Advantages and installation instructions of external clamp ultrasonic flowmeter

The fixed external clamp ultrasonic flowmeter has the characteristics of accuracy, stability, and easy operation in the market. It is commonly used for measuring the flow rate of large pipelines, and is easy to use. Simply clamp the sensor on the pipeline in the prescribed way to measure without breaking the pipeline, and the measurement accuracy is relatively accurate. adoptIP68The protective sensor probe has a longer service life,5-6Stable operation without replacement within the year. The external clamp type ultrasonic flowmeter requires high installation personnel, and the installation level directly affects the measurement accuracy. In the future, there will be a lot of maintenance work, and after long-term operation, the coupling agent will fail or the sensor position will change, which will affect the measurement and require regular maintenance.
1） Before installing an ultrasonic flowmeter, it is necessary to understand the site conditions, including:
1． What is the distance between the sensor installation location and the host;
2． Pipeline material, wall thickness, and diameter;
3． Pipeline lifespan;
4． Fluid type, presence of impurities, bubbles, and whether the tube is full;
5． Fluid temperature;(Inserted sensor pipeline pressure)
6． Is there any interference source at the installation site (such as frequency converter, high-voltage cable field, etc.);
7． Temperature at the location where the host is placed throughout the four seasons;
8． Is the voltage of the power supply used stable;
9． Do you need remote transmission signals and their types;
Based on the on-site situation provided above, the manufacturer can configure according to the on-site situation and, if necessary, can also customize the model.
（2） Select installation location
The selection of installation pipe sections has a significant impact on testing accuracy. The selected pipe sections should avoid interference and eddy currents, which have a significant impact on measurement accuracy. Generally, the selection of pipe sections should meet the following conditions:
1、 Avoid installing machines in areas with strong magnetic fields and vibration interference, such as water pumps, high-power radios, and frequency converters;
2、 The selection of pipes should be uniform, dense, and easy to transmit ultrasonic waves;
3、 There must be a sufficiently long straight pipe section, and the upstream straight pipe section of the installation point must be greater than10D(Note:D=Diameter), downstream should be greater than5D；
4、 The upstream distance from the installation point to the water pump should be30DDistance;
5、 The fluid should fill the pipeline;
6、 There should be sufficient space around the pipeline for on-site personnel to operatemake, do, create, compose, write, etc.