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Help CenterNon-Contact Clamp-On Ultrasonic Flow Meter for Liquids/Gases, 4-20mA/RS485 Output, Battery-Powered Option Available
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Ultrasonic Flowmeter Series
The ultrasonic flowmeter is a device that measures the flow of liquid in a pipe by using the principle of velocity difference. It can be divided into external clamp type, portable type and pipeline type. It is often used in combination with digital signal processing technology, multi - pulse technology and error correction technology to adapt to the environment and enhance reliability.
Application
At present, the product series includes ultrasonic water meters, ultrasonic flowmeters and ultrasonic heat meters. Among them, water meters, flowmeters and heat meters can be selected with single - channel and dual - channel. Now it has been widely used in automation control, chemical industry, electric power, petroleum, metallurgy and other fields.
Technical Performance
Item |
Performance and Parameters |
Principle |
Using the principle of ultrasonic timing difference, 4 - wire 18F27J54 single - chip microcomputer |
Accuracy |
Flow: ± 1% (when the electrical signal is better than 2%), repeatability: 0.2% |
Display |
Optional 2 * 10 character type or 16 * 240 dot matrix type liquid crystal display, 96 * 192 dot matrix type liquid crystal display |
Output Signal |
4 - 20mA, accuracy 0.1%, resolution 0.1%Pulse output: square wave, pulse equivalent and quantity can be set, internal and external OCT outputFrequency output: 1 - 9999Hz optional, OCT outputAlarm output: dual OCT output, optional 20 kinds of signals |
Host Signal Input |
Can input 3.3V - 20mA electrical signal, accuracy ± 0.1% (can collect temperature, pressure, liquid level and other signals)Can be equipped with RS485 interface: MODBUS standard communicationCan be equipped with HART interface 1: can communicate with HART protocol software |
Host Interface |
RS485 interface, can connect PC and flow calculation software for parameter setting, support MODBUS, METER - BUS protocolSelf - diagnosis: self - check interface, can display 12 items, 10 groups of historical data or heat data |
Other Functions of Host |
Automatically memorize whether the working state of the flowmeter in the past 32 days is normalAutomatically memorize the power failure time and flow rate for 32 times, and can perform manual or automatic compensation to reduce user flow or heat lossProgrammable (remote) control: There are 10 kinds of output signals, including the use of external input signals or MODBUS commands to perform quantitative control |
Special Cable |
Customized cable: generally reduced by 50 meters, the specific cooperation distance can be extended by 5000 meters, not recommended; using RS485 communication, the transmission distance can reach above the water meter |
Pipeline Situation |
Pipe material: steel, stainless steel, cast iron, water pipe, copper, PVC, aluminum, glass, etc. pipes of all qualities are allowed, and lining pipes are allowedPipe inner diameter: 15 - 6000mmStraight pipe section: The sensor installation point is best satisfied: upstream 10D, downstream 5D, and the distance from the outlet 50D (D is the pipe diameter) |
Measuring Medium |
Water, sewage, industrial wastewater, acid - base liquid, alcohol, various oils and other uniform media that can conduct ultrasonic waves |
Measuring Range |
Temperature: low temperature head: - 30 - 80℃, high temperature head: - 30 - 160℃Pressure: 10000mm air column full range |
Working Environment |
Flow rate: 0 - 30m/sFlow direction: positive and negative flow measurement, and can calculate the net flow accumulationAmbient temperature: - 25 - 70℃Weight sensor: - 40℃ - 160℃ temperature transmitter; specified according to customer needsHost: RS485Flow sensor: can work underwater, water depth ≤ 5m |
Fixed Mode |
Fixed type: flow sensor; split type: flow sensor |
Power Supply |
Local: 24VDC: 8 - 36VDC; 8 - 36VDC; 85 - 264VAC; 3.6V lithium batteryModule: 10 - 30VDC; 24VDCExternal: RS485 |
Power |
Less than 1.5W |
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