Calibration laboratory2024-07-11T16:49:23+02:00

DAkkS-accredited calibration of torque sensors

Our calibration laboratory for your torque sensors:

  • Professional calibration of torque sensors for reliable measurement values
  • Measurement results traceable at all times
  • Own calibration equipment for different torque values
  • DAkkS-accredited calibration in accordance with DIN 51309 and VDI/VDE 2646:2019 from 0.2 N·m to 20,000 N·m
  • Factory calibration to 100 kN·m
  • Calibration of special applications
  • Short turnaround times

As a manufacturer and user of torque measurement technology, we offer you the service of DAkkS-accredited calibration and factory calibration of torque sensors. In our own in-house DAkkS-accredited calibration laboratory, we calibrate your sensors to excellent accuracy of the torque.

With our calibration equipment, we cover the range of 0.2 N·m to 100 kN·m. DAkkS-accredited calibrations according to DIN 51309 and VDI/VDE 2646:2019 are possible from 0.2 N·m to 20,000 N·m. We offer factory calibrations from 20 kN·m to 100 kN·m. Likewise, we are in a position to calibrate many special applications. We produce calibration adapters in-house, so that you can count on short turnaround times of your calibration order.

Fast, precise, traceable: calibration at ATESTEO

High precision

  • DAkkS-accredited calibration laboratory in accordance with ISO 17025:2018
  • Excellent calibration to the best possible accuracy
  • High precision and valid measurement results

Traceable at all times

  • Direct connection to the German Metrology Institute of the Federal Republic of Germany (PTB, Physikalisch-Technische Bundesanstalt)
  • Regular professional and system inspections by independent DAkkS inspectors
  • Certified in accordance with ISO 9001:2015, ISO 14001:2015, ISO/IEC 27001:2013

Rapid and custom service

  • DAkkS-accredited calibrations in accordance with DIN 51309 and VDI/VDE 2646:2019 from 0.2 N·m to 20,000 N·m
  • Factory calibrations of torque sensors up to 100 kN·m
  • Short turnaround time for your calibration order

Request calibration in the DAkkS-accredited calibration laboratory now

Find out now from our expert Yavuz Durdagi about your possibilities of DAkkS-accredited calibration, factory calibration, or calibration of special applications at the ATESTEO calibration laboratory!

Your torque sensors at our calibration facilities

ATESTEO has applied many years of experience and all its in-house resources to the development and implementation of unique calibration facilities with associated software. This allows all types of torque sensors to be calibrated, independently of manufacturer. The ATESTEO calibration laboratory is accredited in accordance with DIN EN ISO/IEC 17025:2018, fulfilling all its requirements. The DAkkS-accredited calibration laboratory is equipped with state-of-the-art technology and its staff are experienced and competent, allowing a short turnaround time for each and every calibration.

Advantages of torque sensor calibration at ATESTEO:

  • DAkkS-accredited and certified calibration laboratory
  • Traceability of the results
  • Great flexibility and high precision
  • Rapid execution of your calibration order
  • Secure outward and return transport of your torque sensor in a custom transport case
  • Lasting and valid measurement results
  • Custom service
  • High efficiency and reliability of the calibration through process optimisation
  • ATESTEO database for measurement equipment

Download our brochure

You can find all further information on our accredited and certified calibration laboratory at ATESTEO in our current brochure.

Your torque sensor in our calibration laboratory

At ATESTEO, we have manufactured torque measuring technology for the automotive industry for over thirty years. In the field of drivetrain testing, we apply these measurement technology instruments ourselves. So that our demanding automotive customers, just like we ourselves, can rely on the extremely precise calibration during tests and measurements, there is the ATESTEO calibration laboratory.

Professional calibration of a torque sensor is decisive for the quality of its measurement result, especially for repetitive measuring routines. You will also need the calibrations of your torque sensors for ISO 9001 certification. In the ATESTEO calibration laboratory DAkkS-accredited calibrations in accordance with DIN 51309:2022 and VDI/VDE 2646:2019 are possible. Although DAkkS-accredited calibrations are more complex than factory calibrations, our many years of experience, our modern equipment, and our specially developed calibration facilities guarantee you fast project turnaround times.

Please note: factory calibrations are not accredited calibrations and therefore do not serve as proof of metrological traceability.

