Spectra Precision DG511-5 Pipe Laser w/Vertical Pole Assembly - inches

# Spectra Precision DG511-5 Pipe Laser w/Vertical Pole Assembly - inches **Model:** DG511-5 | **Price:** $5,795 | **Measurement:** Inches | **Mounting:** Vertical Pole Assembly ---

Overview

The Spectra Precision DG511-5 delivers professional-grade pipe laser accuracy combined with vertical pole mounting versatility for above-grade alignment work. This configuration is engineered for contractors who need elevated laser reference lines for drop connections, manhole rim alignment, and multi-level utility verification without ground-level setup constraints. The DG511-5 features a self-leveling grade laser with ±10% range, measuring in inches for precise pipe installation from 4" to 60" diameter. The integrated vertical pole assembly provides stable mounting up to 12 feet, allowing contractors to establish control lines over existing trenches, inside manholes, or at connection points where traditional tripod setups aren't practical. Unlike ground-mounted pipe lasers, this pole-mounted system eliminates sightline obstructions from equipment, materials, and workers. The DG511 transmitter generates a visible red beam with 1/16" accuracy at 100 feet, while the pole assembly features quick-lock height adjustment and 360° rotation for fast positioning on uneven terrain or inside structures.

Key Specifications

• Accuracy: ±1/16 inch at 100 feet
• Grade Range: ±10% (self-leveling)
• Laser Class: Class 3R visible red beam (635nm)
• Measurement System: Inches (imperial)
• Pipe Diameter Range: 4" to 60"
• Working Range: Up to 1,000 feet with detector
• Pole Height: Extends 4.5 to 12 feet
• Leveling System: Automatic self-leveling with out-of-level alert
• Power: Alkaline D-cell batteries (60+ hours runtime)
• Operating Temperature: 14°F to 122°F (-10°C to 50°C)
• IP Rating: IP67 (dust-tight, water-resistant)
• Display: Backlit LCD with battery/grade indicators

What's in the Kit

• DG511 Grade Laser Transmitter (inch measurement)
• Vertical Pole Assembly with quick-lock sections
• Pole Base Plate with leveling feet
• Remote Control with LCD display
• Alkaline D-Cell Battery Pack
• Protective Carrying Case (transmitter)
• Pole Carry Bag with shoulder strap
• Operator's Manual and Quick Reference Guide
• Calibration Certificate
• Two-Year Manufacturer Warranty

Job Applications

• Manhole Drop Connections: Position the pole inside existing manholes to establish precise invert elevations for incoming lateral pipes without scaffolding or confined space equipment intrusion
• Multi-Level Sewer Systems: Set vertical reference lines for tiered collection systems where gravity mains transition between elevations, ensuring proper slope continuation at each grade break
• Storm Drain Inlet Alignment: Mount above catch basin locations to verify rim-to-invert measurements and maintain consistent drainage slopes across parking lot or roadway installations
• Overhead Utility Clearance: Establish elevated sightlines above active trenches to verify minimum separation distances between new pipe installations and existing underground utilities
• Bridge Abutment Drainage: Position inside wing walls or abutment structures to align weep systems and underdrain outlets where conventional laser mounting isn't accessible
• Culvert Rehabilitation: Set reference grades inside existing culverts during slip-lining or CIPP operations, allowing crews to verify invert slopes without disturbing the laser during pipe insertion

Compatible Accessories

• Spectra Precision CR700 Pipe Laser Detector - Clamp-on receiver for 8" to 48" pipe
• RC602 Long-Range Remote Control - Extended 800-foot range with grade adjustment
• Magnetic Laser Targets - Various sizes for visual alignment verification
• Heavy-Duty Pole Stabilizer Kit - Guy wire system for windy conditions
• Rechargeable NiMH Battery Pack - Replacement for alkaline power system

Related Guides

• Vertical Pole Mounting: Setup Techniques for Elevated Pipe Laser Work
• Manhole Laser Alignment: Best Practices for Drop Connection Layout
• Field Calibration: Verifying Pipe Laser Accuracy on Active Jobs
• Inch vs. Metric Pipe Lasers: Choosing the Right Measurement System

FAQ

What's the advantage of pole mounting versus tripod mounting for pipe lasers?

Pole mounting elevates the laser transmitter above ground level, eliminating sightline obstructions from workers, equipment, and trench spoils. This configuration is essential for drop connections inside manholes, overhead clearance verification, and multi-level installations where the laser needs to be positioned above the working plane rather than at grade level.

Can the DG511-5 be used for both horizontal pipe installation and vertical alignment?

Yes. While primarily used for horizontal pipe grade with the pole providing elevated positioning, the DG511 can be rotated 90° on the pole mount to create plumb reference lines for shaft alignment, manhole stacking, or vertical utility runs. The self-leveling system works in both orientations within the ±10% range.

How stable is the pole assembly in outdoor conditions with wind?

The vertical pole assembly includes a weighted base plate with adjustable leveling feet for stability on uneven surfaces. For extended setups in moderate wind (10-15 mph), the system remains stable at full 12-foot extension. In higher winds or extended heights, the optional guy wire stabilizer kit is recommended to prevent vibration that could affect laser accuracy.

What's the difference between the DG511-5 (inches) and metric models?

The DG511-5 displays grades and measurements in inches and feet, matching U.S. construction plans and pipe specifications. Metric models (DG511-10) use millimeters and meters. The grade calculation, accuracy specifications, and hardware are identical—only the measurement display and remote control units differ. Choose based on your project plans and regional standards.

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