Guralp Systems CMG-1T - Manual (Page 31)

Operator’s Guide CMG-1T Ocean Bottom
Seismometer
September, 1999, Issue C Section 9,
Page 1
9. MOUNTING OF THE LEVELLING SYSTEM
Three fixing bolt positions are provided to fix the levelling system within a
pressure housing, as shown in the diagram.
The positions of the mounting holes are given in the following drawings
together with a suggested method of electrically isolating the levelling system
from it’s casing.