⎝⎛星力捕鱼⎞⎠

⎝⎛星力捕鱼⎞⎠ page Company Profile ⎝⎛星力捕鱼⎞⎠ Product center Quality system marketing network After sales service Recruitment contact us
Flow meter series
Temperature instrument series
Pressure instrument series
Calibration instrument series
Level instrument series
Digital display instrument series
Transmitter instrument series
Wire and cable series
Bridge instrument cabinet series
Pipe fitting valve series

Address: Xiongyi, Jinhe Road, Jinhu County, Jiangsu Province
Lunan
Phone: 0517-86900901
0517-86900921
0517-86900920
Fax: 0517-86900902
Postcode: 211600
http://zzyfwh.com
Email: chinadongxiang@163.com
Industry Information
The main source of measurement error of V-cone flowmeter
2011-5-30 10:17:25

The main sources of measurement errors of V-cone flowmeters are caused by improper installation, untimely maintenance, or changes in process system operating parameters. The technicians of Dongxiang Instrument will summarize the incorrect operation of the V-cone flowmeter .

1. The first is irregular installation

There are several main reasons for the irregular installation of V-cone flowmeters in the field: the lack of straight pipe sections before and after the process pipeline causes fluid instability and affects the measurement accuracy; there are problems with the installation direction. Of course, this problem will not happen Unless it is caused by an error in the field installation; when measuring steam, the condensing device does not cool down completely and the installation height varies

2, followed by the misoperation of the secondary instrument

When the V-cone flowmeter is used in the field, a differential pressure transmitter must be equipped for normal use. Therefore, the performance and installation of the differential pressure transmitter directly affect the overall accuracy of the V-cone flowmeter. The V-cone flowmeter still has successful operation experience in measuring mixed fluids, but it is necessary to pay attention to the corrosion protection of the differential pressure transmitter and periodically open the drain valve.

3, the final impulse tube is blocked or leaking

When measuring viscous and crystalline media, the pressure guiding tube and the shut-off valve are often blocked due to heat tracing and other reasons, which causes the differential pressure value input to the differential pressure transmitter to change, resulting in measurement errors. Elimination methods are to conduct inspections on time, clean the sewage or clean with a hand pressure pump.

When measuring high-pressure or corrosive media, pressure leaks or joints often leak, causing pressure loss and differential pressure deviation. The solution is to conduct inspections on time and plug the loopholes.

Through the above description, our on-site maintenance technicians can easily find the fault of the V-cone flowmeter and reduce the economic loss on site.