QTLD Pipe Ultrasonic Flowmeter
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Transit time ultrasonic flow meter 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.
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Features
• 0.5% of linearity
• 0.2% of repeatability
• 4 flow totalizers
• Patent balanced lower-voltage multi-pulse ultrasonic igniting
• built-in date totalizers
• built-in data-logger
• Work properly near transverters
• 0.5 second totalizing period
• 100 Pico-second resolution of time measurement