Ultrasonic flow meter scale installation steps

Abstract: ultrasonic flowmeter scale installation steps information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Ultrasonic flowmeter is competitive in the world today means of flow measurement, the measurement accuracy is higher than the line 1. 0%. Due to the diversity of industrial field, especially pipeline environment, therefore, how to according to the specific environment ultrasonic flowmeter, installation and debugging. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a ultrasonic flowmeter scale installation steps article details. Ultrasonic flowmeter is competitive in the world today means of flow measurement, the measurement accuracy is higher than the line 1. 0%. Due to the diversity of industrial field, especially pipeline environment, therefore, how to according to the specific environment of installation and debugging ultrasonic flowmeter, became an important subject in the field of ultrasonic flowmeter measurement, golden lake dahua automation engineer is user installation details of the ultrasonic flowmeter is introduced in detail, thus the user in the use of ultrasonic flow timing, can ensure the accuracy of ultrasonic flowmeter, reliability and stability, and greatly reduce maintenance work and even free maintenance in the future. A ultrasonic flowmeter, detailed location before installation should understand the situation, including: 1, installation of host sensors for how much; 2, pipe material, wall thickness and pipe diameter; 3, fixed number of year of the pipe has been used; 4, containing impurities, bubble fluid type, and whether the full tube; 5, fluid temperature; Whether there is interference sources (6, installation site Such as frequency, magnetic field, etc. ) ； 7, the host placed in the four seasons temperature; Eight, the use of supply voltage is stable; 9, whether you need remote signals and types; According to the site condition of the above provide manufacturers for site condition, if necessary can also be a special models. Second, the installation location selection ultrasonic flowmeter installation section impact on the accuracy of the test, the selected section should avoid interference and eddy current of these two to a greater influence on the accuracy of measurement, generally choose the section shall meet the following conditions: 1, avoid the water pump, power station, frequency, which has a strong magnetic field and vibration interference to install the machine; 2, choosing pipe should be uniform, easy to ultrasonic transmission section; 3, want to have enough long straight pipe, the installation point of straight pipe upstream must be greater than 10 d ( Note: D = diameter) And downstream is greater than 5 d; 4, installation point upstream from the water pump should be 30 d distance; 5, fluid should be full of pipeline; Around 6, ultrasonic flowmeter should have enough space to facilitate field personnel operation, underground pipes need to do the test well. Three, determine the probe installation ultrasonic flowmeter there are generally two kinds of sensor installation, namely the Z method and V method. However, when the diameter D, the 200 mm and the situation is one of the following conditions, Z method may be adopted to install: 1, when the high fluid turbidity measurement, couldn't get a signal measured with V method or the signal is very weak; 2, when the pipe wall with lining; 3, when the pipe scale and use fixed number of year is too long and the lining problem; For pipeline condition better, even if D is slightly greater than 200 mm, in order to improve the accuracy of measurement, installed V method may be adopted. Four, obtained from installation, determine the parameters for the probe position 1, the pipeline input instrument, choose pipe installation, it is concluded that installation distance; 2, in a horizontal pipe, generally should choose the central pipe, avoid the top and bottom ( Top may contain bubbles, there may be at the bottom of the precipitation) ； 3, V installation: make sure of a point, according to the installation distance in a horizontal position measure another point. Installation: Z method to determine a point, according to the installation distance in a horizontal position measure another point, and then measure the point on the other side of the symmetric point in pipe. After five, pipe surface treatment to determine the probe position, at two installation & plusmn; 100 mm range, use tools, such as the Angle grinder grinding, file and sand paper burnish of pipeline to light smooth without corrosion pit. Requirements: uniform luster, no uneven, feel is smooth and round. Need to pay special attention to, grind the demanding and the original pipe has the same radian, avoid by all means will be installed into a plane, using alcohol or gasoline wipe the range, such as to facilitate probe bonding. Six, ultrasonic flowmeter probe and instrument correct connection seven, fine-tuning probe position after the finish line to probe internal use silica gel is filled, place half an hour, and then the probe with silica gel and fixture fixed to grind the good line ( Pay attention to the direction of probe, pins to outside) , then to observe the signal intensity and the transmission time of ultrasonic flowmeter, if discovery is not good, is fine-tuned probe position, until the ultrasonic flowmeter signal to achieve within a prescribed scope: 1, the signal strength: generally should be greater than 6. 5, a few can decide according to the specific site conditions. 2, transfer time than: in 100 & plusmn; The range of 3, this value must be stable. Eight, fixed probe ultrasonic flowmeter signal adjust later, with the fixture will probe fixed good, be careful not to make the steel wire rope, so as not to pull the ultrasonic flowmeter probe, the probe shift, with silica gel to seal around the probe in contact with the pipe. This glue solidification takes about a day, must pay attention to probe the waterproof before did not work. （ Signal lines outside the shielding wire must be reliable grounding) Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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