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Flow measurement of china portable ultrasonic flow meter For sale
Flow measurement of china portable ultrasonic flow meter For sale
Data: 2022-10-02 00:13

The flow measurement of the china portable ultrasonic flow meter For sale is simple and convenient. As long as you select a suitable installation point, input the pipe parameters at the installation point on the host, install the sensor on the pipe surface according to the installation distance of the sensor provided by the host, and connect it to the host with a special ultrasonic cable, you can complete the flow measurement.

 Selection of installation point for china portable ultrasonic flow meter For sale

The selection of installation point is the key to correct measurement. The following factors must be considered when selecting the installation point of china portable ultrasonic flow meter For sale: full pipe, steady flow, scaling, temperature and interference.

1. Full tube
In order to ensure the measurement accuracy and stability of china portable ultrasonic flow meter For sale, the fluid at the measuring point must fill the pipeline (otherwise the measured value will be too large or cannot be measured). Therefore, the following conditions shall be met during installation:

The two sensors should be installed in the horizontal direction of the pipe axis, within 45 °, to prevent the normal measurement of the sensor from being affected by the phenomenon of insufficient pipe at the upper part, bubbles or sediment at the lower part.

2. Steady current
The steady flowing fluid is helpful to the measurement stability, thus ensuring the measurement accuracy of china portable ultrasonic flow meter For sale. The fluid with chaotic flow state will make the measurement data unstable or unable to measure.

Meet the standard requirements for stable flow conditions of china portable ultrasonic flow meter For sale:

1) When the pipe is far away from the pump outlet and the valve is half opened, the straight pipe section requires 10D upstream and 5D downstream (D is the outer pipe diameter).

2) It is required to be 30D away from the pump outlet and the straight pipe section of half open valve.

3. Scaling
The scaling on the inner wall of the pipe will attenuate the transmission of ultrasonic signal and make the inner diameter of the pipe smaller. Therefore, the pipeline with scaling on the inner wall of the pipe will make china portable ultrasonic flow meter For sale unable to measure normally or affect the measurement accuracy. Therefore, it is necessary to avoid selecting the place where the inner wall of the pipe scales as the installation point. If the scaling installation point cannot be avoided, the following measures can be taken to eliminate or reduce the impact of scaling measurement on the inner wall of the pipeline.

1) Knock the pipe at the measuring point with a hammer until the signal strength of the measuring point increases significantly.

2) The Z method is selected for measurement, and the scaling is set as the lining to obtain better measurement accuracy.

3) Replace the pipe at the measuring point.

4. Temperature
Exceeding the operating temperature range of the sensor is easy to cause damage to the sensor or greatly shorten the life of the sensor. Therefore, the fluid temperature at the installation point must be within the installation and use range of the sensor, and the installation point with lower temperature shall be selected as far as possible. Therefore, the same pipeline shall be installed on the return water pipe as far as possible (if possible, it is better to measure the temperature at the installation point before measurement), rather than at the boiler water outlet and heat exchanger outlet.

5. Interference
The host, sensor and cable of china portable ultrasonic flow meter For sale are easy to be interfered by such interference sources as frequency converter, radio, TV station, microwave communication station, mobile phone base station and high-voltage line. Therefore, when selecting sensor and host mounting points, try to stay away from these interference sources.

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