The Geostuff model BHG-3 contains 3 geophones in an X-Y-Z orientation. The outside diameter is 1.9 inches (51 mm), small enough to fit inside a schedule-40, 2-inch plastic pipe. The clamping mechanism is a robust, steel spring compressed by a DC electric motor.

The BHG-3 features automatic orientation of horizontal geophones to any azimuth, through a fluxgate sensor powered from the same DC source as the clamping mechanism.

Downhole cables are available in 100', 150' and 300' lengths and plug to the control box. Two control boxes may be piggy-backed so that two borehole geophones can be read from a 12-channel seismograph. A cable from the control box terminates in a standard NK-27 connector.

29 X 11 X 20 inches
26 lbs.

     

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