowview Development

Mon, 28 Jan 2008 14:27:11 +0000

Flowview is our online data interface, enabling our clients to interact with the data transmitted from equipment supplied by RS Hydro. Significant updates have been made to the interface over recent months.

RS Hydro win meter calibration services contract

Sun, 25 Nov 2007 19:57:51 +0000

RS Hydro have recently been awarded a large contract to provide meter calibration services to RPS Water Services. The contract involves the testing and subsequent recalibration of over 400 electromagnetic flow meters ranging from 100mm to 1200mm in diameter.

Ultrasonic Flowmeters - where are we now - 2007

Sat, 24 Nov 2007 19:55:56 +0000

Engineers and flow metering specialists the world over utilize ultrasonic flow meters to measure process flowrates. The research and development and competition within the ultrasonic flow meter market over the last 20 years has served to clean up the industry’s reputation, principally damaged by the use of inaccurate instrumentation and the use of basic Doppler flow meters. This article gives an accurate representation of the current technology within the ultrasonic flow monitoring industry.

Panametrics GC868 Flow Meters to be installed in Spain for compressed air

Fri, 12 Oct 2007 20:54:27 +0100

RS Hydro have recently won a contract to install three twin-channel GC868 flow meters in Spain for the Med-Gas project measuring compressed air. To obtain maximum accuracy the flow meters will output the average of both channels to optimise accuracy on various 6" (150mm) pipe lines.

RS Hydro install clamp on heat metering network

Sat, 29 Sep 2007 09:26:27 +0100

RS Hydro has successfully installed a network of clamp on ultrasonic heat meters for a leading UK university. Like most large organisations, a central boiler room is used to heat or cool multiple buildings. In this case student accommodation, lecture theatres, laboratories, sports halls and high-rise departmental buildings were to be monitored...

Portable Flow Meter used in Hydro-Electric Schemes

mail@rshydro.co.uk — Sun, 19 Aug 2007 12:23:11 +0100

RS Hydro install ultrasonic flow meters in UK Hydro-Electric Power Schemes on pipes up to 2000mm

Multiparameter Water Quality Instrument added to hire fleet

mail@rshydro.co.uk — Sun, 19 Aug 2007 12:29:16 +0100

RS Hydro has recently added the Troll 9500 to its hire and rental fleet: measuring turbidity, DO, pH, ORP, level, temperature and many other parameters.

Landfill Gas Flow Measurement

mail@rshydro.co.uk — Sat, 11 Aug 2007 12:00:12 +0100

RS Hydro install clamp on gas flow meters to measure landfill gas

New Water Level Tapes from In-Situ

mail@rshydro.co.uk — Sat, 11 Aug 2007 10:34:01 +0100

RS Hydro is pleased to announce the release of two new Dip Tone Meters: the Level Tape 100 and Level Tape 200 for level measurement in boreholes and other surface water applications.

ISX878 Intrinsically Safe Clamp on Flow Meters used to measure methanol

mail@rshydro.co.uk — Sat, 23 Jun 2007 01:05:42 +0100

RS Hydro supply 10 Panametrics ISX878 intrinsically safe clamp on flow meters to measure methanol in 2 inch pipes.

RS Hydro to launch new website on 1st June 2007

mail@rshydro.co.uk — Wed, 30 May 2007 07:59:27 +0100

As part of the company's continual development, RS Hydro are re-launching a new website on 1st June 2007 with a larger technical support section... which is more user-friendly and with greater technical support features including a technical help section, a forum and a livechat system.

RS Hydro become the UK distributor for Panametrics (part of GE Sensing).

mail@rshydro.co.uk — Mon, 9 Apr 2007 14:54:41 +0100

RS Hydro is now a class 1 UK distributor for all GE products. Now supplying products from GE Panametrics and GE Druck, RS Hydro can now provide a comprehensive range of liquid and gas ultrasonic flow meters for any application whether they need to be intrinsically safe, explosion proof, have high IP ratings, clamp on or flanged.

RS Hydro become UK environmental distributor for In-Situ Inc Water Quality Sensors!

mail@rshydro.co.uk — Thu, 29 Mar 2007 16:38:24 +0100

RS Hydro is now the environmental distributor for In-Situ® Inc. in the UK for all water quality sensor and water level instruments. RS Hydro can now provide an extensive range of innovative water quality and water level sensors with integrated dataloggers and telemetry options includiing SMS and GPRS. Flagship models like the multiparameter Level TROLL 9500 and the Aqua TROLL 200 sensor are at the centre of RS Hydro's water quality monitoring product range.

