L-742WW Precision Dual Scan® Laser

L-742 Ultra-precision Dual Scan Laser

Descriptions

Designed primarily for lower-accuracy roll alignments, the L-742WW Ultra-Precision Dual Scan® Laser has 2 vertical, auto-rotating laser planes. Both laser planes are flat within 0.5 arc seconds (.00003 in/ft or 0.0025 mm/m) in a 360º sweep and 0.25 arc second in a 90º sweep. The laser planes are perpendicular within 3 arc second (.00018 in/ft or 0.015 mm/m). It also features 2-arc-second illuminated level vials.

The laser is mounted on an adjustable base with coarse and fine pitch, roll and yaw adjustments, so that each laser plane can project the measurement reference out to 100 feet (30.5 m) in radius in all directions. The laser is completely self-contained and can operate on battery or AC power.

APPLICATIONS

  • For roll alignments with tolerances of .00006 in/ft. or 0.005 mm/m or greater, such as:
    • Paper mills
    • Printing press
    • Steel mill
    • Film line - normal & blown-film
  • Measuring and aligning:
    • The flatness and straightness of almost any vertical surface up to 100 feet (30.5 m) (squares, frames, ways, flanges, circles, etc.)
    • Plumbness of almost any surface (squares, frames, ways, flanges, circles, etc.)
    • The flatness and straightness of vertical surfaces
    • The straightness of vertically traversing axes of machine tools
    • The squareness of any 2 vertical surfaces up to 100 feet (30.5 m)
    • The parallelism of vertical surfaces
    • Checking machine tool guideway twist in vertical axes and parallelism between vertical guideways
    • Measuring surfaces up to 200 feet (61 meters) long with 1 setup
  • High accuracy water-jet cutting machines
  • High accuracy laser-cutting machines

FEATURES

  • 2 continuously rotating, vertical laser planes with operational range of 100 feet (30.5 m) in radius.
  • High accuracy:  laser planes flat to 0.5 arc seconds (.00003 in/ft or 0.0025 mm/m) in a 360º sweep and 0.25 arc second in a 90º sweep
  • Planes are mutually square with an accuracy of up to 3 arc sec (.00018 in/ft. or 0.015 mm/m).
  • Includes Pitch/Roll/Yaw adjustment base with coarse and fine adjustments.
  • Standard illuminated levels accurate to 3 arc second (.00018 in/ft. or 0.015 mm/m).
  • Optional L-740SP high-accuracy, split-prism illuminated levels accurate to 1 arc second (.00006 in/ft. or 0.005 mm/m). 
  • Uses A-1519-2.4ZB Single-Axis, Wireless Targets – 1.2 in (33 mm) PSD, .00002 in (0.0005 mm) resolution.
  • Optional Ultra-Accuracy Target:  A-1520-2.4ZB Single-Axis, Wireless Targets – .39 in (10 mm) PSD, .00001 in (0.00025 mm) resolution.
  • Wireless targets provide real-time alignment data updating simultaneously.
  • Align and monitor multiple axes simultaneously using up to 99 targets at the same time.
  • Initial setup typically takes 10-20 minutes or less.  Transfer setups take 5-10 minutes.
  • Short warm-up
  • Optional Windows Win7/8/10 software for quickly recording and analyzing machine geometry data
  • Battery or AC powered
  • Laser and targets fit into portable shipping case
  • L-742 version has 1 horizontal and 1 vertical laser plane used for flatness, straightness and squareness measurements

SPECIFICATIONS

Weight:

Laser: 6.50 lbs (3.0 kg)
Battery Pack: 1 lb (0.45 kg)
L-123 Base: 10 lbs (4.54 kg)

Material:

Laser: Aluminum and Stainless Steel
L-123 Base: Aluminum

Laser Type:

Visible diode, 670 nM wavelength Class II (Class I in scanning mode) .160 in (4.06mm) beam diameter

Laser Power:

<1mw/Beam

Beam Stability:

Translation: .0001 in/hr/ºF (.005mm/hr/ºC)
Angular: 0.2 arc sec/hr/ºF (0.36 arcsec/hr/ºC)

Beam Straightness:

.000015 in/ft. (0.001 mm/m) +/- .0001 in per 10 feet (3 m) air noise

Laser Plane Flatness:

0.5 arc seconds (.00003 in/ft or 0.0025 mm/m) in a 360º sweep

0.25 arc seconds (.000015 in/ft or 0.0013 mm/m) in a 90º sweep.

Laser Plane Squareness:

Side-to-rear laser plane squareness: within 3 arc seconds (.00018 in/ft or 0.015 mm/m)

Operating Modes:

1 or 2 planes, switched individually. 

2 vertical lasers planes.

Operating Range:

Each laser plane has a 100-foot (30.5 meters) operating range in radius

Power Supply:

9V DC external battery pack (2 cells) or 115/220V AC adapter

L-123 Base Adj. Range:

Coarse: +/- 1.5º

Fine: +/- 0.15º

L-123 Base Adj. Resolution:

Coarse: 1.7 arc sec (0.01 inches/100 ft or 0.250 mm/30m)

Fine: 0.17 arc sec (.001 inches/100 ft or 0.025 mm/30m)

Standard Level Vials:

Illuminated, accurate to 3 arc seconds or 0.00018 in/ft. (0.015 mm/m)

Optional Hi-Accuracy Level Vials:

L-740SP Split-Prism Upgrade:  accurate to 1 arc second (.00006 in/ft. or 0.005 mm/m).

DIMENSIONS