User's Manual

Frequently used menus
25
2.8 Audio menu (when ground microphone is connected)
A ground microphone can be connected to the Correlator. When you open the
Pinpointing function, at first this audio menu appears. It is used to listen to the leak noise
via the supplied headphones.
Element Description
Minimum value
lowest noise level of the measurement as a numeric value in dB
Bar graph display
The bar's height represents the noise level.
The bar's color illustrates the frequency of the noise.
blue yellow
0 Hz 3300 Hz
Frequency spectrum
Tap to open the menu for adjusting the frequency filter.
Headphones ON / OFF
Button to enable/disable the connected headphones
Pitching function ON / OFF
This function lifts very low frequencies artificially up to a higher frequency
range to make them more audible to the user.
Microphone gain
slide to the left ... reduces the gain
slide to the right ... increases the gain
Headphone volume
slide to the left ... lower
slide to the right ... louder
Indicators
Buttons
Slide controls
Narrow bar: Instantaneous value
(currently measured level and frequency)
Broad bar: Minimum value
(lowest level and frequency of measurement)