RS Hydro Wins Contract for Sludge Flow Monitoring

Wed, 15 Mar 2006 21:54:54 +0100

RS Hydro has won a contract within the UK industrial sector, to supply and install various flow meters for slurry flow measurement. After attending site it was concluded that the Nivus OCM EM and Siemens 911/E flow meters would be best suited for this application, due to their reliability, flexibility and ability to withstand flow with very high solid content. The Siemens electromagnetic flow meter 911/E was selected because it is especially suited to the measurement of slurries and effluent discharge consent. The Siemens 911/E, like other electromagnetic flowmeters, rests upon Faradays Law of Induction, in which an electric voltage is induced in a conductor moving through a magnetic field. The magnetic field enables the 911/E to measure velocities up to 12m/s, and the minimum conductivity required is just 0.01µS/cm with a pulse alternating field or 3µS/cm with a pulsed constant field. The advantages of the 911/E are a 16-bit microprocessor with alphanumeric display; automatic recognition of sensor type; and simple menu operation.
On the other hand, the OCM EM can be used on either partially full pipes or open channels. In this project it will be installed on pipes that are partially full and open-ended. It is reliable and dependable, able to measure continuously. RS Hydro has also taken steps to protect the flowmeters, with the use of vandal-resistant bollards. The use of this range of flow measurement techniques with vandal resistant protection represents a total solution and reaffirms RS Hydros position as a major player in flow measurement. To view this and other examples of RS Hydros installations, please visit our News Room.

RS Hydro install Nivus OCM Pro using renewable energy

Wed, 15 Mar 2006 21:54:54 +0100

Working in collaboration with BP and ERM, RS Hydro have recently installed 2 of the most technologically advanced open channel flow meters available. The NivusOCM Pro is regarded as the most accurate contact open channel flow meter in the world with its ability to measure velocities in a channel and create a 3D profile.
In addition both flow meters were installed with GSM dataloggers which enables the client and Environment Agency to see all flow data on a daily basis.
For a comprehensive overview of our open channel flow measurement capability, including installation, hire, sales and calibration, please contact RS Hydro through our website.

Latest Gas Clamp-On Tag Flow Meter

Thu, 8 Dec 2005 20:29:56 +0100

RS Hydro has recently won a contract to supply the Panametrics CTF878 Correlation
Tag flowmeter for clamp-on gas flow measurement in the Middle East used for a
natural gas production facility. The CTF is capable of mass flow measurement in
metal pipes at all pressures including ambient. Whereas other ultrasonic clamp-on
gas flow meters use transit-time technology, correlation tag technology is able
to measure flows at lower gas densities than the transit-time equivalent. Being
a clamp-on device, it is not restricted by pipe size or composition.
The CTF878 flowmeter uses four clamp on ultrasonic transducers arranged as two
pairs. Each pair acts as a transmitter and receiver. The transmitters send an
ultrasonic signal in a continuous wave mode through the fluid to the receivers,
forming an interrogation path. The continuous wave signal is modulated by turbulence
and local density variations characteristic of moving gas, producing a unique
turbulence signature. The flow velocity is then determined from time and distance
measurements.
The CTF878 measures gas flow non-invasively in pipes from six to 30 inches in
diameter, over the range of 3.5 to 150 feet per second (1.1 to 46 meters per second).
The flow meter is designed for applications such as natural gas transmission and
distribution, compressed air, fuel gases, corrosive or toxic gases, high-purity
gases, and air separation gases.
Correlation tag technology is effective in gas applications because of the compressibility
of gases, which helps create the distortion of the ultrasonic signal needed for
the flow measurement technique. The CTF878 gives customers the ability to handle
a significantly wider range of clamp-on gas flow applications than was possible
before. The main advantage of the CTF878 over transit time flow meters is its
ability to measure flows at ambient or low pressures.

The theory behind Ultrasonic Flow Meters

Thu, 21 Jul 2005 13:04:21 +0100

End users and flow metering specialists all over the world utilise non-invasive techniques to establish flowrates utilising clamp on flow meters or ultrasonic flowmeters. The two most common technologies used are that of transit time (or time of flight) and doppler. Transit time clamp on meters use the difference in time for an ultrasonic pulse to travel with the direction of flow and against it. When the velocity is zero, the transit time of an ultrasonic pulse is the same in both upstream and downstream directions. With flow, the upstream sonic pulse will travel at a slower rate than that of the downstream pulse. When flowrates increase further, this transit time differential increases linearly. As the cross-sectional area is already known, the product of the velocity (transit-time differential) and area equates to a volumetric flow. It is widely accepted that transit-time flow measurement devices are more accurate than clamp on doppler equivalents.

