The accreditation certifies the expertise, independence and performance of our calibration laboratory. MMF has stood for quality in vibration measurement technology for more than 60 years. It is important to us that the quality of our calibration service is verified by third parties. Our customers can trust that we work according to scientifically recognized and objective methods and achieve comparable and reproducible results. We now offer the option of accredited calibration for our products from a single source. Products from other manufacturers can also be calibrated. For current and detailed information on the specific scope of the accreditation, i.e. on the accredited measured variables, possible measuring ranges and measurement uncertainties, please refer to the certificate appendix D-K-21664-01-00, which is available for download.

MMF accreditation certificate with annex

MMF – List of all procedures within the flexible scope of accreditation

MMF – Conformity statements and decision rules

Due to the membership of the German Accreditation Body (DAkkS) in the International Laboratory Accreditation Cooperation (ILAC), our accreditation is internationally recognized.

Metra offers factory calibrations for vibration transducers, vibration measuring instruments, and complete measurement chains consisting of a transducer and a signal conditioner. These services are available for both Metra products and products from other manufacturers. In the case of a factory calibration, the responsibility for performing the calibration lies with the laboratory carrying out the work. However, no accredited calibration certificate is issued for this service. Consequently, the calibration is not covered by the EA MLA (European co-operation for Accreditation Multilateral Agreement) and is not traceable. For vibration measuring instruments and measurement chains, a calibration certificate is issued as part of the factory calibration. In addition to the measured values, the certificate includes the reference standards used. For vibration transducers (sensors), a Calibration Data Sheet is issued instead, containing the determined calibration data.

The picture shows a view of our calibration laboratory. On the left is a long stroke low frequency vibration table, Next to it is an air bearing medium and high frequency vibration exciter, in the middle the vibration control system and on the right hand side of the medium frequency vibration exciter for heavy objects. The frequency range of our calibration equipment is from 0.2 Hz to 20 kHz.

Overview of our calibration services for vibration sensors

Overview of our calibration services for vibration meters

Overview of our calibration services for vibration calibrators

Overview of our calibration services for measuring amplifiers

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