09,22,2026 37 views
1、 Product features: 1 3 9 1 5 1 9 1 8 3 6
The series triangular weir ultrasonic open channel flowmeter can be used to continuously monitor the flow rate of sewage in open channels and accumulate the flow rate. It can also be used as a non-contact level gauge, suitable for flow measurement under water conservancy, hydropower, environmental protection, and other industrial and agricultural open channel conditions.
2、 Product Overview:
Triangle weir and rectangular weir open channel flow meters, as well as triangular weir ultrasonic open channel flow meters, use ultrasonic waves to measure the water level height in the open channel weir groove in a non-contact manner, and then automatically calculate the corresponding flow value by a microprocessor. When measuring flow rate, the LCD displays instantaneous flow rate and cumulative flow rate; When measuring the liquid level, it displays the liquid level and upper and lower line alarm indicators. number
The memory is EEPROM, and the data inside the instrument will not be lost during power outages. The instrument is also equipped with explosion-proof probes specially designed for the petroleum and chemical industries to meet the measurement requirements of sewage flow in explosion-proof areas of these industries, with an explosion-proof grade of EX ia (d) ia Ⅱ BT4. It is particularly suitable for flow measurement of oily wastewater.
We can provide users with Bacher slots, triangular weirs, rectangular weirs, display heads, or free design of weir plate sizes for open channel flow meters. In order to ensure the measurement accuracy of the instrument and reduce the difficulty of user debugging, please choose the weir groove (weir plate) produced by our company
3、 Technical parameters:
Measurement range: 0.1 liters per second to 10 cubic meters per second
Accumulated traffic: 99999999 cubic meters
Ranging range: 0-3m
Distance measurement accuracy: 0.3%
Flow accuracy: 1% (depending on the type of weir plate)
Blind zone: 0.3m to 0.5m
Distance measurement resolution: 1mm
Pressure: Normal pressure
Instrument display: Equipped with LCD to display instantaneous flow and cumulative flow
Analog output: 4-20mA
Digital output: RS485, Modbus protocol or custom protocol
Power supply voltage: DC24V/AC220V, built-in lightning protection device
Environmental temperature: -20 ℃ to+60 ℃
Protection level: IP65
4、 Principles of instrument installation:
1) The distance from the transducer emission surface to the low liquid level should be less than the range of the selected instrument;
2) The distance from the transducer emission surface to the high liquid level should be greater than the blind spot of the selected instrument;
3) The emission surface of the transducer should be parallel to the liquid surface;
4) The instrument is installed in the center of the canal or on a still water well.
5) The instrument needs to be installed upstream of the weir plate or weir groove.
5、 Installation precautions:
1) The instrument casing should be securely connected to the ground;
2) Wire and cable protection pipes should be protected to prevent excessive water accumulation;
3) Although the instrument itself is equipped with lightning protection devices, additional lightning protection devices are installed at the inlet and outlet of the instrument when used in areas with frequent lightning strikes;
4) Triangle weir, rectangular weir open channel flowmeter, and triangular weir ultrasonic open channel flowmeter are used in particularly hot and cold places, where the ambient temperature may exceed the working requirements of the instrument. Therefore, high and low temperature devices should be added around the liquid level instrument.
