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Testing and Calibration Laboratory
Discover the comprehensive services offered by the Sonel laboratory. We specialize in calibration of devices for measuring electrical and non-electrical quantities, as well as electrical standards, in accordance with the highest requirements of EN ISO/IEC 17025.
Learn more about our laboratory's offer
Testing and Calibration Laboratory of Sonel S.A. offers calibration services for measuring instruments of both electrical and non-electrical values.
for measuring electrical values and parameters of power networks
meters: voltage, current, residual current protection, insulation resistance, earth resistance, short circuit loop impedance measurement, resistance, network parameters, multimeters
electrical standards
calibrators, resistance standards
for measurements of non-electrical values
pyrometers, lux meters, thermal imaging cameras
Most of the calibrations of the SONEL S.A. instruments is performed based on the standard calibration procedures. We can provide an individual approach to the calibration process. Indicate the ranges and measurement points and we will prepare an offer tailored to your requirements.
Offer for the devices of other manufacturers
You don't have to give up the calibration service, even if you don't have a Sonel device. Within the scope of accreditation we calibrate also meters of other manufacturers.
We calibrate measuring meters from manufacturers such as:
Fluke, Chauvin Arnoux, BRYMEN, Gossen Metrawatt, Metrel, UNI-T, HT Italia, Kyoritsu, Megger, Hioki, CEM, Flir and many others
Check if your eqipment is on the list
If not, please contact us: [email protected]
We will determine the scope of calibration individually.
Show device list 
Waiting time up to 5 working days
Average rating 4.8 Satisfaction assessment of laboratory services customers
Laboratory and manufacturer's repair service in one place
Statement of conformity service We will interpret the calibration certificate for you
Fast and convenient calibration
Every meter that reaches us is important to us and we treat each one with the utmost care. The calibration process consists in comparing the indication of the calibrated instrument with the indication of the reference instrument. The reference instrument is much more accurate than the calibrated instrument. However, the calibration results along with their uncertainties are presented in the calibration certificate.
Use the online service request formGo to the form
Deliver device using available delivery methods
Confirm additional terms of the order (optional)
Pay for the order
We return the device by courier
Delivery:
- Deliver on your own. We send you back.
Request calibration online
It couldn't be simpler. The online form was created for our customers to make the process of ordering calibration services as simple as possible. Follow the steps in the form and order the service even faster.
Return shipping for free
Text and e-mail notification of order status changes and next calibration
Order management panel You can check the details and make the required decisions
Electronic calibration certificate/declaration of verification Complies with all requirements of ISO/IEC 17025
Remeber! When you opt out of receiving a paper document, you will receive your shipment faster. We will post it after the service has been completed and you will receive an e-document by email when you pay for the services.
About Sonel laboratory
Testing and Calibration Laboratory of Sonel S.A. offers calibration services for measuring instruments of both electrical and non-electrical values. Apart from standard calibration procedures, the laboratory is distinguished by the knowledge of Sonel products products in the scope of construction, time drift, etc. It enables the development of an optimal process of metrological verification, allowing to check the instrument in the wider possible range of its functionality and in the typical points for a given measurement.
We have implemented a management system compliant with the requirements of EN ISO/IEC 17025 standard “General requirements for the competence of testing and calibration laboratories.” We confirmed compliance with all the requirements of the standard by obtaining the Accreditation Certificate of Calibration Laboratory No. AP 173 issued by the Polish Centre for Accreditation in 2017. In the following years, we successively extended the scope of our accreditation to other areas. In terms of the number of performed calibration procedures, we are one of the largest laboratories of its kind in Poland. Over 30 years of experience and development allowed us to introduce to our offer services unique on the market. As one of the few laboratories, we can calibrate multifunction meters in a full range of functionality with accreditation.
The meters are calibrated at Sonel S.A. headquarters, at str. Wokulskiego 11, 58-100 Świdnica, Poland.
impedance and short-circuit loop resistance meters from the value of 100 mΩ (including high-current fault loop impedance meters). As one of a few companies, we have a test power network with a dedicated transformer. Measurements are performed the power network, which allows omitting imperfections and limitations of methods based on simulations.
insulation resistance meters and standards in the range up to 15 kV and 20 TΩ and standards up to 40 TΩ at voltage up to 1 kV. This service is unique in the world.
small resistance meters for measuring currents from fractions of mA to several hundred amperes.
PCA-accredited calibration certificates
Calibration certificate defines the relationship between a standard and an indication of a meter and states the uncertainty of measurement. The calibration competence of Testing and Calibration Laboratory of SONEL S. A. has been confirmed by an independent third party. Calibrations are performed according to standard procedures or based on individual customer requirements. The laboratory shall use methods of direct or indirect comparison to a standard, which are described in internal instructions. PCA accreditation are recognized worldwide.
We are accredited by the Polish Centre for Accreditation (PCA)
Accreditation certificate AP 173
Scope of accreditation AP 173
Check our scope of accreditation
Laboratory and Service regulations
Read before ordering
ILAC G-24
Guidelines for the determination of calibration intervals of measuring meters
Certified laboratories
Testing and Calibration Laboratory Sonel S.A. recommends, with regard to the calibration services of Sonel-branded equipment, the services of the following laboratories:
Caltek is the No 1 Privatized Calibration & Measurement laboratory in Singapore
ISO/IEC 17025:2017 Accreditation by Singapore Accreditation Council (SAC)
ARABIAN CALIBRATION AND DEV. REP. CO. LLC is a leading calibration service provider with a strong presence in UAE & other GCC countries
ISO/IEC 17025:2017 Accreditation by the GCC Accreditation Center (GAC)
Stratatek Test & Measurement is a leader in sales, calibration and service in Canada
Proven performance to ISO 17025 standard
Get a Sonel recommendation for your laboratory:
Frequently Asked Questions (FAQ)
We have gathered in one place the answers to the most frequently asked questions by customers.
For brand new instruments put into service, the next performance confirmation is recommended to be carried out within 12 months from the date of entry into service (date of purchase), but no later than 24 months from the date of the first check.
The next inspection is carried out by the Testing and Calibration Laboratory of Sonel S.A., and the issued document is called Calibration Certificate (instruments having the character of a standard) or Declaration of Verification (indicators, testers without the character of a standard).
Why is it worth calibrating meter device regularly?
A current calibration certificate:
- is a document commonly required in tender proceedings related to the performance of measurements,
- is a form of security in the event of claims of the principal (e.g. in case of failure), provides objective evidence of the efficiency of the instruments used,
- allows to determine the metrological condition of the instrument and its technical efficiency,
- contains designated corrections (errors), which can be taken into account in a given measurement procedure,
- allows you to analyze the results of cyclic calibrations, which provide important data in determining the time periods between calibrations.
What is a calibration certificate?See answer
How often should I check metering devices?See answer
Statement of conformity, is it on the calibration certificate?See answer
Accredited laboratory or not?See answer
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