The clamp-on ultrasonic flowmeter can only measure liquids, such as tap water, sewage, sea water, pure water, reclaimed water and other relatively clean liquids. If the liquid contains a large amount of agglomerated dirt or a large number of bubbles, it will affect the ultrasonic transmission and reception. It is not advisable to choose an external clip-on intelligent ultrasonic flowmeter. Most oils and gases are not suitable for selection.The main steps for the installation of the external clamp ultrasonic flowmeter are: selecting the installation point, inputting the parameters, obtaining the sensor installation distance, applying the couplant, and binding the sensor. Most users can understand how to do the above steps after reading the manual, but after operating according to the method, the traffic still cannot be displayed. The main reasons are:1. The installation distance automatically calculated by the flowmeter is understood too mechanically, and the distance is set to mm to install. In fact, this distance is only a reference distance. Due to the influence of the pipeline environment, such as wall thickness deviation and uneven inner wall, it may cause acoustic signals. Of deviation. Therefore, a very practical way for us during the actual installation is to fix the upstream sensor first, and then press the M90 key on the host to check the signal strength and quality. Generally speaking, both UP and DN should be above 80, and the Q value is lower than 50. The flowmeter cannot measure normally.2. In user installation problems, there are often users who check the M90 menu when UP and DN are both 0. The main reason for this situation is that the coupling agent is not applied or the clamp is not tightened. Another reason is that there is no water in the pipeline during installation.3. The reason why the Q value is 0 is mostly improper distance. At this time, open the M90 menu, move the downstream sensor slowly, and fix it when the Q value reaches a maximum value.
Post time: 21-09-21