Barrie : Règlement no 2006-140, art. 7(3) — Noise By-law

Specifications

A sound level meter which meets the following specifications is a Type A lntegrating Sound Level Meter:

• (a) the sound level meter shall meet the specifications of a Type B Integrating Sound Level Meter;
• (b) the instrument shall be provided with an Internal elapsed-time clock;
• (c) for each sensitivity setting of the instrument, the amplifier shall have a power handling capacity at least 14 dB greater than the maximum sound level specified for that sensitivity setting;
• (d) the computation circuit shall operate over the usable dynamic range of the instrument with a linearity of ±1 dB for any sound with a ratio of peak pressure to root mean square pressure up to 5 (Crest Factor up to 5); and
• (e) the combination of windscreen, microphone, A-weighting network, amplifier and computation circuit shall have a usable dynamic range extending at least from 40 dBA to 120 dBA.