laitekalibrointiin

Device calibration, known in Finnish as laitekalibrointi, is the systematic process of adjusting an instrument or piece of equipment so that its measurements meet specified accuracy requirements. The goal is to ensure that the device’s output corresponds as closely as possible to an accepted standard or reference. Calibration is a routine part of quality management in laboratories, manufacturing, and maintenance facilities, and is required by many industry standards and regulatory bodies.

A typical calibration procedure involves comparing the device’s readings to traceable reference values obtained from certified standards. The difference between the device’s measurements and the reference is logged as an error, and if necessary, calibration coefficients are applied or the device is adjusted physically. After adjustment, a verification measurement confirms that the device remains within the required tolerance. Documentation of each step—including date, operator, reference standard, and results—is essential for traceability and audits.

Calibration intervals depend on factors such as the device’s usage, environmental conditions, and criticality of the measurements. Sensors exposed to harsh conditions may need daily or weekly calibration, whereas stable automotive diagnostic tools may be calibrated monthly or annually. Many organizations use calibration management software to schedule, record, and alert personnel about upcoming calibrations, helping to prevent costly downtime.

Common instruments that undergo regular calibration include pressure gauges, temperature sensors, spectrophotometers, torque wrenches, and multimeters. While calibration is primarily an accuracy procedure, it also serves as a preventive maintenance tool: detecting drift, mechanical wear, or sensor degradation before it impacts product quality or safety. In regulated industries such as pharmaceuticals or aerospace, accurate calibration is required for compliance with Good Manufacturing Practice, ISO 9001, and other regulatory standards.