Borehole 3D Geophones GFA 50/100

ZI 10007



GFA 50/100 3D borehole geo-phone is realized with 3x high sensitive geophones (nat.freq.10 Hz- 1 vertical and 2 horizontal sensors) oriented according to a triad of orthogonal Cartesian axes XYZ. Delivered with a cleat assembly to sustain its weight at the requested depth (GFA cable is graduated in meters), this borehole geophone has a pneumatic-mechanical clamping system.

Applications: DOWN HOLE / CROSSHOLE / Vs30

  • 3 x 10 Hz geophones (1vert.+2horiz.)
  • Cable length 50 or 100m, graduation 1 meter
  • For boreholes with diameter from 50 and 110mm (larger diam. on request)
  • Probe dimensions: diam. 50mm, length 570mm
  • Cable reel dimensions: 540x400x250mm
  • Total weight (reel+cable+probe): less then 12 kg for Mod. GFA-50
  • Cannon NK2721C or Souriau connector (other on request)
  • Cable reel with 50/100 m of cable
  • Pneumatic-mechanical clamping (with manual pump included)
  • Air purge valve

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