ADS Environmental Services Enigma-hyQ QR 775017 A2 - Manual (Page 50)

ADS Enigma/Enigma-Compact/Enigma-hyQ User Manual
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Post noise suppression
To turn off noise suppression, deselect the Noise Suppression checkbox.
Epochs
The three checkboxes associated with Epochs determine whether individual
epochs display or are hidden from view. Selecting the checkbox for an epoch
displays the corresponding epoch. Hidden epochs are not used in correlation
calculations.
Critical Noise Value
The critical noise value is defined as the lowest noise level recorded during
the logging period (i.e., the lowest consistent value of noise in dB). This
important parameter indicates the noise level when no other random noise,
such as traffic noise, is added to the leak noise. It is caused only by leak
noise. Therefore, comparing the critical noise values between loggers clearly
indicates relative logger position. The higher the critical value, the closer the
logger is to a leak.
Correlation Zoom
Zoom in to a specific section of the correlation display by setting a start and
finish point for the zoom. Click and hold the left mouse button at the desired
starting position. Without releasing the mouse button, drag it to the right-hand
limit of the desired section and then release the button to zoom the selected
section.