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Instrument Calibration ServicesFactory and ISO 17025 Calibration

Calibration is a fundamental step in the process of measurement. It ensures that the instrument used for testing accurately indicates the required measurement parameter and that the instrument is performing to its specification.

Instrument Calibration Services highlights

Factory Calibration

All Dewesoft measurement instruments are shipped with a traceable factory calibration certificate and validity of 1 year. Factory calibration follows the same calibration methods as ISO certification.

Worldwide Calibration Labs

Dewesoft offers it's own factory calibration labs in all big countries with fast response times so your units can be recalibrated in the shortest possible time.

ISO 17025 Calibration

On customer request, we perform traceable ISO 17025 certification in-house at Dewesoft accredited calibration laboratory.

Calibration Software and Hardware

The automated calibration procedure not only checks analog input/output ranges but also performs all amplifier and overall instrument functionality.

GPS and INS/IMU Calibration

Our navigational GPS and Inertial navigation systems can also be factory calibrated using the same calibration methods as our data acquisition systems.

Sensor Calibration

IEC and ANSI acoustic calibrations are offered for the sound and acoustic sensors as well as sound measurement devices. Factory and ISO calibration are possible for all our current sensors and current transducers as well as your existing current transducers.

Why Is Calibration Needed?

Calibration is a fundamental step in the process of measurement. It ensures that the instrument used for testing accurately indicates the required measurement parameter and that the instrument is performing to its specification.

Traceability is a fundamental principle in any type of calibration work. Measurement traceability describes how a calibration result - usually quoted on a certificate of calibration - can be traced back through a chain of calibrations to a calibration standard.

The standard ISO 10012-1 defines calibration as “operations which establish, under specified conditions, the relationship between values indicated by a measuring instrument or measuring system, or values represented by a material measure, or reference material, and the corresponding values of a quantity realized by a reference standard”.

According to the International Laboratory Accreditation Cooperation (ILAC), the purpose of calibration is:

  • To know the uncertainty that can be achieved with the measuring instrument.

  • To confirm whether or not there has been any alteration of the measuring instrument that could create doubt about the results.

  • To improve the estimation of the deviation between a reference value and the value obtained using a measurement instrument, as well as the uncertainty of this deviation, at the time the instrument is actually used.

Factory Calibration and Conformance Test

All Dewesoft data acquisition systems are calibrated and checked for conformance tests before they leave our headquarters to you. 

The ISO standardization process requires a periodic check of the measurement equipment. If your organization requires this you can either annually send back your Dewesoft instrument to the factory for inspection, or – if you own a larger number of measurement channels – build up a new or extend your existing calibration lab.

Dewesoft DS-CAL-BOX Calibration Device

DS-CAL-BOX is our standard device for automated calibration. The device does more than just calibration and checking of the analog input ranges. It performs a complete functionality check of your Dewesoft device and it's amplifiers and signal conditioners.

The DS-CALIBRATOR software standard routines contain the check and adjustment of analog ranges, filters, sensor excitations, counters, power supplies, bridge completions, shunts, analog output, sync, CAN bus.

If all checks pass for all channels, it will update the calibration data on the device and create a professional calibration report in PDF format. The calibration reports are always accessible online via your device serial number.

You can download an example factory calibration report here.

Factory Calibration Procedure

Dewesoft factory calibration is not just a calibration of input and output parameters (analog input and analog output) but is also a functional check of the complete instrument. The calibration procedure is completely automatic.

It is not ISO certified calibration, but it is done with the ISO certified equipment (certified every year) and with the same method as it is performed in the ISO institute.

We calibrate the following parameters:

  • Analog inputs: Different sample rates, ranges, DualCoreADC check. Calibration & test.

  • Analog outputs: Different sample rates, ranges, DualCoreADC check. Calibration & test.

  • Excitation voltage and current: Calibration & test.

  • Charge: Calibration & test.

  • Temperature: Calibration & test.

  • Resistance: Calibration & test.

  • CMR: Calibration & test.

  • SNR: Different sample rates, ranges, DualCoreADC check. Test.

  • Filter: Low pass, high pass. Test.

  • Bridge Mode: Different types, shunts. Test.

  • Counters: All 3 counters, 5V; 12V. Test.

  • TEDS Sensors: Test.

  • Motherboard test   

  • VCXO: PPS signal. Calibration & test.

  • SYNC: Test.

  • CAN: Data RX-TX, 5V, 12 V. Test.

Dewesoft Worldwide Calibration Labs

Dewesoft offers local factory calibration labs in the following countries:

  • Austria

  • Brazil

  • China

  • France

  • Germany

  • Hong Kong

  • India

  • Japan

  • Russia

  • United Kingdom

  • Singapore

  • Sweden

  • The United States of America

Recalibration for all Dewesoft devices can be done in any of the above countries locally. If your country is not on the list we will either recalibrate in our Slovenian headquarters calibration lab or in the closest country for the fastest lead time.

We offer our customers a very short processing time for the calibration of sent measuring equipment. 

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Accredited ISO Calibration

Accredited calibrations of measurement instruments are needed when formal third-party recognition of calibration is required. This recognition is for example required for instruments used as reference standards, or to meet various demands from different authorities.

