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Using a flow meter is the simple and accurate means to measure and record flow rates in pipe work. Here at Coltraco Ultrasonics we are an ultrasonic flow meter supplier, for the Portasonic® 2.FL0. The Portasonic® 2.FL0 is the second generation of ultrasonic flow meter. We welcome you to get in touch to discuss how we can help you improve your pipework testing.
Ultrasonic Flow Meters UK
The ultrasonic technology market share is growing as the technology replaces older flow technologies. Improved electronic processing, increased diagnostics and a growing confidence in ultrasonic performance contribute, in part, to this growth. At Coltraco Ultrasonics our ultrasonic flow meters are non-invasive, with sensors that clamp onto the side of the pipe. This avoids the need to cut into the pipe and interrupt the flow.
Ultrasonic Flow Meter Principles
The basic principle of operation employs the frequency shift (Doppler Effect) of an ultrasonic signal when it is reflected by suspended particles or gas bubbles in motion. This metering technique utilizes the physical phenomenon of a sound wave that changes frequency when it is reflected by moving discontinuities in a flowing liquid. Ultrasonic sound is transmitted into a pipe with flowing liquids, and the discontinuities reflect the ultrasonic wave with a slightly different frequency that is directly proportional to the rate of flow of the liquid. Current technology requires that the liquid contain at least 100 parts per million of 100 micron or larger suspended particles or bubbles. The Doppler ultrasonic flow meter operates on the principle of the Doppler Effect, which is the physical phenomenon of a sound wave changing frequency. In the case of ultrasonic flow meters, the frequency of an ultrasonic signal changes (Doppler Effect) in direct proportion to the rate of flow of the liquid when reflected by suspended particles or gas bubbles in motion.
What is an Ultrasonic Flow Meter?
Ultrasonic flow meters are non-intrusive devices that use acoustic vibrations to measure the flow rate of liquid. There are two types, Doppler and transit time. Ultrasonic meters are ideal for wastewater applications or any dirty liquid which is conductive or water based but will generally not work with distilled water or drinking water. These flow meters are also ideal for applications where low pressure drop, chemical compatibility, and low maintenance are required.
With no moving parts and an easy digital set up mean it’s a cost-effective and time-effective maintenance solution. Reduction of maintenance time and cost is a driving factor within any business operation with pipework installed. Accurate flow data provides the chance to make energy-saving measures by fine-tuning the systems. The Portasonic® 2.FL0 is a handheld ultrasonic flow meter for testing on a wide variety of different pipe dimensions, liquid types, measurement methods, flow speeds and environments. The unit has a straightforward testing process with a step by step guide on how to set your flow meter up before measuring. The user simply needs pipe diameter, wall thickness and liquid type information, to be able to easily and accurately measure flow rate. Portasonic® 2.FL0 can be used for spot checks, using an internal, rechargeable battery or for extended continuous operation as a 4-20mA flow transmitter with AC power input. The ease of use and accuracy of Portasonic® 2.FL0 allows for improved business continuity and safer buildings and industrial facilities across a variety of industry verticals. With the ability to conduct spot checks at mandated intervals, the full integrity of pipework can be ensured.
Why Choose Ultrasonic Flow Meters?
There are multiple industrial applications that call for accurate flow measurement. However, traditional methods are not always an option, hence the need for nondestructive, noninvasive technologies and methods. Ultrasonic flow meters are the equipment of choice whenever contact with the measured fluid is not possible. Transit time ultrasonic flow meters are used in the majority of liquid flow applications because of their ability to obtain accurate measurements. With this technology, ultrasonic waves transmit upstream and downstream through the pipe wall and liquid in the pipe. By measuring the difference in the travel time and knowing the pipe size, the meter determines the velocity and flow. One of the more common purposes of an ultrasonic flow meter is to measure the velocity of a fluid in order to calculate the volumetric flow rate of a medium through a tube. This can be done through the use of a basic principle involving the transit-time of crystal transducer signals across the medium. Transit-time is a common flow meter measurement method that gives extremely accurate and repeatable results. Since this type of flow meter can work with a variety of fluids at a range of different temperatures, typically they will be calibrated for those specific variables.
Advantages of Ultrasonic Flow Meter
The Portasonic 2.FL0 is an accurate, reliable and robust portable ultrasonic flow meter. The ability to conduct spot checks of systems at mandated intervals ensures the full integrity of sprinkler systems. The ease of use and accuracy of Portasonic® digital liquid flow meter allows for improved business continuity and safer office buildings and industrial facilities across a range of applications. Reducing maintenance downtime reduces disruption to a commercial operation, at the same time as improving safety, particularly in high-risk environments, and industries. This will help to educate the industry further and reduce fire incidents With no moving parts and an easy digital set up for liquid flow measurement, it’s a cost and time effective maintenance solution. Reduction of maintenance time and cost is a driving factor within any business operation with pipework installed. Accurate flow data provides the chance to make energy saving measures by fine tuning sprinkler systems. Portasonic® 2.FL0 can be used for measuring flow in a pipe, to spot checks using the internal, rechargeable battery or for extended continuous operation as a 4-20mA flow transmitter with AC power input. The ease of use and accuracy of Portasonic® 2.FL0 allows for improved business continuity and safer buildings and industrial facilities across a variety of industry verticals. With the ability to conduct spot checks at mandated intervals, flow rates in pipework can be maintained to ensure they meet the required standard.
7 key benefits of the Portasonic® 2.FL0
- Non invasive flow measurement from outside of a pipe as a clamp on flow meter.
