Spectra Precision LR50-DM Receiver with D20 Bolt-on Bulldozer Mast
NiMH Rechargeable Batteries
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Display with Plumb indicator
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The Spectra Precision® LR50 & LR50W Laser Machine Display Receivers are designed to be used as a stand-alone display receiver on grading and excavating equipment including: dozers, excavators, backhoes, scrapers, and box blades.
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| Spectra Precision LR50-DM Receiver INCLUDES |
- LR50 Receiver with Holding clamps
- Bulldozer Bolt-On Mount DM-20
- 4 x C-Cell NiMH Rechargeable Batteries
- Charger 120 Volt AC & Adapter
- Protective Laser Receiver Carrying Case
- Manual
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| Spectra LR50-DM Featured Highlights |
- Built-in blade tilt indicator helps the operators 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
- Offset on-grade for productive excavation provides additional above grade information for less undercuts
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| Spectra Precision LR50-DM Machine Receiver OVERVIEW |
Rugged 360-degree Laser Machine Display Receiver with Built-in Blade Tilt and Excavator Boom Plumb Indicator
The Spectra Precision® Laser LR50 Laser Machine Display Receiver is designed to be used as a stand-alone display receiver on grading and excavating equipment including: dozers, excavators, backhoes, scrapers, and box blades. The easy-to-use LR50 features versatile 360-degree laser reception and works with all types of rotating lasers on all types of machinery for fast, no-hassle setup. Rugged and waterproof, the LR50 receiver withstands all weather environments. Internal isolating shock mounts protect the electronics. The LR50W is designed to be used with the RD20 Wireless Remote Display. |
| Spectra Precision LR50-DM Receiver KEY FEATURES and BENEFITS |
- 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
- Up to six channels of grade information plus directional out-of-beam indictors
- LR50W links wirelessly to the RD20 in-cab display
- Two-Year Warranty - Reliability you can count on
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| Spectra Precision LR50-DM Receiver APPLICATIONS |
- Machine mounted grade checking
- Grading and leveling
- Excavation and trenching
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| Spectra Precision LR50 Receiver CHART |
| Part # |
Batteries |
Magnetic Mount |
| LR50 |
NiMH Rechargeable
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No |
| LR50-MM |
NiMH Rechargeable
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MM-1 |
| LR50-DM |
NiMH Rechargeable
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DM-20 |
| LR50-1 |
Alkaline |
No |
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| Spectra Precision LR50W Wireless Receiver CHART |
| Part # |
Batteries
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Magnetic Mount
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Remote Display
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| LR50W |
NiMH |
No |
RD20 |
| LR50W-MM |
NiMH |
MM-1 |
RD20 |
| LR50W-DM |
NiMH |
DM-20 |
RD20 |
| LR50W-2 |
NiMH |
No |
No |
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| Spectra Precision Laser Receiver Product Application |
| Machine Type |
Use Receiver's |
Application |
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CR600
LR20
LR50 |
Grading |
| Backhoes |
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CR600
LR20
LR30
- or -
LR30W with
Remote Display
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Elevation Display |
| Skid-steer Loader |
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CR600
LR20
LR50
- or -
LR50W with
Remote Display
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Elevation Display
Lift Control |
| Mini Excavator |
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LR30
LR50
- or -
LR30W/LR50W with
Remote Display |
Elevation Display
Lift Control |
| Skid-Steer w/blade |
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LR30
- or -
LR30W with
Remote Display |
Elevation Display
Lift Control |
| Smaller Dozer |
