Spectra Precision Invert Plate in Inches

Product overview

When a laser is to be set on a flat surface where the laser beam is not centered in the pipe, use the Spectra 1230 Heavy Duty Trivet Plate. Using this system, the elevation of the laser beam can be set by either measuring down from a grade offset hub outside the trench or up from the floor of the manhole to the beam.

This invert plate has a unit measure of inches while 1237 uses the metric unit of measure. This plate is composed of one-piece cast aluminum support plates that provide automatic self-centering of the Laser in 10 inches (250 mm), 12 inches (300 mm) or 15 inches (400 mm) pipe diameters.

These invert plates are used along with the 1239 Universal Fixed Pole for setups on the manhole bottom, outside of the manhole or in pipes larger than 15 inches (400 mm) diameter. 

The unique heavy-duty plate provides an easy way to self-center the laser in pipes in the 250 – 400 mm (10 – 15 inch) diameter range, or to be used as a stable base for open cut setups with the 1239 Pole Kit. Eliminates the need for multiple foot screws. Kit includes leveling feet for the 1230 and 1237 invert plates.

Features

• Self-centers the Dialgrade in 10-, 12- and 15-inch pipe
• Includes 1230 invert plate adjusting bolts
• Unit: Inches
• A cast aluminum support plate
• Provide automatic self-centering of the laser in 10, 12, or 15 inches pipe diameter
• Used along with the 1239 Universal Fixed Pole