Calibration » Questions and Answers » What is the recommended calibration interval?

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What is the recommended calibration interval?

In order to continuously perform correct measurements, utilized measuring and test equipment must be monitored and calibrated on a regular basis. The corresponding time period is known as the calibration interval. Users of measuring and test equipment frequently ask how often calibration of this equipment is required.
There is no single correct answer to this question, because calibration always represents an instantaneous snapshot of actual conditions which is dependent upon a variety of factors including the following:

  • Measured quantity and allowable tolerance range
  • Level of stress to which the equipment is subjected
  • Stability of past calibrations
  • Required measuring accuracy
  • Quality assurance requirements

In the final analysis, this means that the period of time between any two calibrations must be determined and monitored by the user himself. We recommend a calibration interval of 1 to 3 years. In order to assist our customers in making this often costly decision, we offer free consultation services provided by our own employees. As a rule, we specify a period of 1 year in our factory calibration certificates. Deviations from this rule should be noted by the customer in the purchase order, as well as in the delivery note.