What is the accuracy percentage when a gauge reads 5 psi and the measured accuracy is ±0.6 psi?

To determine the accuracy percentage based on the given gauge reading and its accuracy tolerance, you first need to understand how accuracy is calculated in this context.

The gauge reads 5 psi, and the specified accuracy is ±0.6 psi. This means that while the gauge is indicating 5 psi, the actual pressure could range from 4.4 psi (5 - 0.6) to 5.6 psi (5 + 0.6). The accuracy expresses how close the measured value is to the true value relative to the full scale of the measurement.

To find the accuracy percentage, you can use the formula:

[

\text{Accuracy Percentage} = \left( \frac{\text{Accuracy Specification}}{\text{Gauge Reading}} \right) \times 100

]

Substituting the values:

[

\text{Accuracy Percentage} = \left( \frac{0.6}{5} \right) \times 100 = 12%

]

This calculation reveals that the gauge's accuracy represents 12% of the 5 psi reading, which indicates a relatively significant variability in readings, especially in the context of low-pressure measurements. This percentage is a crucial factor in assessing the