Product
The 3T borehole system designed for borehole diameters of 99 to 203 mm
The 3T analogue sensors can be combined with a DM24 borehole digitiser and EAM data acquisition module to build a fully networked authenticating digital instrument inside a single borehole.
The instrument is supplied with surge protection and a strain relief mechanism to isolate the sensors in the instrument from motions in the cable.
The flexible, modular design offers a range of installation possibilities.
Covers the complete seismic spectrum with a single transfer function
The 3T family offers standard frequency responses of either a 120 s or a 360 s long period corner, other bespoke options are available on request
Hybrid velocity-acceleration responses available offering unrivalled dynamic range.
Single-jaw hole lock for 99 to 203 mm diameter boreholes, or backfilwith sand to minimise convection
Waterproof and durable with O-ring seals throughout
Built-in inclinometer option for attitude checking
Operates with a tilt tolerance of up to 2.5 º with an option to increase this to 12.5 º
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