ABS Shell Wall Mounted Handheld Ultrasonic Flowmeter

Ultrasonic Flow Meter

The clamp-on or pipe-segment ultrasonic flow meter is based on the principle of "speed difference method" to measure the flow of liquid in a round tube. It uses advanced multi-pulse technology, signal digital processing technology and error correction technology to make the flow meter more adaptable to the environment of the industrial site, and the measurement is more convenient, economical and accurate. The products have reached the advanced level at home and abroad, and can be widely used in petroleum, chemical, metallurgy, electric power, water supply and drainage fields.

Principle
According to the principle of signal detection, ultrasonic flowmeters can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method and frequency difference method), beam shift method, Doppler method, cross correlation method, and spatial filtering method And noise law, etc.

Ultrasonic flowmeters are the same as electromagnetic flowmeters. Because there are no obstructions in the flow channel of the instrument, they are non-obstructive flowmeters. They are a type of flowmeter suitable for solving difficult flow measurement problems, especially in large-diameter flow measurement It is one of the rapidly developing types of flow meters.

Features
Folding characteristics
◆Unique signal digital processing technology makes the measurement signal of the instrument more stable, strong anti-interference ability and more accurate measurement.

◆Without mechanical transmission parts, it is not easy to be damaged, maintenance-free and long life.

◆ More optimized circuit, high integration; low power consumption and high reliability.

◆Intelligent standard signal output, friendly man-machine interface, multiple secondary signal output for your choice.

◆Pipe-section type small pipe diameter measurement is economical and convenient, and the measurement accuracy is high.

Piezoelectric transducers are commonly used in ultrasonic flowmeters. It uses the piezoelectric effect of piezoelectric materials, and uses a suitable transmitting circuit to add electrical energy to the piezoelectric element of the transmitting transducer to generate ultrasonic vibration. Ultrasonic waves are injected into the fluid at a certain angle to propagate, and then are received by the receiving transducer, and converted into electrical energy by piezoelectric elements for detection. The transmitting transducer uses the inverse piezoelectric effect of the piezoelectric element, while the receiving transducer uses the piezoelectric effect.

The technical parameters of the external clamp type ultrasonic flowmeter AFTU-2W are as follows:

Installation method: wall-mounted

Velocity range: 0~5m/s

Accuracy: ±1% of measured value

Repeatability: 0.2%

Keyboard: 16 (4×4) touch keys

Display: 20×2 dot matrix character backlit LCD display

Power supply: 10~36VDC/1Amax

Shell material: PC/ABS plastic

Protection level: IP65

Ambient temperature: -10℃~+50℃

Output: frequency output 0-5kHz, OCT mode: 4-20mA output

Communication: RS-485 communication interface, support Modbus protocol

Technical Parameters

Wall-mounted ultrasonic flowmeter

Mode of transport