Spectra Precision DG613 Information Guide

In a Manhole
The Laser can be setup in a manhole using a transit to
accurately set line. The transit is plumbed over the laser on a
mount that clamps to the manhole. The laser is projected
down the center of the pipe.
1. Set the Laser support in the manhole and attach it to the
support.
2. Adjust the laser to the chosen height above the invert and
on the vertical centerline of the exit hole for the proposed
pipe.
3. Point the Laser towards the next manhole.
4. Hold an engineering rule on the vertical centerline and
adjust the laser’s height to the desired height above the
invert.
30.5 cm pipe
(12 in.)
30.5 cm dia
(12 in.)
15 cm radius
(6 in.)
Laser beam

Spectra Precision DG613 Specifications

General

Brand	Spectra Precision
Model	DG613
Category	Measuring Instruments
Language	English