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WDDS-3
GOLD
Product Description
Groundwater Resistivity Tomography IP Resistivity for Mineral Exploration
The electrical resistivity method is an active geophysical technique. It employs an artificial source which is introduced into the ground though a pair of electrodes. The procedure involves measurement of potential difference between other two electrodes in the vicinity of current flow. Apparent resistivity is calculated by using the potential difference for the interpretation. These electrodes by which current is introduced into the ground are called Current electrodes and electrodes between which the potential difference is measured are called Potential electrodes.
The WDDS-3 digital resistivity meter is a compact and lightweight unit with an integrated transmitter and receiver. It features a built-in 200V high-voltage power supply, eliminating the need for additional batteries. With high precision, 6000W power supply capacity, and a wide voltage input range of 100Vp-p, it accurately measures small signals and is suitable for high-resistance areas, providing deeper and better results.
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) |
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) |
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 |
■ Investigating Ground Water
■ Bed Rock Examination
■ Geological Structure Delineation
■ Identification of Sand and Gravel Deposits
■ Examining Minerals
FAQ
Q1: What is the WDDS-3 digital resistivity meter?
A: The WDDS-3 digital resistivity meter is a new generation of DC resistivity equipment developed by Gold. It adopts 32-bit microcontroller technology and 24-bit A / D technology, making it highly accurate and reliable. It is designed for metal and non-metal mineral resources detection, city geophysical exploration, railway and bridge inspection, hydrology, and engineering geology exploration.
Q2: What are the key features of the WDDS-3 digital resistivity meter?
A: The WDDS-3 digital resistivity meter is light and flexible, with an advanced transmitter and receiver designed in one unit. It has a small size and is lightweight with a built-in 200V high-voltage power supply (only for WDDS-3), so you can easily cope with most of your survey work without the need for an additional bulky battery box. It has high-precision, with 6000W (1200V * 5A) power supply capacity, 100Vp-p of the wide voltage input range, and it provides highly accurate measurement of small signals, so that it can be used in high resistance areas, enabling you to obtain deeper and better measurement results.
Q3: What types of applications is the WDDS-3 digital resistivity meter suitable for?
A: The WDDS-3 digital resistivity meter is suitable for a wide range of applications, such as mineral resource detection, geophysical exploration, engineering geology, and hydrology exploration. It can be used for seeking ground water, inspecting dam base and flood protection levee for incipient faults, geothermal prospecting, and more.
Q4: Does the WDDS-3 digital resistivity meter have anti-interference function?
A: Yes, the WDDS-3 digital resistivity meter has an integrated electrical interference suppressor function, and it also has a super anti-interference of common-operation. The transmitting unit supports over-voltage protection.
