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| Place of Origin | chongqing,China |
| Brand Name | GOLD |
| Certification | CE, ISO |
| Model Number | WDJD-4A |
Multi-Function Digital DC Resistivity/IP Meter – Advanced Geophysical Exploration Tool
Description of Multi-Function Digital DC Resistivity/IP Meter – Advanced Geophysical Exploration Tool:
The WDJD-4A Multi-Function Digital DC Resistivity/IP Meter is a cutting-edge geophysical instrument designed for high-precision subsurface exploration. Built on the foundation of the WDJD-3A, this advanced model offers higher accuracy and more measurement parameters, making it ideal for metal and non-metal mineral resource exploration, urban geophysical surveys, and hydrological studies. With its enhanced anti-interference capabilities and diverse working modes, the WDJD-4A delivers reliable data even in complex electromagnetic environments.
Applications:
Mineral Exploration: Accurately locates metal and non-metal deposits.
Groundwater Detection: Identifies underground water sources for resource management.
Infrastructure Projects: Assesses subsurface conditions for dams, bridges, and railways.
Geothermal Exploration: Maps geothermal reservoirs for energy extraction.
Features of Multi-Function Digital DC Resistivity/IP Meter – Advanced Geophysical Exploration Tool:
High Precision: Measures voltage and current with 0.1 microvolt and 0.2 microampere resolution.
Advanced Anti-Interference: Suppresses industrial frequency interference by ≥80dB.
Multiple Working Modes: Supports resistivity, IP, and imaging modes for versatile applications.
Large Storage Capacity: Stores up to 1GB of data for extensive surveys.
Portable Design: Lightweight (≤4.4kg) and powered by a 12V rechargeable battery for up to 30 hours.
| 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 |
