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Chongqing Gold M& E Equipment Co., Ltd.
Address:  9F/10,Jintai Building, Nanping, 400060,Chongqing,China

Contact person:Michelle Li
Tel: 0086-023-62794421
Fax: 0086-023-62940030
Mobile/Whatsapp: 0086 15922636015
E-mail: master@hy-industry.com
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WGMD Multi-electrode Resistivity Surveying System

The instrument can be widely applied in metal and nonmetal mineral resources detection, city geophysical exploration, railway and bridge exploration, and other application. It is also applied in hydrologic geology and engineering geology such as searching for ground water, locate base of dam and flood protection levee incipient fault, can still used for geothermal prospecting.

Quantity:
  • WGMD-4 Resistivity Imaging
  • Gold
  • 9015800090

Product

Introduction:

  1. Multi-electrode resistivity method is special action in the fine exploration.

  2. According to the needs of users, multi-electrode resistivity measurement system by taking the WDJD-4 mutil-function digital DC induced polarization resistivity instrument as the control part, WDZJ-4 as multiplex electrode converter.

  3. The instrument can be widely applied in metal and nonmetal mineral resources detection, city geophysical exploration, railway and bridge exploration, and other application. It is also applied in hydrologic geology and engineering geology such as searching for ground water, locate base of dam and flood protection levee incipient fault, can still used for geothermal prospecting. 

2D Resistivity imaging


Specifitation:


WDJD-4 Res/IP Meter
Receiving
Voltage ± 6 V,±1 % ± 1LSB
Measurement accuracy if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB;
if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB
Input impedance ≥50MΩ
Measurement precision of apparent polarizability ± 1%± 1LSB
SP compensation range ± 10V
Current 6 A,±1% ± 1 LSB
Measurement accuracy if IP≥10mA, ± 5‰± 1LSB; if IP<10mA,± 1%± 1LSB
Suppression over 90Db for 50Hz industrial frequency (common mode interference or differential mode interference)
Transmitting
Maximum transmitting power ±6600W
Maximum voltage ±1100V
Maximum current ±56A (when voltage ≤900V)
Pulse width 1~60s, duty cycle is 1:1
Others
Working temperature -10°C~+50°C (Environmental), 95 %RH
Storage temperature -20°C~+50°C (Environmental)
Power supply internal 12V 9Ah rechargeable battery , lasts for 30 hours (or 12V external power supply)
Overall current ≤55mA
Weight ≤4.5Kg
Dimension (LxWxH) 270mmx246mmx175mm
WDZJ-4  Switcher
Max electrode connected 60 and 120 (for option)
Insulation impedance ≥500MΩ
Max working voltage 500VDC
Max working current 2.5ADC
Power supply Internal 7.4V 4AH rechargeable lithium battery, last for continuously 25 hours work
Working temperature -10°C~+50°C

Working array:

2D ERT


1. Electrode Array configuration: referring to electrical method survey, various electrode array configurations are optional, applicable for various geologic structures. An electrode array configuration represents that its electrodes are arranged in certain mode and move at a certain method. Generally, electric profiling and electric sounding are commonly used electrode array configurations.


2. Electric profiling: electric profiling is one category of electrical methods, including many electrode array configurations whose electrodes are featured by keeping a certain distance between each electrode, while all the electrodes roll along at the same time along the survey line to measure apparent resistivity. Since that distance between electrodes keeps unchanged during roll-along movement, output current is injected underground to a certain depth, measuring depth of the points on the survey line keeping the same; in other words, the resistivity curve is geologic reflection of a certain layer.


3.Vertical electric sounding: similar to electric profiling on variety, electric sounding includes many electrode array configurations. These electrode array configurations feature keeping measuring point position fixed but increasing distances among the electrodes.


ERT equipment



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