Product Details
Water resistivity meter earth ground resistance meter resistance
meter
>>Product Description
Water resistivity meter earth ground resistance meter resistance
meter is a new generation of DC resistivity equipment which is based on
a series of advanced electrical equipment of CQGOLD for
resistivitysurvey, and 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.
>>Product Information
Receiving Unit |
Voltage channel | ±50V,±0.2% ±1LSB, 24bit A/D | | Input impedance | ≥50MΩ |
Maximum sampling resolution of voltage | 0.01μV | | Maximum sampling resolution of current | 0.02μA |
SP compensation range | ±10V | | Current channel | 5A, ±0.2% ±1LSB,24 bit A/D |
Suppression | ≥80dB for 50Hz industrial frequency | | | |
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 11, bipolar |
Others |
Mainframe interface | A,B,M,N, DC high voltage, external battery, | | Mainframe interface | charger, Bluetooth, and USB, etc |
Working temperature | -10℃~+50℃, 95 %RH | | Storage temperature | -20℃~+60℃ |
Weight | ≤ 4.2 Kg | | Dimension (L×W×H) | 270mm * 246mm * 175mm |
>>Main Applications
● Hydrology
● Environmental protection
● Engineering geophysical exploration
● Metal exploration
● Non-metal mineral resources exploration
>>Product Features
- Light and flexible: advanced transmitter and receiver are designed in one unit, small
size, light weight, built-in 200V high-voltage power supply allows
you to easily cope with most of survey work, usually needn’t
additional bulky battery box.
- Large power supply, wide range, high precision: 6000W (1200V * 5A) power supply
capacity, 100Vp-p of the wide voltage input range, high accuracy
measurement of small signals, so that equipment can be applied to
work well in high resistance areas, access to a deeper and better
measurement results.
- The "infinite" pole on panel: used to wiring the second and third pole. when using conventional
three-pole electrical measurement (combined profiles method and
combined electrical sounding method), the instrument can
automatically measure ρsA, ρsB, and ρs without operator
intervention, reduce human error and improve efficiency.
- Improved anti-interference technology and high accuracy: using multistage wave filtration, signal enhancement technology
and integrated electrical interference suppressor function (with
super anti-interference of common-mode and different mode).
- Automated: SP, drift and electrodes polarization compensation, compensation
range is ±10V.
- The over-voltage protection of receiving part up to 1200V which can protect the instrument on
any mistake operation.Transmitting unit supports over-voltage
protection, over-current protection and AB open-circuit protection
as well as DC high voltage reverse connection protection.
- Bluetooth technology, wireless remote control: Bluetooth technology enables the tablet PC to control the
WDA-1/WDA-1B mainframe in 10 meters. It enables all operations as
set parameters, start measurement, display result and save data
more easily.
- Tablet PC operate, powerful function:all operations as parameters setting, data display, data storage,
curve drawing all be finished on the tablet PC, easy and visiblefor
filed data procession.
- Grounding resistance check: this function enables the operator to know the ground condition
of each electrode.
- Fault diagnoses: the diagnose program quickly detects fault and finds the damaged
part.
- Sealed configuration: featuring waterproof, dust-proof design and long life time.
>>Product Details
>>About Package
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.
