Xmic
24/01/05
MAN-095-0001 Revision B
© Palmer Environmental Ltd 2005
Page 15
MLP Mode
MLP stands for
M
inimum
L
evel
P
rofiling. This is performed by stepping along the line
of the suspect pipe and recording the sound levels. The ground microphone is placed
on the ground and the sample button pressed momentarily. The Xmic then records
the minimum noise over three seconds.
As each recording is made the histogram graph is built up showing the difference
between each reading visually and numerically making noise level comparison a
simple task.
For each sample taken a number appears on the top right of the screen. This noise
level value is a relative indicator for each sample. Once several readings have been
taken the operator can select a sample by pressing the + or - button on the right of
the Xmic. The numerical noise level value is then shown for each sample.