User's Manual

Additional measuring functions
59
The course of the real time measurement is shown on the Commander’s screen with a
running bar diagram:
Element Description
Identification number and comment of the observed logger
Diagram
Each bar represents a single noise recording.
X-axis ... course of measurement over time
Y-axis ... noise level in dB
The colour of the bar represents the frequency of the noise.
Blue Yellow
0 Hz 2,500 Hz
The point where the two green lines intersect marks the quietest recording in
the displayed measurement, the so-called “leak value”.
Antenna symbol
indicates that the Commander is wirelessly operational
Minimum value of the display (leak value)
Left-hand field … ESA value of the recording
Centre field … Noise level in dB for the quietest measurement
Right-hand field … Frequency of the noise in Hz
Current value of the display
Noise level (bar height) and frequency (bar colour) of the current measuring
value (including numeric values).
Buttons
Stop and Start can be used to cancel and continue the observation at any
time. However, the time gap between cancellation and continuation is not
shown.
Use the ESC button to end the function and return to the main menu.
The permanent wireless connection during the real time measurement requires a
lot of power. This has a detrimental effect on the lifetime of the logger’s battery.
Please consider this when using the function.
Display of
measured data
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5
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1
1
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6