Multi-channel and high working efficiency- up to 5/10 independent channels improved the working efficiency especially for 3D imaging survey or cross-hole electrical CT survey.

• Portability and flexibility: The transmitting unit and the receiving unit are designed in one device, small and lightweight. It can conduct multi-electrode imaging in a wide variety of environments Unique and advanced measuring control. All array supports rolling-along survey with a unit section by moving the electrodes. It is easy to retest any single point or any section. WGMD-10 is designed with two cable sockets which enable cross-hole electrode array configuration works without switching control unit, and thus makes the measuring process much simpler and easier.


• Multiple functions: Voltage and current range and small signal accuracy are allowed to increase dramatically, which makes it suitable to work with rock sampling tester, high-power IP receiver, general electrical method instrument, IP instrument, water finder, 2D and 3D multi-electrode electrical method instrument, etc.


• Measuring various parameters, wide application: It can acquire data of voltage (VP), current (IP), apparent resistivity (RO), Self-Potential (SP), apparent polarizability (M~-M7), metal factor (G1~G7), half decay time (TH), deviation (r), induce polarization ratio (J), etc.


• High power supply, wide current range, high accuracy: Maximum power reaches 9000W (1500Vx6A), voltage input is 250¥p-p, small signal measurement precision is high (voltage is less than 0.1rV and current is less than 0.1mA with t1% measurement precision), both of which make WGMD-10 is an ideal device for regions of high resistivity and to achieve better measured results. On its panel there is a "B(∞)" port for pole pole and dipole-pole electrode array. As to dipole-pole array configuration, Res A, Res B, and Res can be measured automatically with high efficiency and fewer errors.


• 18 kinds of electrode arrays of multi-electrode system: In addition to the 10 electrode arrays of general electrical resistivity survey system, there are 18 electrode arrays for multi-electrode imaging. namely, Wenner Alpha array (WENNER α), Wenner Beta array (WENNER β), Wenner Gamma array (WENNER γ), Three-pole direct array (ÖAARRAY), Three-pole reverse array (ÕB ARRAY), Wenner Alpha 2 array (SCHLMBG), Self-Potential M array (SP-M), Self-Potential MN array (SP-MN), Charging M (CHG-M), Charging MN (CHG-MN), Two-pole Roll along array (2P AM), Three-pole Roll along array (3P A-MN and 3P AB-M), Dipole-dipole Roll along array (DIPOLE), MN-B, Cross-Hole Dipole/Equatorial Dipole-dipole array (CR-DIPOLE), gradient array.


• Extendable system: Data sampling and storing are controlled by pocket PC. Data management is easy. Software is flexible to be upgraded and extended (extending data storage capacity and collection software functions, also extend to special multi-electrode electrical instrument)


• Excellent anti-interface performance: Integrated with multistage filtration and signal enhancement technologies and suppresser against common mode interference and differential mode interference. Measurement precision is high. Automatically achieving SP, drift and electrode compensation (maximum compensation reaches t10V).


• Receiving unit supports transient over-voltage protection for input voltage: transmitting unit supports over-voltage protection, over-current protection and AB open- circuit protection as well as DC high voltage reverse connection protection • Earth resistance check: Earth resistance of AB Current electrodes and MN Potential electrode can be inspected at any time. Diagnosis program can find the fault or failure quickly and accurately, • Sealed constitution features waterproof and dust-proof design, long lifetime, ⁃ Flexible option of control: control unit may also be notebook PC to remotely manipulate measurement.

Technical Specifications:

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