Pressure plays a critical role in many industrial applications, from hydraulics and pneumatics to HVAC and food processing. However, mistakes in measuring and managing pressure are common and can lead to equipment damage, operational inefficiencies, and safety hazards. Understanding these errors helps prevent costly problems.

One frequent mistake is confusing absolute pressure with gauge pressure. Absolute pressure is measured relative to a vacuum, while gauge pressure is measured relative to atmospheric pressure. Using the wrong type can result in inaccurate readings and unsafe conditions.

Incorrect unit conversions are another common issue. Pressure is measured in bar, psi, MPa, atm, or kgf/cm². Misapplying conversion factors or rounding numbers “by eye” can create serious errors in system settings and calculations.

Selecting the wrong instrument range or accuracy class is also a frequent problem. Using a gauge outside its intended range or with insufficient accuracy can give unreliable readings and risk damaging equipment.

Neglecting regular calibration can lead to hidden errors. Over time, sensors and gauges can drift, reducing measurement accuracy. Routine calibration is essential to maintain reliable readings and system performance.

Finally, improper installation or handling of instruments can compromise accuracy. Vibrations, extreme temperatures, and incorrect mounting positions can all affect readings and system operation.

In summary, common pressure mistakes in industry include confusing pressure types, incorrect unit conversions, wrong instrument range or accuracy, lack of calibration, and improper installation. Awareness and careful practices help ensure accurate measurements, safe operation, and efficient industrial performance.