Cleaning: Ensuring that the equipment is free from dust, dirt, or other contaminants that could impair its operation.
Lubrication: Proper lubrication of mechanical parts to prevent friction and damage.
Component Replacement: Replacing parts that have worn out or are malfunctioning to restore optimal performance.

Fine-tuning: Adjusting settings or components to ensure the equipment meets the manufacturer’s specifications or operational requirements.
Alignment: Adjusting internal mechanisms for precision, such as ensuring a sensor or moving part is in the correct position.

Purpose: To ensure that the equipment’s output or readings match the known standards (e.g., a thermometer’s reading matches the temperature of boiling water).
Process: Comparing the equipment’s readings with a reference standard (calibration standard) and adjusting it if necessary to minimize the error.
Frequency: Calibration may be required at regular intervals depending on the industry or equipment type (e.g., annually, quarterly, or after a specific usage period).
Environmental Conditions: Calibration can depend on environmental factors such as temperature, pressure, humidity, and the nature of the substance being measured (e.g., electrical current, force, or temperature).