This video demonstrate the Calibration of Rion Sound Level Meter (SLM) - Model NL-52 using Rion Sound Calibrator - Model NL-75.
Field Calibration:
+ Calibrate the SLM BEFORE and AFTER each series of noise measurements.
+ Recalibrate each time the SLM is moved to different locations.
* Indication that the SLM is working correctly.
* Regulatory requirements (law suit).
# The variation BEFORE and AFTER the calibrations should be NO MORE or LESS than 1 dB(A). If the deviation of the calibration is GREATER than 1 dB(A) then the results obtained during the assessment are INVALID.
FOR EDUCATIONAL PURPOSES ONLY.