The ATESTEO calibration laboratory is DAkkS-accredited according to DIN EN ISO/IEC 17025:2018.

DAkkS-accredited calibrations of your torque sensors in accordance with DIN 51309 and VDI/VDE 2646:2019

If you wish to know everything about your torque sensor and have high demands on as well as high requirements for the sensor and measurement result, ATESTEO offers you DAkkS-accredited calibration of your torque sensor in accordance with DIN 51309 and VDI/VDE 2646:2019. Every calibration in the ATESTEO calibration laboratory is precise, fast, and traceable. During DAkkS-accredited calibration, your torque sensor is calibrated according to DIN 51309 or VDI/VDE 2646:2019 from 0.2 N·m to 20,000 N·m. For this purpose, it is rotated in three mounting positions, each by 120°. This gives you all the values you need for the functioning and certification of your torque sensor.

Scope of DAkkS-accredited calibration:

Measurand/Calibration object Measuring range/Measurement span Measurement conditions/Procedure Expanded measurement uncertainty Remarks
Torque/Torque transducer 0.2 N·m to 20,000 N·m DIN 51309:2005
VDI/VDE 2646:2019
0.02% According to the reference principle

On a DAkkS-accredited calibration certificate, ATESTEO documents the traceability to national standards for the representation of units in accordance with the International System of Units. This makes your calibration internationally recognised as well.

Traceable results of DAkkS-accredited calibration in accordance with DIN 51309 on the calibration certificate – the measurement values on the calibration certificate:

  • Exact measurement values for each step of calibration
  • Reversal error (hysteresis)
  • Repeatability and reproducibility
  • Creep behaviour
  • Return to zero point
  • Remanence value
  • Interpolation error (potential deviations of the measured value from the cubic and linear approximations)
  • Values of the measurement uncertainty at every calibration step
  • Classification in accordance with DIN 51309


You can find out about our DAkkS accreditation or download our sample calibration certificate here.

Your calibration in our calibration laboratory

We start with your requirements and wishes. What does your torque sensor need to do? Which key values do you need? For which requirements and certificates do you wish to have a calibration? In a joint discussion, we clarify the initial situation and objectives. Then, a decision is made for a DAkkS-accredited calibration or a factory calibration of your torque sensor. After you have approved the quotation and placed an order, we calibrate your torque measurement equipment according to the specified criteria and return it to you as quickly as possible along with the calibration certificate.

1. Inquiry for calibration

Together with you, we determine the criteria for the calibration of your torque sensor:

  • Measurement range
  • Calibration standard
  • Direction of torque (clockwise, counterclockwise/anticlockwise)
  • Manufacturer and/or type

2. Quotation for calibration

You receive a comprehensive quotation taking into account the defined criteria (including price and delivery date).

3. Order

After you have ordered, you receive a confirmation of your order from ATESTEO. Then you send your torque sensor to ATESTEO for the calibration.

4. Calibration

We perform the calibration of your torque sensor in our DAkkS-accredited calibration laboratory with short turnaround times.

FAQ – frequently asked questions about the calibration of torque sensors

What is a DAkkS-accredited calibration laboratory?2024-07-11T11:23:43+02:00

The accreditation of the calibration laboratory provides you with additional security on the professional competence of the laboratory. The accreditation is assessed, confirmed, and monitored by the DAkkS (German Accreditation Body). As an accredited calibration laboratory, we are able to perform DAkkS-accredited calibrations of your torque sensors to the highest standard.

Unlike certification, which can be issued by different societies, accreditation is issued by a single authorized body and the number of people (e.g. press accreditation for a specific event) or companies is limited.

DAkkS is the national accreditation authority of the Federal Republic of Germany (the predecessor of DAkkS was DKD). It is a central building block of the quality infrastructure and issues accreditations in the field of conformity assessment. DAkkS acts in the legal mandate and in the interest of the state, the economy and the protection of society and the environment.  (

The subject of the work of calibration laboratories is the determination of display errors of instruments and measuring systems as well as the values of measurement samples. The aim is to ensure accurate and reliable measurement results. The accreditation of testing and calibration laboratories is carried out according to DIN EN ISO/IEC 17025. (

A DAkkS-accredited calibration laboratory is therefore able to trace the physical quantities back to the national standard. A specific accreditation is issued for each quantity and each calibration specification.

