Vortex flow meter

Only the following information could be found by searching on Baidu; take it as general information. It is recommended to move this post to the instrumentation section: Vortex flowmeter 1. Equipped with built-in pressure, temperature, and flow sensors, it offers high safety levels, a compact design, and an attractive appearance. 　　 2. Display temperature, pressure, instantaneous flow rate, and cumulative flow rate on-site. 　　 3. By using a new type of signal processing amplifier along with advanced filtering techniques, interference signals caused by pressure fluctuations and pipeline vibrations are effectively eliminated, **improving the meter’s resistance to interference and ensuring excellent stability even at low flow rates. 　　 4. Features of unique time display and real-time data storage ensure that internal data is not lost under any circumstances and can be preserved permanently. 　　5. The overall power consumption is extremely low, allowing it to operate for extended periods on its internal battery; it is thus an ideal local display instrument that does not require an external power source. 　　 6. The anti-theft function is reliable, featuring password protection to prevent parameter changes. 　　 7. The table header can be rotated 180 degrees at will, making installation convenient. 　　 Operating environmental conditions: Ambient temperature: -30°C to +55°C; Relative humidity: 5% to 95%; Atmospheric pressure: 86KPa to 106KPa. Performance specifications: High precision, generally reaching ±1%R, ±0.5%R; the high-precision version can achieve ±0.2%R ； 　　 ·It features good repeatability, with short-term repeatability as high as 0.05%–0.2%. Thanks to this excellent repeatability, very high precision can be achieved through regular or online calibration, which makes it the preferred flow meter for use in trade settlements ； 　　 ·Outputs a pulse frequency signal, suitable for total quantity measurement and connection to computers; features no zero drift and strong interference resistance ； 　　 ·High-frequency signals (3–4 kHz) can be obtained, with excellent signal resolution ； 　　 ·It has a wide range; the ratio can reach 1:20 for medium and large diameters, and 1:10 for small diameters ； 　　 ·Compact and lightweight, easy to install and maintain, with high flow capacity ； 　　 ·Suitable for high-pressure measurements; no holes need to be made in the instrument body, making it easy to create high-pressure versions of this instrument ； 　　 ·There are many types of specialized sensors, which can be designed to meet specific user requirements as various specialized types, such as those for low temperatures, bidirectional use, underground applications, or use in sand mixing processes ； 　　 ·It can be made in an insert type, suitable for large-diameter measurements; it has low pressure loss, is inexpensive, can be removed without interrupting flow, and is easy to install and maintain.

Most flow meters measure instantaneous flow, but some also provide flow accumulation, which allows the average flow to be calculated.

Flowmeters generally measure instantaneous velocity, unless they have an electronic component that processes the data and allows for the display of average velocity. . . .

What was said upstairs is correct; it’s the instantaneous flow rate value