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Place of Origin | Chongqing, China |
Brand Name | Gold |
Certification | ISO9001 CCC CE |
Model Number | WDJD-3A |
Electrical Resistivity Survey For Groundwater Investigation Induced Polarization Instrument
The WDJD-3A multi-function digital dc resistivity & ip instrument has changed the traditional electrical exploration equipment's large size, heavy weight, and insufficient professional use, making the instrument more miniaturized, lighter, and supporting intelligent analysis software, with simple operation and use Distinguished feature of convenience.
Main Features and Functions
Application
Extensive exploration of detailed surveys and general surveys of various metallic and non-metallic minerals
Extensive exploration for detailed surveys and general surveys of groundwater
It is widely used in environmental protection survey, electric power design, engineering prospecting, geothermal prospecting, coal mine goaf, geological disaster survey, etc.
Technical Specification
Receiving unit:
Voltage channel | ± 6V |
precision | if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB. |
Input impedance | ≥50MΩ |
Apparent polarizability precision | ±1% ± 1LSB |
SP compensation range | ±1V |
Current channel | 5 A |
precision | if Ip≥ 10mA, ± 5‰ ± 1 LSB; if Ip < 10 mA, ±1% ± 1 LSB |
Suppression | ≥80dB for 50Hz frequency industrial and electrical interference |
Transmitting unit:
Maximum transmitting power | 4500W (only when conducting general resistivity/IP survey. Regarding multi-electrode resistivity imaging, maximum transmitting power is 1125W which is limited by WDZJ-4 switcher) |
Maximum voltage output | 900V (1800V peak to peak, only for general resistivity/IP survey. Regarding multi-electrode resistivity imaging, maximum transmitting voltage is 450V DC which is limited by WDZJ-4 switcher) |
Maximum current output | 5A (only for general resistivity/IP survey. Regarding multi-electrode resistivity imaging, maximum current output is 2.5A DC which is limited by WDZJ-4 switcher) |
Pulse width | 1~60s, duty ratio 1:1 |
Others:
Working temperature | -10℃~50℃, 95 %RH |
Storage temperature | -20℃~60℃ |
Mainframe power source |
eight size-D dry cells (or nickel-cadmium batteries of the same specification) |
Overall current | ≤ 55mA |
Weight | ≤ 7 Kg |
Dimension (L*W*H) | 310mm*210mm*210mm |
Working temperature | -10°C~50°C |
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