Spectra Precision DG613 and DG813 pipe lasers are a new generation of DialGrade lasers for the installation of gravity flow pipelines.
The units are smaller in length than their predecessors—the DG511 and DG711. This shorter length is ideal when setting up the units in manholes with precast inverts and a tight radius, Trimble says. Both models have a grade range from -12 to +40 percent and are fully self-leveling over the entire grade range. The cross axis is also fully compensated providing quick set up and ensuring the laser will be level without having to manually rotate it in the invert. They have a 500-foot working range providing a single setup to lay pipe from one manhole to another.