GD-20 Series Geoelectric system

GD-20 series of geoelectric system is newly developed, compared with similar products with a large number of breakthroughs in the new multi-channel electrical system, which has a large range of transmission power, high signal accuracy, test function, multi-channel acquisition and testing wiring simple and portable, long-term use under lower costs for maintenance.

GD-20 can be used for SP(Spontaneous Potential) ,AR(Apparent Resistivity) and IP(Induced Polarization). GD-20 functions are not limited in conventional(VES) and conventional 2D or 3D devices with ERT for cross-section testing, But also well performing in unique marine test technique. According to different configurations, which has divided into Senior,Supreme 2D, Supreme 2D +, S and Advanced 2D four models. Meanwhile, Low configuration can be upgraded to the high-level configuration with online upgradation technique.

Model&Functions:

Applications:

Features:

Transmitting, Receiving integrated, Smaller size, Light weight, portable and flexible;

The cable system uses a sub-centralized design, Making full use of unique CL-20 dual-channels intelligent cable head to achieve switch  ERT measuring of each electrode, so that the section can be infinitely connected to meet the deep profile and 3D ERT exploration needs; When connect to distributed cable,It can complete the 3D ERT among the well, well and other wells areas;

Unique Geomative Studio data management software, which can quickly complete setting issues indoor by PC ,That is definitely simply the measuring test process and user can do test by one-bottom when outdoor operations;

The system has automatic detection function, including grounding resistance, electrode switch and cable leader,so as to maximize the quality of the test data. During the test, the current data points, the location of the power supply electrode and the measuring electrode are simultaneously displayed, monitoring the supply current, the measured potential curve.

Larger power supply, ultra-wide range, ultra-high precision —— up to 7200W power supply capacity, smallest signal measurement accuracy (voltage down to 0.1mV and current as small as 0.1mA can still achieved± 1% of the measurement accuracy ), So that the instrument can be better applied to high resistance areas work,obtained deeper and better measurement results.

Equipped with dual distributed high-density cable ports, cross-hole ERT measurement eliminates the needs of a transition switch controller parts, the whole process is more compact and easier

The average value, signal-to-noise ratio, voltage, current and apparent resistivity can be calculated automatically for each measurement, and the resistivity value is automatically calculated according to the device setted by the user.

Applying multi-level filtering and signal enhancement techniques, integrated circuit interference suppressor, hardware and software have a noise suppression function, high precision.

Automatically SP(Spontaneous potential), drift and electrode polarization compensation,compensation range up to ± 10V

Receiver has the instantaneous over-voltage input protection,Transmitter has also the over-voltage, over-current and AB short-circuit protection setting.

The diagnostic program can quickly and accurately determine the location of the fault and the mainly damaged device.

Fully sealed box has advantages of waterproof, dustproof, quakeproof, long-term life ect.