The L-703SP Surface Plate Calibration System offers a much faster and highly accurate way to check the flatness calibration of granite and other types of surface plates:

• Small, compact and light weight laser system with newly designed fixtures and Plane6 Surface Plate Calibration Software to speed up calibration process.
• L-703S Spindle & Straightness Laser is a Geometry laser, not an interferometer, and much easier to use.  Breaking the beam is OK!
• T-1297 3-Axis Wireless Straightness Target with a resolution of 10 µin. (0.25 µm), 2-axis, super-linear PSD sensor, Bluetooth communication and a Li-Ion rechargeable battery with 14+ hours life.
• Target measuring base has ±10 µin. (±0.25 µm) mechanical repeatability.
• Easy & fast setup that does not require the plate to be earth level.
• Unique corner-locating tools set the straight edges at the proper border width without marking grid lines the plate!
• 30-60% faster than electronic levels and interferometers.
• Comes with built-in straight edge and dimension scale for fast data taking.
  • The standard kit comes with straight-edge lengths up to 72 in. (1.83 m) for plates up to ( 48×48 in. (1.22×1.22 m).
  • Add additional add-on edges for a total length of 126 in. (3.2 m) for plates up to 72×144 in. (1.83×3.66 m).  More can be added.
• A measuring increment of as little as .38 in. (9.5 mm) means you don’t need to “cheat” on the last point as most do with electronic levels.
• Plane6 Software features a 3-step procedure that guides you through the process making the system easier to learn.
• The L-703SP kit can also be used for a quick spot-check of measurement lines when re-lapping a plate that is out of spec.  It only takes 2-3 minutes to spot check the flatness of a line.  No need to measure the entire plate to see how well the lapping went.  A big time saver!