Guralp Systems Limited
MAN-AFT-0001 - Güralp Affinity - User's Guide
Section Index: 11.1 Description 11.2 Installation

Chapter 11. The Borehole Hanger

11.1 Description

The Affinity Borehole Hanger is a welded steel frame, which is designed to fit into the top of a borehole casing, in place of a trap plate. It is made to securely carry an Affinity unit flush with the top of the borehole casing.

The Borehole Hanger top plate serves in place of a trap plate, giving a secure surface against which to install a clamp on the installation strain wire.

The hanger frame is designed so that the Affinity unit may be removed for service without disturbing the seismometer installation.

11.2 Installation