Ultrasonic flow meters' ​function and attention

Ultrasonic pipe flow meter function

The positive and negative values of the flow can be measured and recorded on the data, and the flowmeter will store the positive and negative cumulants to ensure the accuracy of the net cumulants of the measured flow.

In terms of communication, a variety of communication protocols can be selected, such as 4-20mA, pulse, relay, RS485, Modbus, M-bus, Hart, batch controller, etc. Data can be transmitted to PC or cloud through protocols to realize the Internet of Things. Different communication protocols are applicable to different environmental conditions.

On the maintenance and patrol inspection, the inspection pipeline data can be exported. The data includes measurement time, flow rate, flow rate, positive and negative net accumulation. At least one second interval can be set for export, which is suitable for pipeline patrol inspection.

In terms of installation selection, external clamp type, pipe segment type and plug-in type can be selected. Different working conditions require different installation methods, which can maintain the overall consistency.

The non-conductive fluid and corrosive fluid can be measured on the measured fluid. The external clip ultrasonic flowmeter will not damage the pipeline and will not lead to pipeline leakage later.

Ultrasonic pipe flow meter matters needing attention

Proper selection of ultrasonic flowmeter can ensure better use of ultrasonic flowmeter. The type of ultrasonic flowmeter selected shall be determined according to the physical and chemical properties of the fluid medium to be measured, so that the diameter, flow range, lining materials, electrode materials and output current of the ultrasonic flowmeter can adapt to the properties of the fluid to be measured and the requirements of flow measurement.

1. Precise function inspection

The accuracy grade and function of the instrument shall be selected according to the measurement requirements and use occasions to achieve economic results. For example, for the occasion of trade settlement, product handover and energy measurement, the accuracy level should be higher, such as 1.0, 0.5 or higher; For the occasion of process control, different accuracy levels shall be selected according to the control requirements; In some cases, where the process flow is only measured without precise control and measurement, the lower accuracy level can be selected, such as Level 1.5, Level 2.5, or even Level 4.0. In this case, the low-cost plug-in ultrasonic flowmeter can be selected.

2. Measurable medium

When measuring medium flow rate, instrument range and caliber to measure general medium, the full flow of ultrasonic flowmeter can be selected within the range of 0.5-12m/s for measuring medium flow rate, with a wide range. The specification (diameter) of the selected instrument is not necessarily the same as that of the process pipe, which should be determined within the flow rate range depending on whether the flow rate range is measured. That is, when the flow rate of the pipe is too low to meet the requirements of the flow instrument or the measurement accuracy cannot be guaranteed at this flow rate, the instrument diameter needs to be reduced to improve the flow rate in the pipe and obtain satisfactory measurement results.