Operation
Center / Offset On-Grade Location Switch:
Center on-grade
is selected for typical grading or cut/fill operations. This mode
indicates an equal amount of grade information above and
below on-grade. Offset on-grade is selected for typical excavation
operations. This excavation mode gives more information and
a larger display area above on-grade. This mode also enables
the plumb indication which shows the operator when the mast
and receiver are perpendicular to the ground (plumb) for more accurate grade
readings. Each selection uses a different array of LED's
Pressing the switch once flashes the LED of the current on-grade location.
Pressing the switch again while the LED is flashing changes the selection.
Plumb Indication:
The plumb indication shows when the mast and receiver
are perpendicular to the ground or beyond the selected deadband range. The
grade display LED's will flash quickly when the boom is extended, and will flash
slowly when the boom is retracted beyond this range. The LED grade display
is solid when the boom is within the plumb range setting.
Plumb Indication Accuracy:
Accuracy can be set to fine, standard or wide. Press
and hold the power switch and then press the on-grade location switch to select
and cycle the plumb accuracy function. The current selection will flash rapidly.
Pressing this switch combination while the status LED is activated will change
the current selection, sequencing from fine to standard to wide to fine, etc.
Center
On-grade
Selected,
Plumb Off
Center
On-grade
LED's used
Offset
On-grade
Selected,
Plumb On
Offset
On-grade
LED's used
Fine
± 0.5º
Standard
± 1.5º
Wide
± 2.5º
Solid
LED's
Slow
Flashing
Fast
Flashing
9
12
Operation
Out of Beam Indication.
The receiver has an Out Of Beam (OOB) indication
that can be turned on or off. When it is on, the LED grade display will indicate if
the receiver has moved beyond the vertical laser reception range. A sequence
of LED's will indicate which direction to move the blade or cutting edge to pick
up the laser beam. The sequence will indicate to move the edge down if it is
raised above the beam or to move the edge up if it is lowered below the beam.
The sequence will stop as soon as a laser signal is received. Otherwise it will
shut off after two minutes.
Low Battery Warning.
The receiver has a low battery warning
LED combination that is used when batteries are installed.
During normal operation with good batteries, the LED's are
off. When the batteries become low, the LED's will begin
to flash as a warning. The unit will operate as normal, with approximately 90
minutes of battery life remaining.
When the batteries are too low for proper operation, the LED's will be on
continuously and the four corner grade display LED's will flash. The unit will no
longer receive laser signals and the batteries must be replaced (or recharged
if using rechargeable batteries).
The warning does not operate when the receiver is connected to machine
power via a power cable.
The factory default setting is Out of Beam Indication on. To change the indication
setting, press the two outside switches (Blade Tilt and Display Brightness) at the
same time. The LED display will show a sequence inward toward on-grade when
the indication is on or outward from on-grade to confirm the indication is off.
Sequence to
lower implement
Sequence to
raise implement
Out of Beam Indication ON
