WGMD-60 2D Resistivity Tomography System
WGMD-60 geo-electrical 2D electrical tomography device is the new developed two-dimention electrical resistivity imaging (ERT) system, which integrated electrode switching and 200v transmitting high power in the mainframe. It support max 60 electrode switching.The whole system features light weight and high stability. It widly applys for different resistivity mapping or geopysical surveys as landslide survey, groundwater investigation, enginnering exploration and so on.
| • 2D multi-electrode resistivity imaging (max 60 pcs electrode) |
| • VES- vertical electrical sounding (resistivity) |
| • RP - resistivity profiling |
| • SP - self potential |
| • Groundwater exploration |
| • Geotechnical investigations |
| • Engineering geological exploration as factory foundations, highways, bridges, railways, civil engineering, hydrology, engineering, environmental, dam |
| • Pollution plumes mapping |
| • Geological surveys |
| • Mineral prospecting as metal (gold, copper..) and non-metallic resource(coal ..) |
| • Archaeology explration |
| • Landslides and other geological disaster exploration |
| • Detecting of cavities, underwater, borehole and cross-hole measurements |
|
• Advanced Measure Mode All electrodes are measured by rolling profile, moving the electrode can extend the section with out limit; support repeat measurement of any point and continue the measurement from any point. |
|
• Unique, auto measure for high quality data To set the power time flexibly , and the instrument can auto monitoring the variation of self-potentiall(SP), then adjust the start of measurement according to it for the high data quality. |
|
• Light and portable Transmitter, receiver, electrode switcher and transmitting power all designed in on unit, which features light weight, small demension, easy operation. |
|
• Wide power range, high precision Wide input voltage range up to 48Vp-p, high measurement accuracy of small-signal which even applys for the field with high grounding resistance. |
|
• Electrode Table Support to save up to 100 group electrode distance table before field survey, which improve the working efficiency. |
| • 32 bit microcontroller for full English human-machine interface and acquisition control, acquisition parameters setting, data display and storage, a variety of curve visuable. |
| • 2GB memory for more than 10 million set of data(including voltage, current, apparent resistivity, spontaneous potential), or about 18,000 multi-electrode phudosection ( take 552 measurement points for example). The data will not lost when power off suddently. |
|
• Storage data by U disk format
The data could be export throught USB interface; the instrument will be auto recognized as U disk by PC, easy on operation. |
|
• Anti-interference technology Take multi-level filtering technology with signal enhancement technology to ensure the high measuring precision. |
| • Automatic self potential, drift and electrode polarization compensation, up to ± 10V. |
|
• Receiving part with instant overvoltage protection; transmitting part with protections of over-voltage, over-current, AB open circuit and DC inverse connected.
|
|
• Grounding resistance check
Support to check the grounding resistance of AB electrode and MN electrode. |
| • Diagnostics can quickly and accurately confirm the faults of the device |
| • Sealed box with the advantage of anti-moisture, anti-dust, long life . |
| Receiving | |
|
Voltage channel
|
±24V, ± 5‰ ± 1LSB; 24 bit A/D |
|
Voltage sample resolution
|
0.01μV |
|
Input impedance
|
≥50MΩ |
|
SP compensation
|
±10V |
|
Current channel
|
3.5A, ±0.5% ± 1LSB, 24 bit A/D |
|
Current sample resolution
|
0.02μV |
| Suppression | ≥80dB for 50Hz industrial frequency |
|
Transmitting |
|
| Max transmitting power | 1750W |
|
Max transmitting voltage
|
±500V |
|
Max transmitting current
|
±3.5A |
| Transmitting wave | +on, off, -on, off ; bipolar |
|
Internal switching |
|
|
Switching number
|
60 channels |
|
Isolution
|
≥500ＭΩ |
|
Max working voltage
|
500VDC |
| Max working current | 3ＡDC |
|
Internal transmitting power ( it is available to connect with external power also) |
|
|
Transmitting power
|
50v, 100v, 150v, 200v for option |
| Transmitting current | ≤300mA |
|
Others |
|
| Display | 160*160 dot matrix LCD |
| Storage | ≥2GB |
| Mainframe internal power | internal 48v lithium battery for at least 8 hours work (refer to field work) |
| Interface | A/B/M/N, DC power input (+/-), charge port, USB |
| Dimension | 485mm * 392mm * 192mm |
| Weight | ≤12.3kg |
| Working temperature | -10°C~+50°C |
| Storage temperature | -20°C~+60°C |
ENGLISH
Chinese
Russian
