Spectra Precision LR20 Laser Machine Display Receiver - Manual (Page 2)

Versatile, 360-Degree Reception
Works with all types of
rotating lasers and on all
types of machinery for fast,
no-hassle setup.
Multiple Accuracy Choices
Offers maximum flexibility to
meet jobsite requirements, from
rough grading to final finishing.
Wireless Remote Capability
Provides in-cab display of
elevation and audible signals
Adjustable, Ultra-bright LED
with Green On-Grade Display
Provides user selectable, easy-
to-see display to match ambient
lighting conditions.
Out-of-Laser Beam Indication
Selectable on /off indicator
directs which way to move
and get back in the beam.
Two-Year Warranty
Reliability you can count on.
Power Options
Choose alkaline batteries,
nickel metal hydride
rechargeable batteries, or a
power cord that connects
directly to the machine power.
Rugged & Waterproof
Durable polycarbonate and
aluminum die cast housings
withstand all weather and
construction site conditions.
Internal isolating shock mounts
protect the electronics.
LR50 for Excavating
and Grading
Features built-in
blade tilt and excavator
boom plumb indicator
■ ■
Built-in blade tilt
indicator helps
the operator
keep the blade
level for increased
accuracy and
productivity
■ ■
Center On-grade
provides an equal
amount of grade information above and
below on-grade. Use on dozers, graders,
scrapers and box blades
■ ■
Built-in plumb indicator for fast, accurate
grade checking in excavation applications
■ ■
Offset on-grade gives you more range
above grade using the entire receiver for
more productive excavation
■ ■
LR50W links wirelessly to the RD20
in-cab display
LR20 for Grade
and Depth Control
Ideal for use on
mini-excavators
and compact machines
■ ■
8-inch, 360-degree laser
reception provides large
working area and range
■ ■
Built in plumb indicator
for fast, accurate grade
checking in mini-
excavator applications
■ ■
Super bright grade display with green
“on-grade” LEDs provides superior
depth/elevation indication
■ ■
Push button setup for ease of use and
application flexibility
■ ■
System package with mini magnetic
mount fits in compact carrying case for
easy storage and transport
■ ■
Center and offset on-grades are
ideal for both grading and
excavating applications
LR30 for
General Grading
Used on dozers and
leveling equipment
■ ■
Use on grading
equipment
including dozers,
scrapers, skid steers
and levelers
■ ■
Five channels
of grade
information
plus directional
and out-of-beam indicator
■ ■
Three selectable accuracies meet
job tolerances from rough grading
to final finishing
■ ■
Full 360-degree reception picks up the
laser from all directions
■ ■
LR30W links wirelessly to the RD20
in-cab display
RD20 Wireless
Remote Display
Wireless remote
mounts in the cab
and displays grade
information to the
operator. Helps
keep focus on the
work and not on
the receiver for
higher productivity.
Works with LR30W,
LR50W & LR60W.
Tough, Affordable Spectra Precision Laser Machine Display Receivers
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