 |
DHTG-50/100 3D BOREHOLE GEOPHONE
|
|
DHTG-50/100 3D BOREHOLE GEOPHONE
|
 |
|
 |
The DHTG borehole geophone has been designed to satisfy the increasing demands of a highly specialised market. The probe manufactured entirely in stainless steel, the fiberglass case support and the field proven electronics makes the DHGT a reliable and robust field instrument. Its main characteristic is the clamping system, consisting of the progressive bending of an harmonic steel spring aside the probe. A powerful continuous current motor, mounted inside the probe and controlled by the surface electronics, pushes a piston fixed to one end of the stainless steel spring. When the piston comes back to its starting position, the progressive bending of the spring clamps the probe to the opposite wall. Pushing out the piston again unclamps the probe, which can then be easily pulled out of the hole. |
|
SPECIFICATIONS:
Stainless steel probe Clamping spring in harmonic steel Fibreglass case Cable reel Extractable reel handle Carrying handle and belt Cable reel with mechanical brake Easy to ballast for use in wells containing drilling mud Powered by 24V rechargeable batteries Built-in automatic battery charger 12Volt -10Watt motor with reduction gear Electronic control and protection against current overloads |
Lead-in cable graduated at 1 meter intervals, 50 or 100 m long Battery charger cable Physicals: 50 x 20 x 37 cm Weight: 14 kg Probe diameter: 40 mm Minimum diameter probe with spring: 65 mm Maximum diameter with standard spring: 170 mm Probe length: 600 mm ACCESSORIES: Long harmonic steel spring for larger diameter holes Stainless steel ballast for use in holes containing drilling mud |
BACK TO GEOPHONE / CABLE INDEX
