Chapter 3

Description

General Information

The RUSKA Gas Lubricated Piston Pressure Gauge, model 2470 is a pneumatic pressure standard designed for the accurate generation and measurement of gas pressures to 3000 psig. This measurement is accomplished in the basic manner of using the fundamental pressure equation PRESSURE = FORCE/AREA (see Chapter 2, General Piston Pressure Gauge Considerations, for more information). The gauge is used as the precision measuring device in the RUSKA Gas Lubricated Piston Pressure Gauge System.

It may be seen from the above general equation that when a known force produced by a known mass is applied to a piston of a known area, a pressure will be produced that may be calculated (see Appendix A for detailed information). The RUSKA gauge is arranged for the application of carefully determined masses on a piston of known area.

A key feature of the gauge is its ability to accurately reproduce its performance at the lower pressures. The low viscosity of the gas provides excellent lubrication for the close-fitting piston/cylinder assembly. Relative motion between the piston and cylinder is necessary and is obtained by hand rotation of the masses and table which will then distribute the gas molecules throughout the annulus of the assembly. It is the relative absence of friction between piston and cylinder walls that characterizes the performance for which the gauge is so highly respected.

The nominal range of pressure (interval) over which the gauge is capable of operating is the span from 1.4 kPa (0.2 psig) to 20.6 MPa (3000 psig). This interval is covered by three interchangeable piston/cylinder assemblies having sufficient overlap for establishing continuity of measurement and for making detailed investigations of subintervals within the total range (span).

Some of the most important industrial uses of the gas lubricated piston pressure gauge is that of a standard for calibrating transducers, Bourdon-tube type gauges, manometers, and other dead weight gauges. Frequently, the gauge is used in combination with the pressure null transducer (RUSKA model 2413 or similar) for cross float calibrations between gaseous and hydraulic media.

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Fluke 2470 specifications Description, General Information
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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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