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
WELZEK Electronics T8290A Signal Generator and Analyzer features dual-channel, 32 ports, 2 GHz ultra-wide signal analysis bandwidth, and 22 GHz ultra-wide frequency test range, suitable for R&D and production testing scenarios. Certified by the China National Accreditation Service for Conformity Assessment (CNAS), the T8290A offers high-standard metrological calibration capability and can be used as a standard instrument.
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.
The China National Accreditation Service for Conformity Assessment (CNAS), approved and designated by the Certification and Accreditation Administration of China (CNCA) under the Regulations on Certification and Accreditation, is the national accreditation body for certification bodies, laboratories, inspection bodies and related organizations. Its core mission is to enhance laboratories' technical competence and management through a scientific and standardized evaluation system, ensuring the accuracy, reliability and traceability of test data.
1.Demonstrates technical competence for calibration/testing in accordance with international standards
2.Inclusion in the national list of accredited laboratories
3.Authorization to use the CNAS accreditation symbol
4.CNAS is a member of the International Laboratory Accreditation Cooperation (ILAC); CNAS-accredited laboratories are recognized by authorities in over 60 countries and regions
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.
