15
4 Water leak detection
4.2.6
Magnifying-glass and on/off key
The analog display indicates
the relative noise level. The
display can be adapted to pre-
vailing conditions to make a
change in the display from one
measurement point to another
easier to detect. This adapta
-
tion switches the analog display
(instantaneous value) between
scale values 10, 100 and 1000
and alters
basic amplification for
the headphones.
10
=
high sensitivity, high
noise amplification
100 =
medium sensitivity,
medium noise ampli-
fication
1000 =
low sensitivity, low
noise amplification
Automatic adjustment takes
place to maintain the ratio be-
tween the current delayed-action
value and the instantaneous
value.
z
Press the microphone key.
The
A 100
is activated.
z
Press the magnifying-glass
key.
The sensitivity of the analog
display is altered.
z
The current sensitivity setting
is shown above and to the right
of the display.
