Excellent Precision thanks to Calibration provided by the Hoffmann Group Calibration Service

When it comes to calibrating your devices, take advantage of the comprehensive consulting expertise offered by the Hoffmann Group – the exclusive partner of Perschmann Calibration and other calibration service providers. Our specialists calibrate several thousand measuring tools on a daily basis at our sites in Braunschweig and Nuremberg, including vernier callipers, torque wrenches, digital protractors and measuring microscopes from leading manufacturers like GARANT, HOLEX, Mitutoyo, Mahr, Seitz, Testo, Tesa and Zeiss.

Advantages of calibration services from the Hoffmann Group:

  • Reliable information about your measuring tools
  • Audit-proof QM documentation
  • Minimal downtime costs
  • Minimal administration work

Calibration Procedure in our Laboratory


Save valuable time by using our pick-up and delivery service. By using our rental boxes, you can rest assured that your measuring tools will be transported quickly and reliably. Once your measuring tools arrive at our calibration laboratory, they are first prepared for the calibration and brought to the right temperature. During the calibration, the measuring tools are checked using specialised processes and, upon request, calibrated in accordance with VDI and DAkkS. The outcomes and potential deviations from the test standards are evaluated and documented in a calibration certificate. After the calibration, we send the item back to you safely, together with the calibration certificate.

Here you will find the right calibration service for you.

At the Hoffmann Group, new items can be ordered already calibrated. In this case, the new item will be delivered with a calibration certificate and, if you wish, registration for trendic® 3.5 measuring tool management. In addition to our new-item calibration and recalibration services in our calibration laboratory, we also provide an on-site calibration service for measuring devices, such as height gauges, measuring microscopes and torque wrenches.

What are the differences between factory Calibration and DAKKS Calibration?


In Germany’s largest calibration laboratory, it is not just DAkkS calibrations that are possible, but also factory calibrations.

In contrast to DAkkS calibration, factory calibration can only be traced back to the factory standard, and not to the national standard. As a result, on an international level, factory calibration is not recognised by every user. However, Perschmann Calibration sets the same standards with factory calibration as with DAkkS calibration. Following factory calibration at Perschmann Calibration, you will receive a calibration certificate which corresponds to a certificate in accordance with DIN EN ISO/IEC 17025.

Our accreditation by German accreditation body DAkkS allows you to have the greatest confidence in our services. We ensure our processes are reviewed on a regular basis and implement our measurement-related calibration processes properly, which means you can rely on your measuring results. The calibration guarantees traceability to the national standard. Sources of error such as hysteresis, repeatability and measurement deviation, as well as the expanded uncertainty of measurement and traceability are checked and documented. In terms of uncertainty of measurement, DAkkS calibration is, therefore, often more precise, more comprehensive and internationally recognised.

Advantages of DAkkS calibration:

  • Very high reliability
  • International validity
  • Subject to state regulation

Manage measuring tools electronically


trendic® 3.5 – the new measuring tool management and calibration software – provides you with innovative possibilities. Through the use of a specially developed unique ID, measuring tools become “talking measuring tools” within the context of Industry 4.0. By scanning the code on a tool, trendic® 3.5 provides you with all the information about that particular measuring tool, which helps you to manage and observe relevant dates for the calibration work. trendic® 3.5 considerably reduces time and costs when it comes to measuring tool management.


How often should measuring tools be calibrated?

It is usually up to the Quality Management department in a company to determine how often a measuring tool should be calibrated. As well as using cycles or frequency of use to determine the time of recalibration, it is advisable to have measuring tools calibrated after incidents, e.g. if they have been dropped.

When is DAkkS calibration necessary?

DAkkS calibration is necessary when the result of the calibration must be traceable to the national standard and be recognised on an international level. DAkkS calibration is also recognised in court. Furthermore, since September 2018, IATF 16949 prescribes DAkkS calibration for manufacturing activities in the automotive sector.



The Hoffmann Group provides you with everything from a single source: from choosing the right measuring tool through to advice on calibration. Our metrology specialists will be happy to provide you with advice at any time.

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Additional Information


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