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technical article
Several common faults and analysis of vortex flowmeter
2011-10-14 15:30:19


  
In the thunderstorm season, the vortex flowmeter is damaged by the lightning strike is the most common kind of fault. A lightning strike in the transmission line will induce a strong surge current breakdown and generate instantaneous high-voltage spikes or burn out electronic components in the converter. Such lightning strikes are mainly introduced through signal lines and power lines.
 
仪表呈现出一系列的毛病也是多见的。 Due to long-term operation and aging over time, some of the electronic components of the vortex flowmeter will gradually lose their efficiency, which eventually causes the meter to show a series of problems.

   流体内脏物在丈量管道里残留,因为经过了长期的工作,会在发作体上附着,从而改动了发作体和丈量管道之间的几何参数。 Vortex flowmeter fluid internals remain in the measuring pipe, because after a long period of work, they will adhere to the body, thereby changing the geometric parameters between the body and the measuring pipe. Due to the increasing measurement error of the instrument, the flexibility between the detection components is greatly reduced, thereby reducing the amplitude value of the signal, and the instrument components also fail.

Due to long-term erosion by moisture, the vortex flowmeter in a corrosive gas environment will also reduce the insulation resistance of components, which corrodes some local locations of electronic components, including terminal blocks, ground terminals, etc. , Increase the contact resistance of the plug-in, which weakens the transmission signal. In the case of failures caused by long-term operation of this type of vortex flowmeter in a humid environment, it is necessary to change the circuit board and enhance the instrument maintenance, so as to continuously promote the good operation of the instrument.