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WDJD-4A
GOLD
Product Description
Multi-function Digital DC Resistivity & Induced Polarization Testing Equipment
WDJD-4A multi-function digital DC induced polarization instrument is an advanced instrument integrating 32-bit single-chip microcomputer technology and 24-bit A/D technology, designed for the field of geological exploration. It can simultaneously complete resistivity and induced polarization measurements, and is widely used in metal and non-metal mineral resource exploration, urban geophysical exploration, and railway bridge exploration. In addition, the instrument can also be used for hydrological and engineering geological exploration tasks such as finding groundwater sources, determining the location of hidden dangers in reservoir dam foundations and flood control embankments, and even plays an important role in geothermal exploration.
WDJD-4A is light and flexible, with a small size and light weight, making it easy to carry and operate. Its voltage and current range and small signal measurement accuracy have been greatly improved, making the instrument capable of measuring in a variety of complex environments. At the same time, the instrument has ultra-large power supply, ultra-wide range and ultra-high precision, with a power supply capacity of up to 6600W and an ultra-wide voltage input range of 48Vp-p, ensuring that high-quality and accurate measurement results can be obtained even in high-resistance areas.
The all-Chinese control interface makes the acquisition parameter setting, data display and storage, various curve drawing and other operations quick and intuitive, greatly reducing the difficulty of field measurement work. The built-in large-capacity data storage can store more than 5,000,000 sets of measurement values, and the data will not be lost when the power is off. It supports exporting stored data through the USB interface, which is extremely convenient to use. The perfect anti-interference technology and automatic compensation function further improve the accuracy and stability of the measurement. The imported fully sealed box design makes it moisture-proof, dust-proof, and long-life, and is suitable for geological exploration work in various harsh environments.
Technical specification:
Receiving part | |
Voltage precision | ±24V, ±0.4% ±1LSB, 24 bit A/D |
Input impedance | ≥50MΩ |
Apparent polarizability precision | ±1% ±1LSB |
SP compensation range | ±10V |
Current channel | 6A, ±0.4% ±1LSB, 24 bit A/D |
Resolution | Voltage: 0.1 micro volt, Current: 0.2 micro ampere |
Suppression | ≥80dB for 50Hz industrial frequency(common mode interference or differential mode interference) |
Transmitter part | |
Maximum power | For general Res/IP sounding, 6600W. For mulit-eletrode Res imaging, 1125W, limited by WDZJ-4 switcher For Res cable, 1350W For IP cable, 2400W |
Maximum supply voltage | For general Res/IP sounding, ±1100V(2200V peak to peak) For multi-electrode Res/IP imaging, 450V DC(limited by WDZJ-4 switcher) |
Maximum supply current | For general Res/IP sounding, ±6A For multi-electrode Res imaging, 2.5A DC(limited by WDZJ-4 switcher) |
Pulse width | 1~60s, duty rate 1:1 |
Others | |
Display | 160*160 dot matrix LCD |
Storage | ≤1GB |
Working temperature | -10℃~+50℃, 95% RH |
Storage temperature | -20℃~+60℃ |
Instrument power | Internal 12V 9Ah rechargeable battery, lasts for 30 hours(or 12V external power supply) |
Weight | ≤4.4kg |
Dimension(L*W*H) | 270mm*246mm*175mm |
Application:
1. By carrying out Res and IP survey at the same time with high accuracy, fast speed, high reliability and excellent expandability.
2. WDJD-4 is widely usde in metal and non-metal mineral resources exploration, civil geophysical exploration, railway/ bridge prospecting etc, also can be used in ground water detecting, dam foundation/ flood-control dyke hidden danger locating and hydrological, engineering, geothermal prospection.
Standard configuration list of WDJD-4A:
No. | Details | Qty |
1 | WDJD-4 mainframe | 1 set |
2 | USB communication line | 1 set |
3 | Charger | 1 PC |
4 | 12V power input line | 1 PC |
5 | Instrument backpack | 1 PC |
6 | Windows software U Disk | 1 PC |
7 | Operational manual | 1 PC |
8 | Unpolarized electrodes | 1 Pair |
9 | Iron electrodes | 10 PCs |
Product Details