User's Manual

Offline measurement - Multipoint correlation with preprogrammed sensors
59
Step Description
12
In the menu displayed, decide whether the measurement shall be carried out
immediately or at a later time. Tap one of the two buttons:
Instantaneous measurement
(Explanation:
measurement takes
2min30sec and starts directly after the
sensors have been deployed)
Custom measurement
(Explanation:
Start and end time of the
measurement are set by the user)
13 Use the Time offset field to specify the
period of time which it will take to deploy
the sensors at the individual measuring
points.
The entered time span will later be used
as a "countdown to measurement".
Use the Start of measurement field to
specify when the measurement shall
start.
Use the End of measurement field to
specify when the measurement shall be
finished.
14 Tap the OK button. Tap the OK button.
Result: The sensors are programmed and synchronized successively.
The progress of the operation is shown on the screen.
When the operation is completed, a countdown appears on the screen showing
the time remaining before the measurement starts.
15
Deploy the sensors at the measuring
points.
Deploy the sensors at the measuring
points.
Result: Once the countdown reached
zero, the sensors start measuring.
A new countdown of 2min 30sec is
displayed on the Correlator screen
representing the total time of the
measurement. During this time, the
sensors simultaneously record 10 audio
blocks, each of 3 seconds length. Once
the countdown reached zero, the
measurement is completed.
Result: The sensors start measuring at
the programmed time.
A new countdown is displayed on the
Correlator screen showing the time
remaining until the programmed end of
measurement.
During this time, the sensors
simultaneously record 10 audio blocks,
each of 3 seconds length. Once the
countdown reached zero, the
measurement is completed.
16
When the measurement is completed, collect the sensors.
NOTE
Do not switch off the sensors.
Otherwise the recorded data would be lost.