Drinking Water Measurement Application Notes
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Chlorine Method For UKAS Accreditation And DWI Compliance At Welsh Water
4/13/2017
In 2013 the Drinking Water Inspectorate for England & Wales announced that water samples collected in England and Wales must be tested in a laboratory that meets specific standards for drinking water sampling and analysis. At the time of the new instruction, the chlorine method employed at the Welsh Water Bretton laboratory was unable to meet these requirements, notably for the prescribed limit of detection. This prompted the laboratory to investigate new analytical options for monitoring residual chlorine.
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VFD Energy Savings For Pumping Applications
4/6/2017
In the early days of variable frequency drive (VFD) technology, the typical application was in process control for manufacturing synthetic fiber, steel bars, and aluminum foil.
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Protecting Pumps From Dead Head Conditions
4/6/2017
The C445 motor management relay offers the most configurable protection options in the industry, with features specifically designed to protect critical pumps from costly damages due to dead-head and other underloaded or starved pump conditions.
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Active Energy Control – Energy Reductions Of Up To 10% Above Standard Drives
4/1/2017
Energy costs continue to increase. At the same time, there is increased pressure to reduce utility bills without sacrificing operations or comfort.
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Advances In Paper-Based Devices For Water Quality Analysis
2/22/2017
Water quality test strips have been around for decades. They are usually constructed from a porous media, including different types of paper, and undergo a color change when dipped into water containing the analyte of interest. These test strips have seen application in swimming pools, aquariums, hot tubs, remediation sites, and other commercial/environmental areas.
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New Water Turbidity Measurement Technology — The US Experience
2/3/2017
The amount of insoluble matter present in drinking water is an essential quality indicator. Silt, sand, bacteria, spores, and chemical precipitates all contribute to the cloudiness or turbidity of water. Drinking water (DW) which is highly turbid can be unpalatable and unsafe. Consumption of even low concentrations of certain bacteria and other microorganisms can cause serious health effects. Consequently, an accurate and sensitive measurement of turbidity is vital for ensuring that drinking water is free of these contaminants.
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Ultrasonic Level Measurement In Water And Wastewater Plants
5/19/2016
Radar technology is often viewed as the “best” method of level measurement, but this isn’t necessarily true in the water industry.
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All WirelessHART Devices Are Not Created Equal
12/4/2015
Though they all must support routing functionality, some devices do it better than others.
Routing consumes more energy, so the lifetime of the battery will be affected. Therefore, a device with a battery that is inexpensive, has a long lifetime, and is easy to change would be ideal. With all this considered, a WirelessHART temperature transmitter is a suitable option to operate as a repeater.
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Secret To Disinfection Monitoring For High Chlorine Residual Wastewater Applications
8/2/2015
Some wastewater applications require chlorine residuals greater than can be effectively monitored using DPD due to the oxidation of the Wurster dye to a colorless Imine. Such applications include industrial wastewater processes that inherently have a high chlorine demand thereby requiring a more robust monitoring method.
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Accurately Measuring Network Leakage
6/26/2015
The pressures of supplying a growing global population mean that the world’s water supplies need to be managed more closely than ever.