ULTRASONIC Flowmeter The flow meter principle differs from that of the Orifice plate, Venturi meter, Rotameter, Pitot Tube, Turbine, Vortex, magmeter,Thermal and Coriolis in that the flow meter sensors do not need to enter the pipe. The flow meter is completely non invasive
Ultrasonic flow meter is a general term used to describe measurement devices for velocity or flow . However, an ultrasonic flow meter is a device which will either measure the flow velocity , volume or mass flow of a liquid or a gas.
The ultrasonic flow meters are now manufactured in all sorts of types and applications ranging from transit time clean fluid applications or Doppler based flow meters for dirty fluids or hybrids which do both. . Read More>>
The Portalok 7SZultrasonic flow meter is a state of the art ultrasonic flow meter designed for portable liquid measurements. The latest Portalok version has a massive battery life of over a week, USB connection to a computer, more datalogging memory, sensor recognition and positioning system, IP 68 connections and built in oscilloscope for wave identification and advanced troubleshooting. The whole product is protected of course by the crush proof /waterproof Pelican case. You can always rely on EESIFLO to provide you with the best in clamp on flow solutions available in the market. CALL 866-EESIFLO (866-337-4356) for immediate shipment.
Our Innova-Sonic® Portable Model 210i is a portable ultrasonic flow meter featuring improved digital signal processing and a user friendly tactile keyboard on the face for easy data entry and retreival. Sophisticated electronics coupled with powerful ultrasonic transducers deliver highly accurate flow measurement for liquids in full pipes. While principally designed for clean liquid applications, the instrument is tolerant of liquids with a small quantity of air bubbles or suspended solids common in most industrial applications – making it ideal for measuring nearly any liquid. More
Featured Ultrasonic Flowmeter Supplier
EESIFLO: Ultrasonic Flowmeter
Sierra Innova-Sonic Model 210i Ultrasonic Portable Flow Meter
Sierra’s next generation Innova-Sonic 210i ultrasonic flow meter succeeds at delivering portability and expanded functionality at significantly reduced cost.
The 210i is ideal for precisely measuring a wide range of liquid flows and temperatures. Our universal transit-time meter features a pushbutton interface, ergonomic handheld design and a large digital display that significantly simplifies set-up and data collection. And its high-powered ultrasonic pulse with improved digital signal processing requires just one set of transducers for a wide range of pipe sizes and materials including metal, plastic and concrete.
The 210i provides a powerful and extremely user-friendly programming menu that includes instantaneous flow rate, positive total, negative total, net total, velocity, date & time, and daily flow results. It's 2 gig SD memory card promises high capacity data
logging and its rechargeable lithium battery supports continuous operation for a minimum of 16 hours. A fully field portable, lightweight, yet rugged and totally selfcontained flow measurement package, the Sierra 210i comes standard with a sturdy and convenient pelican carrying case, noninvasive clamp-on transducers installed into compact mounting racks (magnetic & cable mount), coupling compound and a startup CD. And itís easy to use. It sets up in five minutes or less.
While principally designed for clear liquids, the 210i operates effectively with the minimal quantity of air bubbles or suspended solids found in most industrial applications.
PRINCIPLE OF OPERATION
Most commonly people will distinguish this technology into two types of measurement technique An ultrasonic flow meter will be categorized into either a Doppler type (which uses the Doppler shift principle) or a transit time device which apparently measures the Delta T or time of flight path. These distinctions have probably been brought about because of the need for simple classifications of ultrasonic flowmeters in the industry. However hybrid ultrasonic flow meters exist which can use both techniques.
Nowadays we can see manufacturers using combinations of both the transit time and the phase shift information and in combination with other ultrasound technologies . Ultrasonic Meters can be insert or clamp on types for general industry applications or the explosion proof type meter.
ULTRASONIC FLOW METER SELECTION
There are many types of ultrasonic flow meters using single or multiple variations on a technology for all types of liquids, gas and even steam.
Transit Time Meter Basic Theory
are made by sending bursts of signals through a pipe
. The measurement of flow is based on the principle
that sound waves travelling in the direction of flow
of the fluid require less time than when travelling
in the opposite direction.
Doppler Flowmeter Basic Theory
Doppler ultrasonic flowmeters operate on the Doppler shift principal , whereby the transmitted frequency is altered linearly by being reflected from particles and bubbles in the fluid.