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4.3.2 Pause Measurement and Back Erase
The running measurement can be temporarily paused by pressing the <Menu/Pause> key.
When the measurement is paused, the sound level meter will stop integrating the integral
data, but the instantaneous data such as SPL will continue to update and display. Pressing
<Menu/Pause> key again will resume the measurement and the integral data will continue to
integrate. Acoustic events during the time period that the sound level meter was paused will
not affect the total integral data.
Note that when the measurement is paused, the elapsed time will not pause, so the
suspension will not affect the integration period. The storage of SWN/OCT files is not affected
by pause function and it will continue to store data according to SWN Log.Step during
suspension. The Pause column of CSD file will show whether the current time period is
paused or not, 0: non-paused, 1: paused.
In the pause state, the LED indicator of the sound level meter flashes red and green
alternately.
When the measurement is paused, a back erase can be performed to restore the integral
data to 5 seconds ago. In the following two cases, the back erase function is invalid:
1. Enable the CSD Logger.
2. Before the pause operation was executed, the running time was less than 5 seconds, so
no data could be erased.
3. In 1/1 octave or 1/3 octave modes, when the Detector is Fast or Slow.
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