Contents
Table of Contents
1 Preliminary Notes...........................................................................................................4
1.1 Proprietary Notice......................................................................................................
1.2 Warnings, Cautions and Notes..................................................................................
1.3 Manuals and Software...............................................................................................
2 Introduction.....................................................................................................................5
2.1 System configuration.................................................................................................
2.2 Digital borehole installations......................................................................................
2.3 The hole lock system.................................................................................................
2.3.1 The single-jaw hole lock.....................................................................................
2.3.2 The three-jaw hole lock....................................................................................
3 First encounters............................................................................................................11
3.1 Unpacking and packing...........................................................................................
3.2 Handling notes.........................................................................................................
3.3 Control units.............................................................................................................
3.3.1 The break-out box............................................................................................
3.3.2 The hand-held control unit...............................................................................
3.3.3 The inclinometer monitor unit...........................................................................
3.4 Operating the hole-lock...........................................................................................
3.4.1 Disengaging the hole lock................................................................................
3.5 The surge suppressor sonde...................................................................................
3.6 Using Baffles............................................................................................................
4 Installing the 3TB in a borehole..................................................................................22
4.1 Installing a sensor with hole lock unit......................................................................
4.2 Installing a sensor using sand backfill.....................................................................
4.2.1 Procedure.........................................................................................................
4.3 Assembling the winch..............................................................................................
4.4 Earthing a borehole sensor.....................................................................................
4.4.1 Installations with AC power supplies...............................................................
4.4.2 Installations with DC power supplies...............................................................
4.4.3 External lightning protection.............................................................................
Issue G - November 2019