bruel & kjaer 2240 sound level meter
bruel & kjaer 2240 sound level meter
bruel & kjaer 2240 sound level meter
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10<br />
Integrating-averaging Sound Level Meter Type <strong>2240</strong> – User Guide<br />
Fig.2.4<br />
L Cpeak para<strong>meter</strong><br />
displayed<br />
without being harmful or even annoying, so care should be taken to use L Cpeak only for its<br />
intended purpose. Such high values can be misleading in situations where they are not called<br />
for. Note: L Cpeak is not time-weighted.<br />
L AFmax , L Cpeak , and L Aeq <strong>sound</strong> <strong>level</strong> para<strong>meter</strong>s begin calculation only when a measurement is<br />
started (press ), and stop only when the measurement is stopped (press again). L AF is<br />
calculated automatically when the <strong>sound</strong> <strong>level</strong> <strong>meter</strong> is switched on.<br />
The measured values of L AFmax , L Cpeak , and L Aeq are cleared whenever a new measurement is<br />
started.<br />
Instrument Components<br />
Fig.2.5<br />
Front, side and back view of Type <strong>2240</strong> instrument<br />
3<br />
Front Panel Side Panel Back Panel<br />
1<br />
4<br />
8<br />
9<br />
10<br />
5<br />
2<br />
6 7<br />
11<br />
The following descriptions refer to the numbered instrument parts in Fig.2.5:<br />
1) Sound Level Meter body: The main part of your instrument.
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