General Piston Pressure Gauge Considerations

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Calculations

Measurement of pressure with the piston pressure gauge is subject to uncertainties resulting from effects other than those of elastic distortion. But, it was appropriate that the subject of elastic distortion be discussed first, since this characteristic is largely responsible for the various designs that have been developed.

Measurement processes proposed for high accuracy are disturbed by limitations in the performance of the equipment, by small changes in the environment, and by operational procedures. The disturbances can be reduced to a degree by exercising control of the apparatus. Some of the disturbances are difficult to control; it is easier to observe their magnitudes and apply corrections for their effects.

The factors that affect a pressure measurement process when conducted with a piston pressure gauge are described below. It is important that the operator is acquainted with these factors and become accustomed to recognizing their presence. The success of the measurement will depend upon the degree to which control has been maintained, or to the completeness by which corrections were applied for these factors.

•Elastic distortions of the piston and cylinder.

•Effects of gravity on the masses.

•Temperature of the piston and cylinder.

•Buoyant effect of the atmosphere upon the masses.

•Hydraulic and gaseous pressure gradients within the apparatus.

Calculations

For a consolidation of these various corrections, see Appendix A of this manual. Appendix A contains a Pressure Calculation Worksheet (both SI and English units) with instructions. The Pressure Calculation Worksheet will step the user through the necessary corrections as applied to calibrations with a piston pressure gauge.

Measurement of Pressure with the Piston Pressure Gauge

Pressure results from the application of a force onto an area. Numerically, it is the quotient of the force divided by the area onto which it is applied:

P = FA

Where:

PRepresents the pressure F Represents the force A Represents the area

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Fluke 2470 specifications Calculations, Measurement of Pressure with the Piston Pressure Gauge
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2470 specifications

The Fluke 2470 is a versatile and highly regarded data acquisition system designed for a wide range of applications in electrical testing and measurement. Known for its precision and reliability, the Fluke 2470 is particularly popular among professionals who require accurate data for analysis and reporting.

One of the standout features of the Fluke 2470 is its high-performance data acquisition capabilities. It supports multiple channel inputs, allowing users to monitor and log various electrical parameters simultaneously. This multi-channel functionality is essential for complex testing scenarios where multiple variables must be tracked in real time.

The Fluke 2470 utilizes advanced measurement technologies, including a high-resolution analog-to-digital converter that ensures superior measurement accuracy. This technology is crucial for applications that demand precise readings, such as research and development, quality assurance, and compliance testing.

Additionally, the device is equipped with a variety of input types, including voltage, current, and temperature, making it suitable for a wide array of testing applications. The flexibility in input compatibility allows users to customize their measurements according to specific project requirements.

Another significant characteristic of the Fluke 2470 is its user-friendly interface and software integration. The accompanying software enables users to configure measurements easily, set up logging intervals, and analyze data visually. This intuitive setup minimizes the learning curve for new users and enhances productivity.

Data storage is another critical feature of the Fluke 2470. It provides ample internal memory, allowing users to record extensive datasets over long periods without the need for continuous monitoring. The stored data can be easily exported for further analysis, making it ideal for long-term testing projects.

Moreover, the Fluke 2470 excels in terms of portability and ruggedness. Its compact design is built to withstand demanding environments, ensuring that it can deliver accurate data in the field just as reliably as in the lab.

In conclusion, the Fluke 2470 combines high-performance data acquisition, multi-channel capabilities, advanced measurement technologies, and user-friendly features, making it a top choice for professionals in a variety of fields. Its robust design ensures that it meets the demands of rigorous testing while providing accurate and reliable data, crucial for informed decision-making.
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