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WDDS-3
GOLD
Product Description
Factory Price Groundwater Exploration Digital DC Resistivity Meter for Deep Water Detection
| Parameter | WDDS-3 |
| Max voltage | ±1200V |
| Max current | 5A |
| Voltage channel | ±50V,±0.2%±1byte,24A/D |
| Voltage max sampling resolution | 0.02μν |
| Input resistance | ≥50MΩ |
| SP compensation range | ±10V |
| Current channel | 5A,±0.2%±1byte,24A/D |
| Current max sampling resolution | 0.02μA |
| Port | A,B,M,N,DC,RS-232,USB,and so on |
| Size | 270mmx246mmx175mm |
| Work temperature | -10℃~±50℃ |
Host: As the core control unit of the entire instrument, the host is responsible for generating a stable DC voltage signal, processing and analyzing the measured current and voltage signals, and finally calculating the resistivity value and displaying the results. It usually includes a high-precision power module, a signal amplification circuit, an analog-to-digital conversion circuit, a microprocessor, and a display module.
Electrode: The electrode is the part that is in direct contact with the object being measured, and its material and shape will vary according to different measurement requirements. Common electrode materials include copper, stainless steel, etc., and the shapes of electrodes include columnar, sheet, etc. In the four-electrode method measurement, the four electrodes are usually arranged linearly or rectangularly, and the distance between the electrodes needs to be reasonably selected according to the size of the object being measured and the measurement accuracy requirements.
Cable: Used to connect the host and the electrode, its function is to transmit current and voltage signals. In order to reduce the loss and interference during signal transmission, the cable is usually made of materials with good conductivity and shielding properties.
Measurement parameters
1.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, transmitting 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.
2.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. Since that distance between the current electrodes increases, transmitting current is injected deeper into the ground. Therefore, measured results are geologic reflection of the geological structure of different layers.
Packing and delivery
Compamy Introduction
Chongqing Gold M& E Equipment Co., Ltd. is specializes in manufacturing and development of high-resolution geophysical equipment such as Resistivity Meter, IP instrument, Electrical Resistivity Tomograph, Seismic equipment,magnetometer, borehole camera, well logging and drilling equipment. Also we supply the surveying equipment such as GPS, Total Station, Echo sounder and so on.
Factory
Our Services
With professional management team, technology research, development & design team, sales team and after-sale service team, Gold provides strong service support for pre-sale, in-sale work of customers, In addition, it will provide according to your actual requirements, the most suitable equipment and technical proposal for you as well as complete technology consulting, training and guidance in equipment installation, debugging and maintenance to solve customers’ problem during the process of instrument usage.