An accredited calibration is traceable to national institutes such as NIST, NPL, or PTB. Calibration certificates are issued in compliance with the requirements of the ISO/IEC 17025 and are recognized by all the major international accreditation organizations. Accredited calibration certificates are considered legally accepted documentation.

For the final qualification of your product, or if you are working in the field of measurement service, it is important to have a certificate that the instrument has been calibrated by an accredited laboratory. We are an Accredited calibration laboratory by an accreditation body i.e. Slovenian Accreditation in Slovenia, which is a full Member ILAC MRA signatory.  Also, we are collaborating with partner laboratories locally and around the world, who can perform the internationally recognized ISO/IEC 17025 accredited calibration. The laboratories are audited periodically to ensure continued compliance.

  • ISO calibration is done according to the SIST EN ISO/IEC 17025 standard.

  • Analog DC input parameters are calibrated.

  • The factory calibration is done with the same method using DS-Calibrator, DS-CAL-BOX, FLUKE reference calibrator, and Agilent multimeter.

Acoustic Calibration Services

We offer traceable acoustic calibration services according to international IEC and ANSI standards and ensure that your instrument accurately indicates the required measurement parameters.

Calibrations are documented, traceable, and digitally signed in cooperation with accredited calibration laboratories.

To learn more about acoustic microphone calibration and sound measurement device calibration please visit the Acoustic Calibration Services webpage.

GPS and INS/IMU Calibration

We also perform the calibration for our GPS receivers, Inertial Measurement Units, and Inertial Navigation Systems (INS/IMU systems).

Calibration is performed on ISO certified equipment and with the same method as performed by ISO institutes.

Current Transducer Calibration

Factory and ISO calibration are possible for all Dewesoft current sensors and transducers as well as your existing current transducers.

All types of current transducers can be calibrated - Iron current clamps, Rogowski coils, Hall-type current sensors, Isolated Current transducers, Flux Gate, Shunts, Zero flux transducers, and others.

A multipoint AC/DC calibration up to kA range is performed. If needed, even an additional bandwidth calibration up to kHz range, as used in e.g. railway noise current measurements, is possible.

The Dewesoft Power and Power Quality Analyzers can be checked by a complete Power calibration (and ISO Power calibration) including current transducers and cabling at different power factors.


Award-Winning Data Acquisition Software Included for Free

Dewesoft data acquisition systems are bundled with award-winning DewesoftX data acquisition software. It is the world's most advanced and easy-to-use data recording and signal processing software. Software and hardware work together like magic. It offers simplicity as well as deep functionality to tackle any test and measurement task.

And the best part? You get lifetime FREE software updates and technical support. Software is evolving all the time. New major releases are released every 3 months constantly adding new features, optimizations, and other improvements. There are no hidden costs and will remain free forever.

Plug and Play

Connecting the DAQ system and sensors could not be faster or easier. DewesoftX software will automatically detect the connected DAQ systems and TEDS-equipped sensors will configure the channel configuration automatically. Features like:

  • Hardware auto-detection.

  • Smart sensors.

  • Sensor database.

  • Advanced TEDS sensor support.

  • Built-in unit conversion.

  • Real-time signal preview.

  • Wiring schematics.

will make you ready for measurement in seconds. Spend less time configuring your DAQ hardware and be more productive. Time is money!

Measure and Store

Powerful storing capabilities with more than 500 MB/s sustained stream rates mean you can always store data at full speed and never again worry about losing data that could compromise your tests. DewesoftX storing features offer:

  • Real-time data acquisition.

  • Synchronized acquisition of analog, counter, video, GPS, CAN bus, and many other sources.

  • Advanced triggering and alarms.

  • Single or multi-file storage.

  • Remote and distributed network storing.

  • Automated test sequences.

Even if you store gigabytes of data, our innovative data file format​​​​​​​ will ensure you can reload and analyze your data as fast as in a blink of an eye.

Analyse and Publish

NVH, structural testing, power analysis, and more. Forget about using several complex software solutions to record and analyze your data. DewesoftX offers one-stop shop for all test and measurement tasks. Our software offers:

  • Online and offline mathematics.

  • Flexible real-time visual displays.

  • Synchronized video support.

  • PDF and Word reporting tools.

  • Data export to many standard file formats.

  • Unlimited FREE license seats to view and analyze stored data.

DewesoftX is designed with the mindset of a test engineer and offers a complete testing solution in a single software package that is easy and joy to use.

Lifetime Free Updates

We are offering no-bluff or hidden cost licensing model for our data acquisition software. A new major version is released every three months bringing new features, performance boosts, bugfixes, with no additional cost to you. All updates for our existing users are free forever.

Unlimited License Seats

Our licensing model offers unlimited seats for analysing the recorded data. The recorded data file will bundle the license. Simply share data file with your colleagues and they can download software for free and ready to fully analyze the data. No additional licenses are needed.

Free Technical Support

We are putting our customers first. Free worldwide technical support is available for our DAQ software and hardware. Our technical support team is responsive and will attend to every support request and solve it in the fastest possible manner. Local technical support in our local offices is also available for you at no extra cost.

FAQFrequently asked questions

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