Multichannel ultrasonic flow meter
1 to 8 multichannel ultrasonic flow meter consists of a converter, sensors and connecting cables. The converter is divided into wall-mounted type and plate-mounted type, and can be equipped with three types of sensors: pipeline type, plug-in type, and clamp-on type.
The multichannel ultrasonic flow meter is an instrument that measures the liquid flow in a circular tube based on the principle of "velocity difference". This instrument uses digital analysis and error correction technology to make the instrument more suitable for the harsh environment of the industrial site and has accurate and reliable measurement.
Advantage
● High temperature resistant, corrosion resistant, and long life sensor
The plug-in high temperature sensor adopts a ceramic acoustic wedge mode, and the external-clip high temperature sensor adopts a crimping mode. The sensor can work at 160℃ (medium temperature) for a long time and can exceed 200℃ (medium temperature) in a short time.
● Safer and more accurate plug-in sensors
The plug-in sensor adopts a high-pressure resistant auxiliary screw and an anti-rotation structure to ensure the safety and accuracy of installation, debugging and measurement.
● Fast measurement speed
The response speed in high-speed mode is ≤200ms, and accurate measurement is also performed in pulsed flow.
● Stable and accurate measurement
The instrument converter has a commutation self-calibration function, which measures and calibrates in real time. Changing the sensor will not affect the measurement accuracy. Specially designed time difference detection circuit ensures stability and accuracy of measurement.
● Complete traffic management functions
Measurement data over a decade can be queried for analysis of operation conditions.
● Multi-channel measurement
You can choose from 1 to 8 measurement channels, and the sensors can be installed in two ways: parallel and cross.
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Insertion type |
Pipe section type |
External clip type |
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Pipe diameter range |
DN（80～4000）mm |
DN（20～4000）mm |
DN（20～4000）mm |
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Accuracy |
±1.0% |
±1.0% |
±1.5%，±1.0%（Explosion proof type） |
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Flow velocity range |
±（ 0.1～32 ） m/s |
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Response speed |
High speed mode: ≤ 200ms; Medium speed mode: ≤ 500ms; Low speed mode: ≤ 1s |
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Measuring liquids |
Homogeneous fluids such as water, river water, seawater, petroleum, milk, beverages, chemical liquids, etc |
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Pipeline material |
Metals (such as carbon steel, cast iron, stainless steel, aluminum, etc.); Non metallic materials (such as PVC, organic glass, etc.) |
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Pipe lining material |
Fiberglass reinforced plastic, mortar, rubber, polyethylene, polypropylene, etc |
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Input/ output signals |
Current input |
Two 4-20mA inputs; Can achieve measurement of heat (cold) and input of temperature, pressure, liquid level and other signals |
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Current output |
Optoelectronic isolation 4-20mA (0-20mA) analog output: programmable correlation of instantaneous flow rate, instantaneous heat consumption, inlet temperature, outlet temperature, maximum 800 Ω load,+HART (optional), 4-20mA accuracy level 0.1. Second photoelectric isolation 4-20mA (0-20mA) (optional). |
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Pulse output （ Optional selection） |
Optoelectronic isolation cumulative pulse output (optional): OD output, maximum withstand voltage 350V, maximum current 120mA, pulse width adjustable from 0.1-5999.9ms (resolution 0.1ms). The minimum pulse interval is adjustable from 0.1-5999.9ms (resolution of 0.1ms). A single pulse corresponds to an accumulated amount of 0.001-59999 (the unit of accumulated amount follows the instrument setting), which can be programmed to be in a normally open or normally closed state. |
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Communicatio n output |
Optoelectronic isolation RS-485 interface: supports MProtocol protocol, Modbus RTU protocol, Print protocol, and Other A protocol. |
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Alarm output （ Optional selection） |
Two upper limit, lower limit, and window alarm relays (optional): DC30V/5A orAC250V/5A; Programmable normally open or normally closed state; Programmable flow upper and lower limit alarm, window alarm; Programmable heat upper and lower limit alarm, window alarm; Programmable temperature upper and lower limit alarm, window alarm and other alarm modes. |
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Keyboard |
16 tactile buttons, 4 tactile buttons |
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Display |
2 * 16 English display |
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Measurement function |
Instantaneous flow rate (display positive and negative, maximum 8 digits, including decimal point) Instantaneous flow rate (display positive and negative, maximum 8 digits, including decimal point) Positive cumulative traffic (display up to 9 digits, including decimal points) Negative cumulative flow (display up to 9 digits, including decimal point) Accumulated running time Instantaneous heat consumption (display positive and negative, maximum 7 digits, including decimal point) Accumulated heat consumption (displayed up to 9 digits, including decimal points) Inlet temperature (display positive and negative, maximum 7 digits, including decimal point) Export temperature (display positive and negative, maximum 7 digits, including decimal point) |
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Data storage |
Accumulated measurement data that can be set for the first 720 hours, the first 365 days, the first 120 months, and the first 10 years of storage; Storage of power on/off time (up to 10 records, each containing the time of power on and off), menu modification records (up to 16 records), fault records (up to 16 records), highest temperature records (when temperature measurement function is enabled), etc |
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Ambient temperature |
Converter and sensor ambient temperature: -30~40 ℃ (please specify for special environments) Insertion sensor medium temperature: -40~80 ℃ (normal temperature type) -40~160 ℃ (high temperature type) External clamp sensor medium temperature: -40~80 ℃ (normal temperature type) -40~200 ℃ |
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