
In 2023, WELZEK established an accredited metrology center.
In 2025, the WELZEK Metrology Center passed the CNAS re-assessment and was re-accredited.

01DC Stabilized Power Supply
02TDMA-GSM
03CDMA
04WCDMA
05LTE
06Bluetooth Tester
07Wireless LAN Tester
The WELZEK Electronics T8290A is a CNAS-certified signal generator and analyzer that serves as a standard instrument for R&D and production testing scenarios.
T8290A Metrology System features high efficiency, multi-functionality, and enhanced portability.
The T8290A standard instrument features dual-channel, 32 ports, enabling simultaneous calibration of multiple devices under test (DUTs).
Supports 3rd harmonic measurement at WiFi 7.125 GHz,
as well as signal generation and demodulation in spectrum testing.
The powerful instrument functions of the T8290A make the metrology system more streamlined,
easy to maintain, and ensure operational stability.

CNAS, China's national accreditation body under CNCA, accredits labs and inspection bodies to enhance their technical competence and management, ensuring accurate, reliable, and traceable test data.
1.Calibration/testing to international standards
2.National accredited lab listing
3.Authorized to use CNAS symbol
4.ILAC member; recognized in 60+ countries
Over time, instrument accuracy may decline due to mechanical wear, component aging, and environmental factors (e.g., temperature and humidity changes). Annual calibration detects and corrects these deviations, ensuring measurement results remain consistent with true values.
Instrument measurement data is the basis for process control. Inaccurate instruments can lead to loss of product parameters, quality fluctuations, or even non-conforming products. Annual calibration detects potential issues early, ensuring stable and consistent production.
During metrology, technicians thoroughly inspect instruments to detect potential mechanical issues or signs of component aging. Timely repair or replacement prevents minor problems from escalating into major failures, thereby extending the service life of the instruments.