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20 things you should consider when calibrating pressure gauges

Pressure gauge s are very common instruments in the process industry. As with any measurement device, pressure gauges need to be calibrated at regular intervals to assure they are accurate. There are many things to consider when calibrating pressure gauges. This article lists 20 things you should consider when calibrating pressure gauges. 1. Accuracy classes  :Pressure gauges are available in many different accuracy classes. Accuracy classes are specified in ASME B40.100 (accuracy classes from 0.1 to 5 % range) as well as in EN 837 (accuracy classes from 0.1 to 4 % range) standards. The accuracy class specification most often being “% of range” means that if the accuracy class is 1% and if the scale range is zero to 100 psi, the accuracy is ± 1 psi. 2. Pressure media  :When calibrating pressure gauges, the most common pressure media are gas or liquid. Gas is most often regular air, but in some applications, it can also be different gases, such as nitrogen. Most commonly, the...
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Applications for Hydraulic Gauges

The mobile hydraulics industry has a long history of using  hydraulic gauges ​ as instrumentation on construction machinery, agriculture and forestry machinery, and material handling equipment. This gauge is used because it can withstand the extreme vibration and shock from the machinery. The stationary hydraulics industry uses hydraulic gauges for instrumentation on machinery like presses, stamping machines, rolling machines, and forming machines because of the extreme pressure spikes and surges from the hydraulic systems. A new and growing application for hydraulic gauges is for portable equipment. Hydraulic gauges are being used on portable hydraulic power packs that generate high hydraulic pressure for hydraulic tools, which include torque wrenches, jacks and shears. Hydraulic gauges are also being used in portable compressors for construction tools and equipment, as well as being used in portable pumps for reservoir drainage, irrigation systems and storm water handlin...
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The Suitable Gauge for High Vibration Conditions

Vibration is one of the most common causes of pressure gauge failure in production facilities, posing a host of threats. Just for starters, simply reading a gauge mounted to a vibrating piece of equipment can be difficult. Vibration also can move a gauge’s pointer mechanism “off zero” — making readings inaccurate. If you don’t address vibration risks in your production lines, your gauges will wear out prematurely. That, in turn, will result in an endless, expensive cycle of replacements with gauges that are apt to be just as ill-suited to high-vibration settings. In comparison to huge pieces of equipment, a gauge may seem to be a small concern. Yet, gauges are among the small details that, if not given proper attention, can leave you without information needed to address problems before they turn into larger ones. Gauges come in many different types, designs and levels of quality, so the most important consideration in selecting a gauge is matching it to its application. In fact, ins...
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