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Electrical Resistivity Survey Meter For Groundwater Investigation Polarization Instrument

Categories Geophysical Resistivity Meter
Brand Name: Gold
Model Number: WDJD-3A
Certification: ISO9001 CCC CE
Place of Origin: Chongqing, China
MOQ: 1 set
Price: Negotiated
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1 set per 5 days
Delivery Time: 5-8 working days
Packaging Details: Carton
Product name: dc resistivity and induced polarization
Voltage channel: ± 6V
Input impedance: ≥50MΩ
Current channel: 5A
Weight: ≤ 7 Kg
Application: Underground Water Detect
Display: 160x160 dot matrix LCD
Storage: ≤1GB
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Electrical Resistivity Survey Meter For Groundwater Investigation Polarization Instrument


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

  • Simple calculator fulfills calculation of geometric factor and other calculations on the spot.
  • For general resistivity and IP survey function, 8 types of electrode arrays are available. Electrode distance (namely “Schedule”) can be inputted or called. Geometric factor K can also be generated automatically or calculated manually.
  • For multi-electrode 2D resistivity imaging function, 18 types of electrode arrays are available. Extendable cross-section roll-along scan measurement allows the measuring cross-section to be prolonged unlimitedly without adding more electrodes. It is suitable for long cross-section survey and for solving geologic problems under any condition with low cost and high efficiency.
  • Schedule: the schedule can memorize 100 groups of electrode distances, avoiding repetitive input. Or you just input a schedule ID and set step to call the corresponding electrode distances.
  • Earth resistance inspection: earthing condition can be inspected at any time.
  • Mass data storage: WDJD-3A can memorize 3500 readings of data for resistivity and SP survey, 2500 readings of data for induced polarization (chargeability) survey and 43680 readings of data for multi-electrode 2D Resistivity Imaging.
  • All parameter and data are under power-failure protection; and thus data will not be lost even thought the system shuts down accidentally.
  • RS-232C port enables it to transfer data to computer.
  • Diagnostic program finds fault or failure and damaged parts quickly and accurately.
  • Sealed constitution: featuring waterproof and dustproof design, long life time and so on.

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
precisionif Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB.
Input impedance≥50MΩ
Apparent polarizability precision±1% ± 1LSB
SP compensation range±1V
Current channel5 A
precisionif 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 power4500W (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 output900V (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 output5A (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 width1~60s, 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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