In July 2022, our Calibration Laboratory received accreditation with the number AP 209 granted by the Polish Center for Accreditation (PCA) under the EA MLA international agreement. Thus, the Laboratory confirmed compliance with the requirements of PN-EN ISO/IEC 17025 "General requirements for the competence of testing and calibration laboratories" in the field of calibration of electrical quantities.
Yokogawa expands oscilloscope portfolio with 500 MHz and 350 MHz frequency band models
The Lutron SC941 is a 94 dB professional quality sound source for calibrating sound level meters with 0.5" diameter microphones.
Carefully insert the microphone of the sound level meter into the calibrator socket. Set the sound level meter to be calibrated to the range suitable for measuring the 94dB level. Turn on the calibrator's power supply (OFF/BATT TEST/ON switch in the "ON" position) - the calibrator will generate a standard tone of 1000Hz frequency and 94dB level. Use the meter's calibration potentiometer to bring the indication to exactly "94dB" or the instrument's pointer reaches the "CAL" position.