- Long term battery life, light weight, compact and reliable.
- Robust: prevent water ingress into the charging port with a watertight flap.
- Easy to use with simple set up thanks to unique clamp-on design
- Variable use in different environments: 3 different modes of operation and sensors for pipe sizes.
- Allows pipe wall integrity testing by the ability to conduct spot checks at mandated intervals.
- Cost saving: cost and time effective with easy digital set up.
How Ultrasonic Flow Meters Work
Our range of ultrasonic flowmeters use sound waves to determine the velocity of a fluid flowing in a pipe. At no flow conditions, the frequencies of an ultrasonic wave transmitted into a pipe and its reflections from the fluid are the same. Under flowing conditions, the frequency of the reflected wave is different due to the Doppler effect. When the fluid moves faster, the frequency shift increases linearly. The transmitter processes signals from the transmitted wave and its reflections to determine the flow rate. Transit time ultrasonic flowmeters send and receive ultrasonic waves between transducers in both the upstream and downstream directions in the pipe. At no flow conditions, it takes the same time to travel upstream and downstream between the transducers. Under flowing conditions, the upstream wave will travel slower and take more time than the (faster) downstream wave. When the fluid moves faster, the difference between the upstream and downstream times increases. The transmitter processes upstream and downstream times to determine the flow rate. They represent about 12% of all flowmeters sold.
For Ultrasonic Flow Meters, Choose Coltraco UltraSonic Technology
Here at Coltraco Ultrasonics all of our products are carefully handbuilt and undergo rigorous quality testing to ensure they meet the high standards expected by our customers, and provide them with long term reliability. As a professional and recognised leading ultrasonic technology company, based in the UK we have an outstanding track record of delivering the highest quality inspections locally and worldwide. For the last 30 years we designed handheld, reliable, accurate portable inspection products. In 2020 after listening to our customers we will move to constant monitoring systems. Therefore, should you be searching for ‘Ultrasonic Technology’, be sure to call our team at Coltraco and see how our team can help you today.
What does a flow meter do?
The Portasonic® 2.FL0 measures flow rates of clean liquid in pipes (liquid with not more than 5% solids or 2% gas).
How does an ultrasonic flow meter work?
The portable transit line ultrasonic flow meter, Portasonic® 2.FL0 comes with clamp on ultrasonic transducers for non-invasive measurement. The ultrasonic flow meter principle is simple, the unit uses two sensors, one that acts as ultrasonic transmitters and the other a receiver to measure flow. There are three methods of operation; V-method, W-method or Z-method which refers to transducer positioning. The software calculates the time it takes for the ultrasonic pulse to pass from the transmitter to the receiver, which is dependent on the flow rate.
Is the Portasonic® 2.FL0 a high accuracy flow meter?
The Portasonic® 2.FL0 is a highly accurate liquid flow meter with an accuracy of +/-1% of reading at rates > 0.2 m/s, and the meter calibration takes place at an ISO 17025 certified lab.
What is the benefit of non-invasive testing?
The benefit of the Portasonic 2.FL0 is non-invasive testing with clamp-on external sensors: stopping the difficulties of cutting sections of pipe, risking pressure drop or contamination.
Is the Portasonic 2.FL0 a high temperature flow meter?
For fluid temperature exceeding 90°C, high temperature sensors are available up to 160°C.
What are the available ultrasonic flow meter sensors?
There are a range of sensors available to cater for small, medium and large pipe sizes. The pipe diameter range runs from 15mm-700mm. Please ask for the wide range of sensor options.
How do you measure water flow?
As mentioned above, depending on the application and flow profile, the flow sensors can be mounted in the following ways:
i. V-method: the ultrasound transverses the pipe twice
ii. W-method: the ultrasounds transverse the pipe four times
iii. Z-method: transducers are mounted on opposite sides of the pipe and the ultrasound transverses only once
The modes are automatically selected by the liquid flow meter and are also user selectable.
Why buy the Portasonic® 2.FL0 and not a cheaper unit?
The ultrasonic flow meter price is related to its key features: that is calibrated to ISO17025 which is a better calibration standard, hence more reliable.
Demonstration of the Portasonic® 2.FL0?
This video is an example of the flow meter working on a test rig with three top tips for setting up the Portasonic® 2.FL0 sensor:
What are the applications of the Portasonic® 2.FL0?
There are a range of applications for the Portasonic® 2.FL0. Some of them include fire sprinkler systems, leak detection, marine maintenance, balancing systems and hydraulic system testing.
Testing fire hydrants & pumps
In accordance with BS9990:2015 a regulation for fire hydrant and pump testing, the transit time Portasonic® 2.FL0 flow meter is a simple & accurate means to measure and record flow rates in wet fire mains and pumped water pipelines.
For pressure regulating valves, according to BS9990 there is an allowable tolerance for flow and pressure at the landing valve of (750 ±75) L/min at (8 ±0.5) bar. Equally for pumps for wet risers, the pumps have to be capable of delivering 1 500 L/min which is enough to supply each of two fire service hoses with 750 L/min. For water tanks an on-site supply of stored water must be capable of supplying enough water to provide two landing valves with not less than 750 L/min each for at least 45 minutes.
It is essential that wet risers are operational in the event of a fire. The flow is calculated so that there is always enough to control a fire taking into account the size and construction of the building and the goods stored in it, or its use. Accurate flow data provides the chance to make energy saving measures by fine tuning the systems. Corrosion and obstructions can cause wet fire mains and pumped water pipelines to fail due to blockages.