Factory Calibration: Highly accurate measuring devices such as Collimator, Standard Weights Class 1, Provey Rings (NABL & Non NABL), digital Vernier Calliper etc. should be calibrated regularly.
It is recommended that equipment receive a factory calibration at least once a year but this is dependent on the type and amount of usage of the Total Station.
Regular/scheduled calibration can make a significant contribution to increasing overall product quality. This will also eliminate the need for non-essential rework and minimize waste.
As a part of numerous standards and regulations (ISO 9000 series of standards, ISO TS 16949, QS9000, etc.) a quality assurance system with integrated measuring device management is required, which needs a scheduled calibration interval for measuring equipment. Quality measuring tests always need to be performed utilizing sound test equipment per the context of product liability laws.