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| Categories | Geophysical Exploration Instrument | 
|---|---|
| Brand Name: | GOLD | 
| Model Number: | WDJD-4A | 
| Certification: | CE, ISO | 
| Place of Origin: | chongqing,China | 
| MOQ: | 1 set | 
| Price: | Negotiated | 
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union | 
| Supply Ability: | 1 set per 5 days | 
| Delivery Time: | 5-8 work days | 
| Packaging Details: | wooden case | 
| Warranty: | 1 year | 
| Customized support: | OEM, ODM | 
| Material: | metal | 
| Product name: | Multi-Function Digital DC Resistivity/IP Meter | 
| Application: | geophysical exploration | 
| Function: | shallow surface geo-detection | 
| Range: | 1~200mm | 
| Chnanel number: | 1 | 
| Company Info. | 
| Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
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 | 
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