The area of application for pressure gauges with Bourdon tubes is liquid and gaseous media. For measuring tasks in aggressive, not highly viscous and non-crystallising media, even in aggressive environments, the stainless steel variants are suitable....
Absolute pressure is zero-referenced against a perfect vacuum, so it is equal to gauge pressure plus atmospheric pressure. Gauge pressure is zero-referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure....
The Bourdon-tube gauge, invented about 1850, is still one of the most widely used instruments for measuring the pressure of liquids and gases of all kinds, including steam, water, and air up to pressures of 100,000 pounds per square inch (70,000 newt...
"Stainless Steel Case" is used to refer to the whole watch being stainless steel. Plated base metal usually has a more nickel-like, more white or silver finish than steel. Also the links in a base metal band will often have a mold line, a raised line...
When it came to pressure gauge case production, the instrument industry primarily manufactured cases made from a brass substrate, which would then be plated with either chrome or gold. But numerous other case materials were tested, including aluminum...
The dials of pressure gauges come in various sizes. They range from “1.5 to 16” diameters. Generally, the ease with which the gauge could be read, space limitations and accuracy requirements determines the dial size. Larger dial size pressure gauges ...
Pressure gauge accuracy ranges from grade 4A to D according to ASME 40.1. For a mechanical pressure gauge, accuracy is defined either as a percentage of the full-scale range or a percent of the span. As the accuracy increases, so does the price of th...
The scale range must be chosen so that the measured process pressure is between 1/3 and 2/3 of the scale range. In this area the gauge reaches its highest accuracy. As a rule of thumb you can say that the measurement range should be two times larger ...
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