Differential pressure orifice plate flowmeter measurement is complex and easy to error, with the flow totaliser can simplify the operation, improve the accuracy and reliability, the flow totaliser has the advantages of compensation and correction, multi-function, etc., to meet the needs of industrial flow measurement.
Differential pressure orifice plate flowmeter and flow totaliser in the industrial flow measurement each plays an important role, and the reason why it is not recommended to enter the differential pressure orifice plate flowmeter formula directly into the system for calculation, but choose to use with the flow totaliser, the main reasons are as follows:
Characteristics and limitations of differential pressure orifice plate flowmeter
Measuring principle: Differential pressure orifice plate flowmeter is based on the principle of fluid flow throttling, through the measurement of the differential pressure before and after the throttling device to deduce the flow rate. The measurement process involves a number of parameters, such as the outflow coefficient, the expansion coefficient, the cross-sectional area of the opening of the throttling device, the differential pressure and the density of the measured fluid.
Complexity: Because the measurement principle of differential pressure orifice plate flowmeter involves multiple variables and complex calculation formula, directly in the system to enter the formula for the calculation is not only cumbersome, but also prone to error.
Accuracy and stability: Although the differential pressure orifice plate flowmeter can accurately measure the flow rate in theory, but in practice, due to changes in fluid properties, wear and tear of the throttling device as well as changes in the measurement environment and other factors, its measurement accuracy and stability may be affected.
Advantages of flow totaliser
Integration and Intelligent: The flow totaliser is a kind of intelligent instrument that integrates a variety of measurement, display and control functions. It can be used in conjunction with various flow sensors or transmitters, temperature sensors or transmitters and pressure transmitters to achieve comprehensive monitoring and control of fluid parameters.
Compensation and Correction: The flow totaliser has a full range of automatic temperature and pressure compensation algorithms, which can correct the measurement results in real time according to the actual temperature and pressure of the fluid, thus improving the accuracy and reliability of the measurement.
Multifunctionality: The flow totaliser can not only display the instantaneous flow and cumulative flow, but also carry out various functions such as alarm control, variable output, data acquisition and communication, etc., to meet the various needs of industrial flow measurement.
Advantages of using together
Simplify the operation: through the differential pressure orifice plate flowmeter and the flow totaliser with the use, you can simplify the measurement process, avoid directly in the system to enter complex formulas for calculation.
Improved accuracy: The compensation and calibration functions of the flow totaliser can further improve the measurement accuracy of the differential pressure orifice flowmeter, making it more suitable for a variety of complex industrial environments.
Enhance the reliability: the intelligent and multi-functionality of the flow totaliser can enhance the reliability and stability of the whole measurement system, and reduce the measurement error caused by human error or equipment failure.
In summary, it is not recommended to directly enter the differential pressure orifice plate flowmeter formula for calculation in the system, but choose to use with the flow totaliser, which can simplify the operation, improve the accuracy and reliability of the measurement, so as to better meet the needs of industrial flow measurement.
Hangzhou Economic Development Area，Hangzhou 310018，China