Unlike doppler flow meter which require entrained particles or solids, transit time flow meters cannot measure velocities accurately as particles interfere with the ultrasonic path. Whereas doppler flowmeter have a combined transmission/receiver unit, transit time flow meters have two which can be configured in different ways to suit the measurement application.

As ultrasonic technology does not obstruct flow, there is no pressure loss or indeed any requirement to break into the pipeline to obtain flowrates. It is therefore possible to use clamp-on transducers to measure liquids with corrosive and abrsaive properties without having to used wetted transducers. Permanent or temporary flowmeters can be used in all situations where suitable pipework can be exposed or utilised. In theory, the minimum distance required to measure liquid flow is 10 diameters upstream and 5 downstream from the nearest pipe disturbance but this should be increased where there are significant numbers of bends or fittings or where bends are in two planes. Where suitable distances of straight pipe cannot be located, mult-path devices can negate the effects of the disturbed flow.

Transducer Setup

The basic configuration is the 'Z' configuration where the transducers are placed on opposite sides of the pipe (typically between 3 and 9 o'clock), with one at a set distance downstream from the other. This distance is generally half the diameter of the pipe but can vary according to pipe wall and lining materials. The 'Z' configuration is generally only used for difficult situations where signal strength is poor (high turbidity or poor pipe condition), typically dirty abstraction water or sewage. For most applications the 'V' traverse configuration is used, whereby the transducers are located on the same side of the pipe at a designated space apart. The 'V' configuration has many advantages over the 'Z' configuration including, increased sonic path length, less inaccuracies of spacing and locating sensors, and shorter setup times. A third configuration known as the 'W' setup involves a double reflex sonic path but is only used on smaller pipes (below 2" or 50mm) to increase the path length.

Transducer Types: Wetted and Dry

Dry clamp-on transducers can be mounted on the outside of any pipe in reasonably good condition: clean, smooth and with good sonic properties - typically steels, plastics and irons. A sonically conductive couplant is also required to provide a sonic bond between the exterior of the pipe wall and the transducer.

Where it is not possible to locate clamp on transducers, spool pieces or wetted transducers can be installed. Wetted transducers can be installed by drilling and tapping the pipe at the point of measurement. Although the pipe may have to be drained, signal quallity and hence accuracy are increased. However, the associated installation and purchase costs of wetted transducers & spool pieces can be much higher than dry clamp on devices.

Applications for Ultrasound including Gas

One of the reasons for the rapid development and success of ultrasonic flowmeters is that they are suitable for the measurement of most liquids including water, hydrocarbons, corrosive and abrasive liquids. The only prerequisites for successful measurement are that the pipe is full, the media conducts sonic energy and that the pipe wall is in good condition. Doppler meters also require there to be enough entrained material to reflect the sonic transmission off. Whereas transit time flowmeters work well between 0-5%, doppler flowmeter work well in the 0.1-10% band.

Clamp on technology has been extensively developed to measure gas applications. Gas clamp on flowmeters from Panametrics are now capable of measuring mass gas flow in pipes above 1" with minimum pressures of 6 bar.

IPPC & MCERTS Services...

Thu, 13 Oct 2005 12:34:35 +0100

IPPC and MCERTs to many companies instills a combination of intrepedation and extensive costs. However, if the process is conducted efficiently, costs and timescales can be reduced dramatically. RS Hydro provide a total measurement solution for IPPC and MCERTS.

RS Hydro's specialist flow measurement consultants have helped hundreds of clients to measure and conform to current legislation. As a multi disciplined consultancy our team consists of highly experienced consultants who have time spent knowledge within the utility industry. We are able to design and install bespoke flow measurement installations in open channels, sewers and pipeflow systems. In addition, we can provide the latest datalogging technology allowing clients to see their flow data live with integral instantaneous alarms to notify high or low flows.

If you are confused by IPPC or MCERTS, contact us now on +44 (0) 1905 774002 and ask for a consultation.

New Flowmeter Calibration & Meter Testing Flow-Rig in the UK

Thu, 21 Jul 2005 13:04:21 +0100

RS Hydro use a method known as wet calibration to test all flowmeters
under 'ideal' flow conditions. The digital output from the flowmeter is captured
and calibrated against RS Hydro's calibrated reference meter, which is traceable
to national and internal standards. Any deviation from the reference meter readings
are then used to correct the calibration factor of the 'meter under test.'

