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Trimble Construction Division, 5475 Kellenburger Road, Dayton, OH 45424, USA

registered in the United States Patent and Trademark Office and in other countries. All other trademarks are the property of their respective owners. PN 022482-

374 (12/06)

http://constructionpartners.trimble.com Page 1

December 2005 Spectra Precision Laser Dealer Confidential

Spectra Precision Laser LR50 Receiver

Rugged 360-degree laser receiver with blade tilt and

boom plumb indication

General Description

The Spectra Precision

Laser LR50 Laser Receiver is designed to be used

as a stand-alone display receiver for skid-steer loaders, backhoes,

excavators, dozers and trenchers. Designed for use in harsh environments,

the LR50 is 100% weatherproof and features 360-degree laser detection.

Standard Features

• Built-in blade tilt indication—helps the operator keep the blade

level for increased production and accuracy. Can be programmed

to match an existing or known grade for slope matching

operations.

• Built-in plumb indication—for quick and accurate grade

checking on excavators and backhoes.

• Offset On-grade—provides more information above grade using

the entire receiver for productive excavation.

• Selectable accuracy—lets you match your application

requirements. Using the right accuracy for the job means clearer

feedback to the operator and less display “jitter.” Work to the

tolerances demanded by the job by selecting the correct on-grade

accuracy.

• Selectable on-grade accuracy—allows configuration of the LR50 to match the job site

tolerances.

• Precise laser strike positions—for more accurate grade control. Unlike other laser receivers that

provide only 5 to 7 fixed relative grade regions, the LR50 laser receiver provides a continuous,

absolute laser strike position to precisely measure the actual height deviation from “On Grade.”

This feature gives you the highest accuracy and grade performance.

Summary of content (3 pages)

PAGE 1
December 2005 Spectra Precision Laser Dealer Confidential Spectra Precision Laser LR50 Receiver Rugged 360-degree laser receiver with blade tilt and boom plumb indication General Description The Spectra Precision® Laser LR50 Laser Receiver is designed to be used as a stand-alone display receiver for skid-steer loaders, backhoes, excavators, dozers and trenchers. Designed for use in harsh environments, the LR50 is 100% weatherproof and features 360-degree laser detection.
PAGE 2
• Designed for construction—Shock mounted electronics for stable performance and tough aluminum/poly carbonate housing for superior knock and drop protection. Sealed housing and battery chamber is designed and built to the most demanding construction industry standards. • Receiving Windows—include four sets of photocell that are equally spaced to allow for 360 degree reception. • Super-Bright LEDs—are highly visible and graphically display blade or bucket position.
PAGE 3
Specifications FEATURE SPECIFICATION Beam Reception Range Operating Range Laser RPM Vertical Reception Accuracy—Center On-Grade (Grading) 360 degrees Over 460 m (1500 ft) radius, laser dependent Minimum: 105; Maximum: 1200 171 mm (6.75 in.) Fine: 5 mm (0.20 in.) Standard: 10 mm (0.40 in.) Wide: 20 mm (0.80 in.) Fine: 12 mm (0.50 in.) Standard: 25 mm (1.0 in.) Wide: 50 mm (2.0 in.) ± 0.5°, ± 1.5°, ± 2.5° ± 0.5°, ± 1.5°, ± 2.