Overview of Sensor Calibration

Sensor calibration is a critical process performed during routine maintenance to ensure measurement accuracy and compensate for sensor drift over time. Calibration involves adjusting the transformation equation that converts raw sensor output into final values expressed in engineering units.

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Key Considerations

Measurement Accuracy

• Sensor accuracy is influenced by its sensitivity, with a typical margin of error of ±2%.

Sensor Drift

• All sensors experience drift over time due to environmental factors, wear, and aging.

• Calibration is essential to correct this drift and maintain reliable measurements.

Calibration Frequency

• The recommended frequency depends on the sensor type and application.

• Most sensors require calibration annually, but certain applications may necessitate more frequent adjustments.

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Calibration Process

Schneider Electric offers a streamlined approach to sensor calibration, allowing users to:

• Modify the transformation equation to align raw sensor values with the expected output in engineering units.

• Address inaccuracies caused by sensor drift without requiring complex recalibration procedures.