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LR60
- or -
LR60W with
Remote Display |
Elevation Display |
| Larger Excavator |
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LR50
- or -
LR50W with
Remote Display |
Elevation Display
Lift Control |
| Larger Dozer |
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| MACHINE LASER RECEIVER COMPARISON CHART |
| Specifications |
LR20 |
LR30 / LR30W |
LR50 / LR50W |
LR60 LR60W |
Number of
Display
Channels |
5-Channel |
5-Channel |
5-Channel
6-Channel in
Excavating Mode |
9-Channel |
ACCURACY:
Center on grade mode
(grading) |
Fine: 0.20"
Standard: 0.40"
Wide: 0.80" |
Fine: 0.20"
Standard: 0.45"
Wide: 1.25" |
Fine: 0.20"
Standard: 0.40"
Wide: 0.80" |
Setup 0.25"
Fine: 0.40"
Standard: 0.80"
Wide: 1.60" |
ACCURACY:
Offset on grade mode
(grading) |
Fine: 0.50"
Standard: 1.0"
Wide: 2.0" |
NA |
Fine: 0.50"
Standard: 1.0"
Wide: 2.0" |
Setup 0.25"
Fine: 0.50"
Standard: 1.0"
Wide: 2.0" |
ACE
Angle Compensation
Mode |
NA |
NA |
NA |
Fine: 0.50"
Standard: 1.0" |
| Blade-Tilt Accuracy |
NA |
NA |
±0.5°, ±1.5°, ±2.5° |
NA |
| Plumb-Swing Accuracy |
±0.5°, ±1.5°, ±2.5° |
NA |
±0.5°, ±1.5°, ±2.5° |
Standard: .05"
Angle Compensated
Mode: 1.0 in |
| Beam Reception |
360 |
360 |
360 |
360 |
| Vertical Reception |
8 |
6.75 |
6.75 |
8.75 |
LED Battery Life
Alkaline Bright / Dim
NiMH Bright / Dim |
35 hours |
50 - 75 hours
40 - 50 hours |
45 - 60 hours
30 - 45 hours |
45 - 75 hours
40 - 50 hours |
| Battery Recharge Time |
3-4 |
3-4 |
3-4 |
3-4 |
| Size |
9.5 x 4.38 x 1.85 |
13.5 x 5.6 x 5.9 |
13.5 x 5.6 x 5.9 |
15.5 x 5.6 x 5.9 |
| Weight |
2.5 |
5.5 |
5.5 |
6.0 |
| Receiver Warranty |
2 Years |
2 Years |
2 Years |
2 Years
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| Shipping Info |
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19x8x17 15#
43x7x7 15# |
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Machine Receiver - FEATURE COMPARISONS
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| LR20 |
Compact Laser Receiver
- 8-inch Receiving Height
- 360-degree laser reception provides large working area and range
- Super bright grade display with Green on-grade LED-s provides superior depth/elivation indication
- Center and offset on-grades are ideal for both grading and excavation applications
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LR30
LR30W |
Used on Grading and Excavating equipment including:
Dozers, Graders, Scrapers, Skid Steers, Box Blades and Levelers
- 6.75-inch Receiving Height
- 360-degree laser reception picks up the laser from all directions
- Five channels of grade information plus directional out-of-beam indicators
- Three selectable accuracies meet job tolerances from rough grading to final finishing.
- Ultra-bright LED's with Green on-grade provides easy-to-see display to match ambient lighting conditions
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LR50
LR50W |
Features Built-in Blade Tilt and Excavation Plumb Indicator
- 6.75-inch Receiving Height
- 360-degree laser reception provides large working area and range
- Built-in blade tilt indicator help 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
- Up to six channels of grade information
- Directional out of beam indicators
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LR60
LR60W |
Features Excavation Plumb Indicator and Angle Compensation Indication
- 8.75-inch Receiving Height
- 360-degree laser reception provides large working area and range
- Patented Angle Compensation Indication automatically calculates and corrects the grade display for the angle of the dipper arm
- Check Grade with the dipper arm extender or retracted up to 30-degrees
- Built-in plumb indicator for fast, accurate grade checking
- Center on-grade provides an equal amount of grade information above the below on-grade. Use on dozers graders, scrapers and box blades.
- Extended reception height stays in the beam longer providing addional grade information.
- Offset on-grade for productive excavation
- Up to eight channels of grade information plus directional out-of-beam indicators.
- Four selectable accuracies for eac on-grade location.
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