What does the calibration of a test instrument involve?

The calibration of a test instrument primarily involves testing and retesting using circuit or process parameters to ensure that the instrument provides accurate and reliable measurements. Calibration is a critical process where the instrument's output is compared against a known standard or reference to determine its accuracy. This process typically includes adjustments and checks across a range of operational conditions or parameters to confirm that the instrument behaves as expected.

In addition to confirming accuracy, proper calibration helps identify any drift in measurements that may occur over time, ensuring the instrument works correctly within its specified limits. It can involve various measurements across different points to create a calibration curve or response that reflects the instrument’s performance.

While adjusting the measurement scale can be part of the calibration process, it is more specific and typically comes into play after testing reveals the need for adjustments. Installing new software or replacing outdated components may enhance functionality but are not directly related to the calibration process itself.