Using The Lmr 240; Power - Leica LMR 240 Manuel D'utilisation

LMR240-Leica.qxp 15/05/09 9:29 Page 4

3. Using the LMR 240

LED indicators On/Off switch;
also changes
deadband setting
Back plate with
strong magnets;
Above grade
attaches to machine
On-grade
On-grade
alignment notch
Magnet release lever
Below grade
Low battery
3 AA batteries
Press red On/Off key at the top of receiver to turn it on.
Changing deadband settings
(fine and coarse)
LEDs blink momentarily to indicate the setting: deadband (fine or
coarse accuracy) and channels. The last setting used stores in
memory and is the default when turned on.
Pressing On/Off will change the setting, in this sequence:
Coarse Fine Fine
3 channels 3 channels 5 channels
4
LEDs indicate grade direction: the blinking LEDs point in the
direction to move the bucket to reach grade.
3 - CHANNEL MODE
High or On Low or
Beam Grade Beam
Lost Lost
Slower-blinking LEDs are an out-of-beam indication (receiver has moved
beyond the reception range). The LED arrows show the direction to move
the bucket to pick up the laser beam again.
To turn off the receiver, hold the On/Off key for 3 seconds and release.
If the LMR240 does not receive any signal for an hour, it will shut off
automatically.
Back to Coarse
3 channels
5 - CHANNEL MODE
High or Near On Near Low or
Beam grade Grade grade Beam
Lost high low Lost

4. Power

The receiver uses 3 AA alkaline bat-
teries. Unscrew black cap at bottom
of unit to replace batteries; orient as
shown. Operating time is approxi-
mately 130 hours.
The low battery LED near base of
receiver will be lit when there are
about 8 hours remaining.
5
GB F E D I N FIN NL