JIS C 1509-1:2017

Introduction1 Scope2 Normative references3 Definitions4 Reference environmental conditions5 Performance specifications 5.1 General 5.2 Adjustments to indicates levels 5.3 Directional response 5.4 Frequency weightings 5.5 Level linearity 5.6 Self-generated noise 5.7 Time weightings F and S 5.8 Toneburst response 5.9 Response to repeated tonebursts 5.10 Overload indication 5.11 Underrange indication 5.12 Peak C sound level 5.13 Reset 5.14 Thresholds 5.15 Display 5.16 Analogue or digital output 5.17 Timing facilities 5.18 Radio frequency emissions and disturbances to a public power supply 5.19 Crosstalk 5.20 Power supply6 Environmental, electrostatic, and radio frequency criteria 6.1 General 6.2 Static pressure 6.3 Air temperature 6.4 Humidity 6.5 Electrostatic discharge 6.6 AC power frequency and radio frequency fields7 Provision for use with auxiliary devices8 Marking9 Instruction manualAnnex A (normative) Maximum expanded uncertainties of measurementAnnex B (informative) AU weightingAnnex C (informative) specifications for time-weighting I (impulse)Bibliography

Provides an electroacoustical performance specifications for three kinds of sound measuring instruments: a conventional sound level meter that measures exponential time-weighted sound level; an integrating averaging sound level meter that measures time-average sound level; and an integrating sound level meter that measures sound exposure level.

2017 [20/09/2017]2005(R2014) [20/10/2014]2005(R2009) [01/10/2009]2005 [20/03/2005]