WDDS-2C/3C Earth Resistivity Sounding Meter
WDDS-2C/3C digital earth resistivity meteris a new generation of DC resistivity equipment which is based on a series of advanced electrical equipment which adopts 32-bit microcontroller technology and 24-bit A / D technology development. It applies for metal and nonmetal mineral resources detection, city geophysical exploration, railway and bridge inspection and so on, hydrology and engineering geology as seeking for ground water, inspecting dam base and flood protection levee for incipient faults, geothermal prospecting.
Power: 6000W, 1200V(2000Vp-p),5A (over-current protection)
Function: SP survey, 1D VES(vertical electrical resistivity soudning)
| • Self-potential survey |
| • Resistivity sounding (1D VES) |
| • Metal and nonmetal mineral resources detection |
| • City geophysical exploration, railway and bridge inspection and so on |
| • Hydrology and engineering geology as seeking for ground water, inspecting dam base and flood protection levee for incipient faults |
| • Geothermal prospecting |
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| • Light and fexible: advanced transmitter and receiver are designed in one unit, small and portable |
| • Up to 6000W of power supply, 48Vp-p voltage range, high precision |
| • 32-bit microcontroller technology and 24-bit A / D technology |
| • Bluetooth technology, wireless remote control: the system is controlled by tablet PC through Bluetooth technology, all operation easy and visiable |
| • Improved anti-interference technology and high accuracy |
| • USB port enables the instrument to communicate with other computers. |
| • Auto compensation of self-potential, drift and electrode polarization |
| • Receiver supports transient over-voltage protection for input voltage; transmitter supports over-voltage protection, over-current protection and AB open-circuit protection. |
| • WDDS-3C designed with internal high transmitting power for survey without external DC power source |
| • Built-in 12V lithum battery( also support external 12v battery) for 20 hours continously work. |
| • Able to store measuring data for more than 150,000 times, including voltage, current, resistivity, relative error, SP, array constant, measuring point and so on. |
| Transmitting | |
| Max transmitting power | 6000W |
| Maximum voltage | ± 1200V(2400Vp-p) |
| Maximum current | ±5A (over-current protection) |
| Power supply waveform | duty cycle is 1:1, bipolar |
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Receiving |
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| Input impedance | ≥50MΩ |
| Input voltage range | ± 24V, ± 0.5%± 1LSB, 24 bit A/D |
| Delay time | 0.1 ~ 5s (programmable) |
| SP compensation range | ± 10V |
| Max current sampling resolution | 0.02μA |
| Suppression | 80dB for 50Hz or 60Hz (industrial frequency interference) |
| Current measurement | 5A, ± 0.2%± 1LSB, 24 bit A/D |
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Others |
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| Working temperature | -10°C~+50°C (Environmental), 95 %RH |
| Storage temperature | -20°C~+60°C (Environmental) |
| Power supply | built-in 12V lithium battery(or external 12V power supply),more than 20 hours of continuous work |
| Internal transmitting power (only WDDS-3) |
Max current is 300mA, Max voltage is 200V |
| Weight |
≤4.2Kg(WDDS-2C); ≤5.5kg(WDDS-3C) |
| Dimension |
270mm * 246mm * 175mm(WDDS-2C) |
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Tablet PC |
Windows 10 64 bit operaitng system, 2GB memory, Bluetooh, USB |
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