A DAkkS-accredited calibration laboratory must be independent and accessible to everyone.

Why do measurement devices have to be calibrated?2021-12-01T15:09:25+01:00

According to ISO 9001 or DIN ISO 17025, measurement and test equipment must be regularly calibrated. The resulting calibration certificates issued by the calibration laboratory in accordance with DIN 51309 or VDI/VDE 2646:2019 are valid for 26 months. After this period, the equipment must be recalibrated if the risk of incorrect measurements is to be reduced and costs for recalls or rework are to be avoided.

Every sensor and the associated measuring chain are subject to a variety of influences that can affect the measuring accuracy, such as aging, wear, operating errors, overloading, external or internal damage. Therefore, depending on the measuring principle, accuracy requirements, and risk analysis, measuring instruments must be calibrated at regular intervals or after an event such as an accident or misuse. We will be pleased to advise you when a calibration is useful or necessary.

Who is allowed to calibrate my torque sensors and torque transducers?2024-07-11T11:26:05+02:00

It all depends on the requirements. Only a DAkkS-accredited calibration guarantees the traceability of the results. Factory calibrations do not ensure traceability to national standards. In addition, quality management standards such as DIN ISO 17025 do not accept factory calibrations. So if you need to meet certain requirements, you need a DAkkS-accredited calibration from a DAkkS-accredited calibration laboratory. Only their calibration certificates ensure traceable measured values.

Why do I reach higher accuracy from a DAkkS-accredited calibration?2024-07-11T11:24:44+02:00

Calibration involves comparing the measured value of a torque sensor or torque transducer with a standard value. The measurement accuracy is defined through the documentation of the deviation. This requires precise and reproducible calibrations in a calibration laboratory with high competence where calibration equipment, automation technology, and software along with highly qualified and experienced torque specialists come from one source.

The main difference is that the DAkkS-accredited calibration according to ISO 17025 fully guarantees the traceability of the test specimen to the national standard. This means that the deviation from the standard is documented for each individual stage in the test chain.

We will be happy to advise you on the question of whether a factory calibration, which we will also be happy to perform for you, is sufficient for your application or whether a calibration according to DIN 51309 or VDI/VDE 2646:2019 makes sense.

How often do I have to calibrate my device?2024-07-11T11:25:40+02:00

For torque sensors and torque transducers, calibration intervals are defined based on the user’s requirements, taking into account the following factors

  • Stability of the characteristic values of the test equipment based on past calibrations.
  • Requirements of the measuring accuracy.
  • Requirements of the quality measurement standards.
  • Operating conditions such as temperature, humidity, soil (higher values or higher fluctuations have a strong influence on stability).
  • Mechanical stress, high load changes, operating time, high speed (high and many load changes have a stronger influence).

Depending on the individual application and taking into account the factors mentioned above, shorter or longer intervals may be required. For a non-binding consultation on whether a factory or DAkkS-accredited calibration is suitable for you due to the conditions of use or the stress, our expert team of the calibration laboratory will be happy to assist you.

How long does calibration take?2024-07-11T11:25:04+02:00

The DAkkS-accredited calibration of a torque sensor usually takes a few days. After the administrative details are clarified, the following steps are carried out:

Step 1: Acclimatisation in the calibration laboratory to reduce the influence of humidity and temperature. Duration: at least 10 hours (preferably overnight)
Step 2: Calibration, check measured values for plausibility, release after successful calibration. Duration: a few days
Step 3: Return shipment to our customer

On request, we will be happy to advise you on suitable transport companies.
We can also provide you with transport cases tailored to your measuring shaft at a reasonable price.

Do you still have questions?

Were the FAQs not able to answer your question? If you have unique needs or would you like to get in touch with us, please do not hesitate to do so. We look forward to receiving your message!

Download overview on the calibration of torque sensors

Make your torque sensors more accurate and reliable and your measurement results more reliable. Take advantage of our DAkkS-accredited calibration laboratory to calibrate your torque sensors. Here you will find further information about our services.

Download a sample calibration certificate

Download a copy of our DAkkS certificate

Download our brochure on the ATESTEO calibration laboratory

Download our leaflet on calibration, torque, and measurement technology

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