We have developed many flow meters and controllers to measure the emissions from landfills and other green house gas producers, in addition to being a long standing leader in the testing of emissions for large engines. Water treatment is also an important driver for the company as we continue to develop innovative solutions for waste water treatment.
For over 40 years Sierra has advanced our flow technology to offer customers around the globe the most cutting-edge thermal technology on the market. From heavy industrial to research and analytical applications, Sierra has a wide range of digital air flow meters and controllers with digital output protocols for easy network integration. Sierra offers digital gas flow meters and mass flow meters across two core technologies: Capillary Thermal, and Immersible Thermal. Buy a large selection our air flow meter...
Sierra’s offers a complete line of precision flow solutions for any gas, liquid or steam measurement to improve energy efficiency in all facilities management applications. Our mass vortex meters are used to allocate steam, our in line thermal mass flow meters track and allocate natural gas and compressed air usage, and our clamp-on and insertion ultrasonic meters provide accurate water and water-based fluid measurement.
Although there is enough water on earth, its uneven distribution, the rising population and our carelessness drinking water starts to get short. In the future more and more pipelines for drinking water will be built all over the globe. In order to operate huge and complex pipe networks efficiently, water flow measurement and flow monitoring will become necessary. The increasing efficiency of ultrasonic flow meters will make such calculations more and more effective.
In recent years acoustic flow measurement and flow metering has established itself as the standard method for measurement in many hydrological stations but is also used as the basis for various applications, for example for flood protection and flood forecasting. Ultrasonic flow meters are also used in hydro-engineering constructions. With this almost contact free technology data can be recorded continuously and it provides 24/7 monitoring. Such flow monitoring is particularly important in waterways used for...
A Greyline AVFM Area-Velocity Flow Meter monitors and data logs water discharged from the Bray Quarry to the South Raisin River. The Quarry is required to measure flow for environmental permit compliance.
■■ EMS, Taiwan ■■ Intelligence Electronic Water Meter:
- Class C Electronic Water Meter
- Woltmann Electronic Water Meter
- Multi-Jet Water Meter
- Vortex Flow Meter
- Magnetic Flow Meter
- Ultrasonic Flow Meter
- Gear Free
- Magnet - Free
- DMA (District Meter Areas) management
- NRW (Non-revenue water)
- AMR (Automatic Meter Reading)
- MNF Log (Minimum night flow)
- Monthly Water Consumption Log
- Water Leaking Detector
- Bi-Directional Flow Indicator
- ISO 4064:2005 / ISO 4064: 1993
Hydro power contributes to supplying approximately 3,5 per cent of electric energy generated worldwide. Its share in power generation from renewable resources lies at 18 per cent and will continue to grow as resources of fossil fuels are depleted. Hydro electric performance depends essentially on the usable altitude difference between upper and lower reservoir, and hence the resulting water flow. In order to use the “fuel” water in an optimal way, the flow velocity has to be monitored without any...
In sewage treatment plants, flow sensors are primarily installed for internal reasons. Ultrasonic flow meters are used to control the flow velocity in partially filled and fulfilled pressurized pipes, specific plant components, for leak detection or to control the use of additives. International regulations such as the EU-Directive for handling municipal waste water require flow metering for a continuous surveillance of waste water flow. Defective flow monitoring in sewage-treatment plants can therefore influence...
Greyline AVFM Area-Velocity Flow Meters are installed thoughout the country by Teletronic Denmark to monitor municipal sewage and stormwater. Application photos and descriptions illustrate flow monitoring in manholes and open channels.
The Township of South Glengarry installs a new Greyline AVFM 5.0 Area-Velocity Flow Meter to measure continuous discharge from their municipal sewage lagoon. The sealed ultrasonic sensor is mounted in a horizontal 12` PVC pipe. The AVFM replaced a magnetic flowmeter that was unable to measure seasonal low flow rates.
An Ontario municipality deploys Portable flowmeters to solve flow rate discrepancies between sewage pump station effluent and lagoon influent flowmeters. Faced with suspension of construction permits due to flow rate uncertainty, the Township of North Glengarry called on Greyline Instruments to help troubleshoot two permanently installed flow meters.
Accurate liquid flow sensor measurement can reduce water bills, determine leakage rates, and increase system efficiency. Solve accurate water and industrial liquid flow measurement requirements with clamp-on or insertion ultrasonic flow liquid flow meters featuring precision sensing elements or our complete line of multivariable mass vortex meters.
Drinking water is not the only area requiring flow monitoring. The disposal and cleaning of waste water also requires flow meters. Waste water used to be dumped directly into the soil or an open channel. As awareness has increased, most discharges are now treated to assure long term sustainability. Modern water treatment plants are highly complex systems that require the use of flow sensors to monitor flow velocity in open channels for waste water discharge. Likewise facilities for waste water collection and...
Spire Metering offers several solutions for leakage detection. The flowmeters are used to monitor cooling water in machining process. They are used also in liquid process control and leakage detection applications.
LWT’s dredging systems can be used for wastewater treatment plant, pond, lagoon dredging applications. Complete automated remote controlled dredging systems result in increased plant efficiency, and accommodate increased plant flow. One of the keys to successful automated controls is the ability of the dredge system to feed a constant percentage of solids to the pressing plant, using in-line density and flow meters to allow the operators to dial in the desired rate of solids.
Specialized data loggers for connection with flow meters, rain gauges, water level sensors, and weather stations. Designed for fast deployment at a low cost, these standalone solutions are weather-resistant for reliable operation under hostile conditions. Our real-time telemetry and early warning systems include GPRS data loggers to monitor remote sites.
Thermal mass flow meters provide excellent measurement capabilities in dry gas flows. They have proven durability, accuracy, and repeatability. However, thermal flow meters are sensitive to liquid droplets in a wet gas stream. For a thermal flow meter to work accurately in a condensing gas environment, the probe must be placed far enough downstream so that the entrained water has condensed onto the pipe wall. In a very wet environment, any condensing liquid (commonly referred to as mist or fog) contacting the...