How to choose Fast/slow time weighted selection of GVDA Digital Sound Level Meter Noise Tester Sound Detector Decible Monitor 30-130dB Audio Measuring Instrument Alarm
Use the F/S button to select ‘FAST’ (125 ms) or ‘SLOW’ (1 sec) time weighting. Depending on the selection, ‘FAST’ or ‘SLOW’ appears on the display.
Select the ‘FAST’ response to capture noise peaks as well as fast-emerging noise. The ‘SLOW’ response is selected to monitor sound sources with consistent noise sound pressure levels, and also to average out rapidly changing noise. Fast response can be selected for most applications.
