Product Details
Vertical Electrical Resistivity Meter For Underground Water
Detector Geophysical Digital Ip Survey Instrument
The WDDS-2C/3C digital resistivity meter, developed by GOLD, is a
highly advanced DC resistivity equipment that features
state-of-the-art technology. It incorporates 32-bit microcontroller
technology and 24-bit A/D technology, positioning it as a
cutting-edge solution for conducting accurate and reliable
resistivity surveys. This versatile instrument finds applications
in diverse fields such as mineral resource detection, geophysical
exploration in urban areas, railway and bridge inspections,
hydrology, engineering geology, and geothermal prospecting. It
offers exceptional capabilities for precise detection of both
metallic and non-metallic resources, groundwater exploration,
identification of faults in dam bases and flood protection levees,
and various other geophysical investigations.
WHAT CAN I DO WITH IT?
The WDDS-2C digital resistivity meter allows you to:
- Conduct mineral resource detection
- Perform geophysical exploration in urban areas
- Inspect railways and bridges
- Study hydrology and groundwater exploration
- Conduct engineering geology assessments
- Explore geothermal prospects
- Identify faults in dam bases and flood protection levees
WHAT IS ITS PRINCIPLE?
The WDDS-2C digital resistivity meter operates based on the
principle of electrical resistivity measurement. It utilizes the
concept that different materials and subsurface structures exhibit
varying electrical resistivity characteristics. By injecting a
controlled electrical current into the ground through electrodes
and measuring the resulting potential differences, the instrument
can determine the resistivity distribution of the subsurface.
Main Features
- Bluetooth technology and wireless remote control: Control the WDA-1/WDA-1B mainframe up to 10 meters away using
Bluetooth, simplifying tasks such as parameter setting,
measurements, result display, and data storage.
- Tablet PC operation with powerful functions: Perform all activities on a tablet PC, including parameter
setting, data display, storage, and curve drawing, streamlining
data processing.
- Grounding resistance check: Determine the ground condition of each electrode for accurate
assessments.
- Fault diagnoses: Instantly detect faults and locate damaged parts for efficient
troubleshooting.
- Sealed configuration: Waterproof, dust-proof design with a long lifespan.
- Light and flexible: Compact transmitter and receiver unit with a built-in high-voltage
power supply (only WDDS-3C), eliminating the need for additional
bulky battery boxes.
- Large power supply, wide range, high precision: 6000W power supply capacity, 100Vp-p wide voltage input range, and
high accuracy measurement of small signals for effective
performance in high resistance areas and obtaining accurate
measurement results at greater depths.
Technical Parameters
Receiving Unit |
Voltage channel | ±50V, ±0.2% ±1LSB, 24-bit A/D |
Maximum sampling resolution of voltage | 0.01μV |
Input impedance | ≥50MΩ |
SP compensation range | ±10V |
Current channel | 5A, ±0.2% ±1LSB, 24-bit A/D |
Maximum sampling resolution of current | 0.02μA |
Suppression | ≥80dB for 50Hz industrial frequency (common mode interference or
differential mode interference) |
Transmitting Unit |
Maximum transmitting power | 6000W |
Maximum supply voltage | ±1200V (2400Vp-p) |
Maximum supply current | ±5A (10Ap-p) |
Pulse waveform of power supply | duty cycle is 1:1, bipolar |
Others |
Instrument power source (WDDS-2C) | built-in 7.4V 5.2Ah lithium battery (or external 12V power supply) |
Instrument power source (WDDS-3C) | built-in 7.4V and 48V lithium battery (or external 12V power
supply) |
Mainframe interface | A, B, M, N, DC high voltage, external battery, charger, Bluetooth,
and USB, etc |
Built-in high-voltage power supply (only WDDS-3C) | Max current: 300mA, voltage options: 50V, 100V, 150V, 200V |
Working temperature | -10℃ to +50℃, 95% RH |
Storage temperature | -20℃ to +60℃ |
Weight (WDDS-2C) | ≤4.2 Kg |
Weight (WDDS-3C) | ≤5.7 Kg |
Dimensions (L×W×H) (WDDS-2) | 270mm x 246mm x 175mm |
Dimensions (L×W×H) (WDDS-3) | 350mm x 270mm x 200mm |
Product Details
About Us
Company Profile
Chongqing Gold Mechanical Electrical Equipment Co. Ltd. has been
actively involved in the design, development, and manufacturing of
geophysical exploration equipment for over four decades. Our
expertise encompasses various techniques used to capture images and
map subsurface features and structures such as minerals, oil and
gas reservoirs, groundwater, and geological formations.

At present, our company manufactures a diverse range of equipment
that encompasses resistivity meters, seismic receivers, magnetic
instruments, borehole loggers, and various other geophysical
sensors. Additionally, we offer geotechnical instruments such as
pile testers and drilling machines.

In collaboration with geologists, geophysicists, and other domain
experts, we design and develop instruments that cater to the unique
requirements of our clients. To maintain our leading edge in the
market and keep up with technological progress and scientific
advancements, we continuously invest in research and development to
ensure that our equipment is accurate, reliable, and efficient.
