Unique Benefits of Ultrasonic Flowmeters - GPI QStar Meters

Six Unique Benefits of QStar Ultrasonic Flowmeters

1. Ease of use: Quick-start Menu / Online Help / Online diagnostics.
2. All-Inclusive-Concept: Flowmeter / Heat Meter / Datalogger.
3. AND-Technology: Anti-Noise-Deflector: The materials used in all ultrasonic transducers emit an ultrasonic signal reflection that creates "Noise." To reduce Noise, QStar’s Anti-Noise-Deflector Technology provides an acoustic mirror in which the transducer reflects noise signals, so they do not disrupt the regular ultrasonic signal. The angle of reflection determines if the signal is (a regular ultrasonic signal or noise). The noise signal is not the same angle as the regular signal, and therefore reflected in the acoustic mirror. The reflected signals are absorbed into the transducer.
4. AFC-Technology: Automatic Fluid Control: Refraction bends with velocity and an acoustic signal will change its angle.  Sonic velocity is used to calculate the refraction angle of the signal path in the fluid in order to determine the correct position of the receiving transducers. If the sonic velocity of the fluid changes (changes in temperature or in composition of the fluid) the position of the transducer is no longer correct and causes a loss in accuracy.  QStar’s Automatic Fluid Control Technology measures the sonic velocity of the fluid. Comparing this to the "original sonic velocity", it continuously calculates for any "miss-positioning" of the transducers.  As such, AFC compensates for changes and provides good meter accuracy.  
5. On-Line-Diagnostics including oscilloscope mode: QStar offers diagnostic screens for the analysis of data which helps experienced users to handle challenging applications and enable the user to verify the quality and correctness of the ultrasonic measurement. In the diagnostic data venue the sonic velocity of the fluid is displayed. By comparing this data with literature data found in the QStar Owner's Manual, the user can qualify his measurement. The Signal Quality and the S/N-ratio are displayed to enable the user to ensure proper operation of the flowmeter. The Oscilloscope mode provides a visual check of the quality of the signal and to identify interfering or disturbing noise signals or ringing. Experienced users can delete such disturbing signals by using the oscilloscope mode.
6. Coded Bursts / Cross correlation signal detection: Signal noise comes from various sources; frequency converters for pumps, pipe noise, signal scattering from particulate or gas bubbles, etc. QStar’s Cross Correlation Signal Detection uses state-of-the-art signal coding and detection algorithm to identify the valid signal sent from the flowmeter and effectively filters out unwanted noise.

Click here to view the QStar Ultrasonic Flowmeter product specifications

Flowmeter Basics:Flowmeter Types - Part 1 of 2

It is difficult to find a segment of our lives that hasn’t been touched by liquid flow measurement. Applications for flowmeters abound from pharmaceuticals to food processing to irrigation. In this post we will explain the basics of flow measurement. We’ll include some of the advantages and limitations of various technologies. Additionally, we will examine the effects of certain fluid properties on a variety of meters.

Flowmeter Choice

Choosing the best flowmeter for your application depends on a number of factors. Range of flowrate required, pipe size, material compatibility and information format. In almost every case, multiple meter technologies can accurately measure the fluid. To determine the best measurement device that satisfies all of the user’s requirements you need to know the following:

• Technology choices available
• Cost and performance of each type
• Foot print and maintenance requirements of different meters
• Strenghts and weaknesses of each type of meter

Flow Basics

It is important to first understand some basic factors about how liquid flows through a closed pipe. In general, each application will have a set of associated properties consisting of velocity, temperature, viscosity, density, turbulence and flow profile. Each of these variables plays a part in determining which technologies best suit the application and the ability to provide the customer with the required information.

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Oval Gear Flowmeters on Sale!

These flowmeters are great to measure oil,diesel, petroleum or any other viscous liquid. Some of these flowmeters are pulse out only, the ones with a local display give you totals and rate of flow.

To place your flowmeter order call 888-996-3837 or 316-686-7361

GPI Introduces New Insertion Paddle Wheel Flowmeter

IM Series Insertion Flowmeters

Great Plains Industries, Inc. introduces our new IM36S insertion paddle wheel meter. The company which brings you the “plug and play” G2 and the “economical” TM turbine meter changes the paradigm.

In the world of flow measurement, bigger line sizes and better accuracy normally mean more expensive meters. The GPI - IM36S changes that by offering one accurate flow meter for line sizes from 1-1/2” to 36” at one economical price.

The rugged IM36S is constructed of 316L SS with a PVDF rotor, making it ideal for metering many low viscosity liquids in application including: irrigation, water distribution, boiler feed, heat and energy monitoring, chemical batching and blending, and many more.

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