Flow meters are instruments designed to quantify the rate or volume of a movingįluid-either liquid or gas-in an open or closed conduit. Starting with the application will help to select the technology based on accuracy, cost, durability and reliability, rather than trying to make the technology fit the application you have.Flow Meter Resources Flow Meter Application AdvisorĪccurate flow measurement is a critical component of many commercial and industrial processes. Many of the technologies work well on many applications.
The way to select the right flow meter is to think about the application as a guide, not the technology. There is no one size fits all flow meter. Applications for Flow SensorsĮach type of flow sensor has its own specific applications and installation constraints. Magnetic-Inductive Sensors: This type of sensor detects three process categories, volumetric flow quantity, consumed quantity and medium temperature. Widely used for gases and liquids flow measurement because of its low cost, simplicity, low-pressure drop and linear output. Variable Area Flow Sensors also known as Rotaflow meters: identified by their tapered tube and float designs.
Disadvantages are clogging and maintenance is required to cope with the axial wear otherwise the paddle needs replacing. This simple structure is compact and can perform a large-capacity measurement. The sensors are connected to a pipe with liquid passing through and turning a paddle wheel, the primary device calculates the speed as the paddle is turned. Paddlewheel Flow Sensors or Turbine: One of the most common types of flow sensor. The transmitter produces an output signal from the raw transducer signal. The transducer senses the fluid that passes through the primary device. Flow sensors are available as time measuring units (these measure flow rates over a set time period) or they can be totalising flow meters that continually measure the medium passed through.įlow sensors consist of a primary medium connection device, transducer and transmitter. They can also be known as flow gauges or liquid meters. Flow sensors or flow indicators are flow meter devices used to measure the amount of liquid, gas or vapour that passes through them.
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