The company is able to calibrate all makes and model of flowmeter between 25-200mm
in diameter using flowrates of 0.1 to 80 litres/sec. We are also able to calibrate
insertion probes: quadrina and ABB AquaProbes in our 200mm line.

Beyond laboratory calibration, RS Hydro also offer in-situ verification / calibration
for all flowmeters that cannot be shipped to a calibration facility due to cost
or logistics. RS Hydro currently undertake several contracts for UK water companies
(read more)

RS Hydro win open channel flow meter contract

Mon, 18 Jul 2005 17:03:00 +0100

RS Hydro wins flowmeter installation contract

RS Hydro has recently won an industry leading contract to install 100 open channel and water flow meters for a major conglomerate in the UK. Installations will include the Siemens Milltronics OCM3, ABB's new AquaMaster Explorer and the Panametrics AT868 clamp on flowmeter.

RS Hydro will be installing flow structures and measurement devices in remote locations. All devices are to be powered using renewable forms of energy: wind and solar power. The flow meters will also have GSM (SMS) dataloggers that will upload data on a daily basis. Alarm level capabilities allow the client to be alerted of any pump failures or low/high flow exceedances. All installations will be up to MCERTS standard.

The data will be viewable on RS Hydro's own data solutions site. The user is able to access data using a user specifiable login account and password. Data can then be graphed, summarised and exported online. In addition, the data is automatically downloaded to the client's own intranet. This service is fully customisable for user preferences.

Another total solution from RS Hydro...

RS Hydro acquire the latest Portable Gas Flowmeters. Available for hire.

Mon, 20 Jun 2005 15:33:41 +0100

RS Hydro has recently acquired the latest portable flowmeter for gas flow measurement.
The Panametrics PT878GC has measure any gas in pipes between 20-600mm with optimum accuracy.

Ultrasonic Flowmeter Hire

Tue, 31 May 2005 08:42:51 +0100

RS Hydro supply and hire out ultrasonic flowmeters for liquid and gas measurement applications.

Try our quotation system, click on the following link. You will not be disappointed!
Click here to go to the Online Store

Flow & Level Measurement Forum

Wed, 8 Jun 2005 18:23:20 +0100

RS Hydro has launched a Flow, Level and Environmental Measurement Forum. Users can ask for technical advice on anything to do with open-channel and pipe flow measurement, level measurement and environmental monitoring equipment. Fellow users and technical experts are on hand 24/7 to offer free advice.

RS Hydro launches One-Stop Flow Measurement Shop

Tue, 31 May 2005 08:42:51 +0100

RS Hydro is now recognised as a leading provider of flow measurement solutions across all sectors of the UK's economy. The companies ability extends from onsite surveys, flowmeter installation, flowmeter calibration through to flowmeter hire and sales.

Building on this success, RS Hydro launched a web-based instrumentation store whereby prospective clients could request quotations for the hire, purchase or calibration of flow and level measurement equipment. Indeed, we are so confident of our quality service that we guarantee to provide a fully-specified quotation within 3 hours of submission. It is this approach to business that ensures that RS Hydro will stay at the forefront flow and level measurement.

Commenting on the website, RS Hydro's Managing Director Rob Stevens said " At RS Hydro, we recognize that client organizations operate in an increasingly global market where competition, technology, environmental issues and quality systems are the predominant determinants in successful business development. Our aim is to provide total and dynamic solutions.
Our aim from the start of the project has been to display RS Hydro's capability and to provide a clear insight into the way we do business, enhancing communication with our customers, potential recruits and industry links."

To try our quotation system, click on the following link. You will not be disappointed!

Click here to go to the Online Store

RS Hydro, is on the move

Tue, 31 May 2005 08:42:51 +0100

Due to demand, RS Hydro has relocated to purpose built offices and workshops in the picturesque location of Salwarpe, Worcestershire. RS Hydro's new offices incorporate's a new calibration facility for flowmeters between 13-200mm in diameter and up to 100 l/sec (360cum/hr). This enables the company to provide calibration on a vast range of flowmeters including mechanical, ultrasonic and insertion probe flowmeters. It is possible to request a quotation by either visiting our flow meters, by emailing your requirements to info@rshydro.co.uk or by contacting us on +44 (0) 01905 774002

Meter Calibration Contract Extended

Tue, 31 May 2005 08:42:51 +0100

RS Hydro has been awarded the annual meter verification project for South West Water
For the fifth year in a row, RS Hydro has been awarded the annual meter calibration project for South West Water.
Indeed, RS Hydro have been awarded a three-year contract to test all supply and abstraction meters up until 2008.

Visit Us