Geophysical Resistivity Meter Vertical Electrical Sounding for Ground Water Detection Exploration 
Specifications
Electronic Auto-Compensation Instrument is widely used in hydrology, environmental protection, engineering geophysical explore

DDC-8 Reactive Power Auto Compensation Controller

Main Applications and Features
Geophysical Resistivity Meter Vertical Electrical Sounding for Ground Water Detection Exploration

By utilizing the apparent resistivity parameters, it is widely used in hydrology, environmental protection, engineering geophysical exploration, metal and non-metal mineral resources exploration.
Microcomputer controlled, direct-reading resistivity, various electrode arranging mode, data protection against power-failure
This instrument applies to Electrical Prospecting such as Vertical Electrical Sounding, Electrical Profiling, Charging Method and Spontaneous Potential Method, etc. On ground and in trench.

Technical Specifications
Geophysical Resistivity Meter Vertical Electrical Sounding for Ground Water Detection Exploration

Maximum Power Supply Voltage: 700V
Maximum Power Supply Current: 3A
Voltage Measuring Range: ± 3000mV
Voltage Measurement Accuracy: ± 1.5%, ± 0.1 mV
Current Measuring Range: 0.1mA~3000mA
Current Measurement Accuracy: ± 1.5%, ± 0.1mA
SP Compensation Range: -1000mV ~ +1000mV
Instrument Input Impedance: >30MΩ
Working Temperature: -10° C~50° C
Volume: 244× 154× 237mm