9
2.2
Operating modes
To change the operating mode, the „Turn down“ button (pos. 3) and
the „Turn up“ button (pos. 4) are to be pressed at the same time.
For a moment, the display will indicate that
now an adjustment operation is executed.
You can select between the three possible operating modes by
actuating the „Turn down“ (pos. 3) or the „Turn up“ button (pos. 4):
Automatic level adjustment
!
normal adjustment when switching on the
transmitter and for correlation;
By actuating the level button (pos. 2), this
adjustment can be repeated at any time. This
is recommended when e.g. the environment
noises were too loud during the first automatic
level adjustment.
Manual level adjustment
!
operating mode for the sonic speed
measurement;
During transmission the level button (pos.2)
is locked; now the level is adjusted by the
"Turn down" button (pos. 3) or the "Turn up"
button (pos. 4) and can be controlled with the
headphones.
Radio module switched off
!
operating mode for the electro-acoustic
water leak detection;
For this you will need an appropriate ground
microphone or a test rod. This adjustment is
announced by the regular blinking of the LCD
display. With the level button (pos. 2) the
headphones can be switched on or off.
The desired adjustment is acknowledged by activating the level
button (pos. 2).
