level meters Articles

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Indestructible Pumps for Clean Water

by Sulzer Ltd  (Jul. 8, 2015)

Sulzer pumps are used in the production of drinking water in many cities around the world. The special qualities that these pumps possess can be seen at the Zurich Municipal Water Utility. There, the operators have to cope with rising land and energy prices and a challenging topography. A small water flea plays a major role in Zurich. It swims ...

What is a Data Logging Sound Level Meter?

by Cirrus Research plc  (Apr. 15, 2015)

Looking to buy a sound level meter? You’ll probably see the term “data logging sound level meter” quite frequently. But what exactly is a data logging sound level meter and what does it mean for your noise measurements? Sound level meters have come a long way since Cirrus starting manufacturing their own models in the 1970s. The ...

What to look for when buying a sound level meter

by Pulsar Instruments plc  (Jun. 13, 2013)

Sound level meters: a matter of class  Since sound level meters, or slm's were invented, they have existed in various grades of accuracy.  Today, accuracy is referred to as 'Class' and the reason behind all this rests with the ...

CASELLA ENHANCES CEL-630 SOUND LEVEL METERS

by Casella  (Nov. 18, 2011)

Addition of "Voice Recording" functionality allows user to annotate a measurement and eliminate the need for written notes. Following the launch earlier this year of its ground breaking CEL-630 series of exciting new sound level meters, Casella CEL (www.casellameasurement.com; 01234 844100), has made a number of enhancements that will ...

How Often You Should Calibrate A Sound Level Meter

by Cirrus Research plc  (May 14, 2015)

Do you calibrate a sound level meter frequently? Most sound level meter users know they must calibrate their sound level meters but a questions I frequently get asked if “how often?” Here’s my best practice advice so you can calibrate with confidence. What Do We Mean by Sound Level Meter ...

World`s Most Advanced and Easiest to Use Sonic Water Level Meters

by Eno Scientific  (Apr. 1, 2012)

A common theme among drillers and environmental monitoring companies is the need to repeatedly measure water levels and until recently that meant constantly lowering and raising heavy measurement tapes. If you were lucky they wouldn't get stuck or break off leading to spoiled test results and expensive repairs. Eno Scientific has solved ...

Gimmicks and Gadgets -- Flange Level Aligns Bolt Holes to Ease Meter Installation

by American Water Works Association (AWWA)  (May 1, 1990)

To install a meter, the meter is lifted up and inserted between two flanges. Many times, when one flange or the other is rotated a little bit too far or not quite far enough, the bolt holes do not line up. The flange level, developed by the City of Joliet, takes the trickiness out of tightening and leveling meter flanges. Materials, costs and ...

Gimmicks & Gadgets -- Plexiglas Target Eases Ultrasonic Flow/Level Meter Calibration

by American Water Works Association (AWWA)  (May 1, 2007)

This article describes a target device that determines exact water levels through a flume or in a vessel. This device is a simple and efficient way to determine distances between the sensor and the material to be measured, thus ensuring proper signal calibration of the measuring instrument. The article provides a list of materials used to ...

50th anniversary of world`s first sound level meter

by Brüel & Kjær Sound & Vibration Measurement A/S  (Apr. 16, 2010)

Sound Level Meter Celebrates 50th Anniversary 2010 is the year we celebrate the 50th anniversary of Type 2203, the mother of all sound level meters. It was the world’s first precision hand-held and transitorised sound level meter. Produced for 21 years, it sold a record number of 17300 units. With its upgrades Type 2204 (Impulse time ...

Expert assessment: Sea-level rise could exceed one meter in this century

by The Potsdam Institute for Climate Impact Research (PIK)  (Nov. 22, 2013)

Sea-level rise in this century is likely to be 70-120 centimeters by 2100 if greenhouse-gas emissions are not mitigated, a broad assessment of the most active scientific publishers on that topic has revealed. The 90 experts participating in the survey anticipate a median sea-level rise of 200-300 centimeters by the year 2300 for a scenario with ...

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