Accurate pressure measurement is essential for the safe and efficient operation of many systems, including hydraulics, pneumatics, HVAC, medical devices, and industrial equipment. However, several common pitfalls can lead to errors, equipment damage, and safety risks. Understanding these pitfalls helps ensure reliable readings and optimal performance.

One frequent pitfall 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 reference can result in inaccurate readings and unsafe conditions.

Another common issue is incorrect unit conversion. Pressure is expressed in units such as bar, psi, MPa, atm, or kgf/cm². Misapplying conversion factors or rounding numbers without care can create significant errors. Always verify units before performing calculations or configuring instruments.

Choosing the wrong measurement range or accuracy class is also a common problem. Using a gauge outside its intended range can damage the instrument and produce unreliable readings. Selecting the proper accuracy class ensures precise and consistent measurements.

Neglecting calibration is another pitfall. Over time, sensors and gauges can drift, affecting accuracy. Routine calibration is essential to maintain reliable readings and prevent hidden errors.

Improper installation or handling of instruments can further compromise accuracy. Vibrations, extreme temperatures, and incorrect mounting positions can all affect readings and system performance.

In summary, the key pitfalls in pressure measurement include confusing pressure types, incorrect unit conversions, wrong instrument range or accuracy, lack of calibration, and improper installation. Awareness and careful practices help prevent these errors, ensuring safe, accurate, and efficient operation in all pressure-related applications.