Clamp on Ultrasonic Flow Meter

Clamp on Ultrasonic Flow Meter is a wall-mounted ultrasonic flow meter using TGA time difference technology. TGA is an algorithm for measuring process time with higher speed and accuracy.

Features of Clamp on Ultrasonic Flow Meter

Compared with other conventional flowmeters, the LRF-3000S ultrasonic flowmeter has the following characteristics in addition to the flexibility of on-site installation, high response speed and better measurement capability under low flow rates:

1. Use an independent high-performance FPGA chip with 400,000 gate arrays. The measurement rate can be greater than 300 times per second. Compared with other brands, it has a great improvement in the resistance to air bubbles in the measurement pipe diameter. It can withstand continuous bubbles for up to 5 seconds.
2. Increased signal strength. It has greater penetrating power to various scales, rust in the pipe and the inner lining of the pipe.
3. 4-line LED display. Easy to operate.
4. The sensor adopts our unique manufacturing process and matching technology. The zero point range can be controlled within 0.03m/s. The static time difference between each pair of sensors is less than 2 nanoseconds. This effectively guarantees the authenticity of the measured time difference.

Specifications of Clamp on Ultrasonic Flow Meter

Performance specification
Flow range	0 ~ ±12m /s (0~ 40ft /s)
Accuracy	1.0% of measured value
Repeatability	0.20%
Pipe Size	DN25~DN1200mm
Function Specification
Outputs	Analog output: 4~20mA, max load 750Ω.
	Pulse output: 0~10KHz
Power Supply	10 ~ 36VDC or 10~24VAC
Keypad	16 keys(4X4) touch keys
Display	240*128, 4-line LCD display
Temperature	Transmitter: -14℉~140℉(-20℃~60℃)
	Transducer:-40℉~176℉(-40℃~80℃,TT01  ,Standard)
	Transducer:-40℉~266℉(-40℃~130℃,TT03  ,High Temp)
Physical specification
Transmitter	PC+ABS, IP65
Transducer	Encapsulated design,IP68
	Double-shielded transducer cable
	Standard/maximum cable length:30ft/1000ft(9m/300m)
Packaging	20*22*23.5cm, 3.0kg

External clamp sensor:

1. The signal cable and sensor are manufactured in one piece without wiring;
2. Hidden tube tie design, more stable and beautiful after installation;
3. A pair of sensors can achieve DN25-DN1200mm measurement to meet the use of a larger range of pipe diameters;
4. Protection grade IP68, can work underwater without water ingress.

Clamp on Ultrasonic Flow Meter Working Principle

Clamp on Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

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Clamp on water flow meter

Clamp on water flow meter means to measure the water flow rate by clamping the ultrasonic flowmeter sensor outside the pipe. The sensor is non-invasive. Of course, according to the actual requirements of the measurement, it can be fixed or portable.

So, why are we willing to use Clamp on ultrasonic flowmeter to measure the flow rate of water?

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

Advantages of Clamp on water flow meter for water measurement:

1. External clamp installation, without damaging the pipeline. easy and convenient.
2. It is convenient to measure ultra-small and ultra-large pipes. As small as Φ9.5. As large as DN6000.
3. Electromagnetic flowmeter is used to measure the volume flow of conductive liquid with conductivity greater than 5μS/cm. Then other water flow with conductivity less than 5μS/cm can be measured with ultrasonic clamp on water flow meter. For example, ultrapure water.
4. For pure water, drinking water, etc., it is necessary to keep clean and hygienic. If contact flow meters such as turbine flow meters and orifice flow meters are used, the material must be strictly required. At least 316SS material is required. Then the cost of the contact flowmeter will be very high.

Read more about: Non-invasive Ultrasonic Tank Level Sensor Working Principle

Portable clamp-on ultrasonic flow meter

Sino-Inst, Manufacuturer for Clamp on Ultrasonic Flow Meter. It can measure a single sound-conducting liquid medium of DN 25—1200mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Clamp on Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.