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What is the performance of the flow meter

Date:2019-11-28 source:

Instrument and meter the national association for the approval of scientific and technological progress defines it as a panel indicating the total fluid mechanical output of the flow under test and/or at selected intervals.Simply put, a gauge used to accurately measure the hydrodynamic flow in a pipe or channel.

What is the performance of the flow meter

What is the performance of the flow meter

1. Accuracy:

The accuracy of the flow meter is expressed by the precise measurement error, which includes the base error and the additional error, which is the result of both.The accuracy described in the manufacturer's manual of the instrument panel is usually the base error, so the flowmeter is applied on the spot to take into account the size of the additional error, which is sometimes much higher than the base error and is a characteristic of the flow meter.

2. Repeatability:

Under the same precise measurement criteria, the consistency of individual results was measured accurately several times for the same exact measurement.Flow gauge repeatability and principle of www.okcis.cn/hyk-k230349.html and manufacturing and assembly quality related, such as turbo flowmeter repeatability than orifice meter high, and the same type pressure meter, manufacturing and assembly lines, cost-effective high repeatability, panel manufacturers of finished goods before the original factory to carry out the real flow check in addition to the clear dashboard index, from repetitive flowmeter is capable of detecting instrument panel manufacturing and assembly quality.

3. Category:

In the past, it has been called the measurement range ratio. The ratio of large flow to the minimum flow is generally expressed as the ratio between a certain number and 1. For example, if the large flow is 5000m3/h, the category number is 20:1.Category is a key characteristic of flowmeter, in the selection of flowmeter motor, it often plays a key role, but now we pay more attention to not only the category width, and set its low limit flow to low, but not to increase its flow limit.

4. Linearity:

The calibration curve is at the same level as the required parallel line. Linearity can be divided into independent linearity, end-based linearity and zero-based linearity.Linearity is a key index value for the total output metrology verification instrument panel with wide flow range monopulse output. Linearity difference reduces accuracy if a single instrument panel constant is used within the flow range.With the development trend of microcomputer technology, data signal compatible with technical adjustment dashboard software discrete system is selected to improve the dashboard accuracy and expand the scope of traffic.

5. Reliability:

The flowmeter characteristics are consistent with the operating capability of the flowmeter for the required time under the required operating criteria.

6. Work pressure damage:

In addition to the non-blocking flow test pieces, the vast majority of flow meter test pieces set static or subject activity test components in the safe passage of commodity circulation or change the flow direction, thus causing the flow with the change of the working pressure damage can not be repaired.

Porcelain city Shanghai instruments co., LTD., has more than 30 years of technology accumulation, has a number of national invention, has been reached in many ways even more than the world leading level, such as range than can do 1 0 and the latter, temperature more than 200 c, can bear pressure 1000 bar and so on, can say we are the real benchmarking enterprise of flow meter industry in China.


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