Electric Geophysical Ground Resistivity Survey Instrument, Earth Resistivity Meter
Utilizing the apparent resistivity parameters, it is widely used in hydrology, environmental protection, engineering geophysical exploration, metal and non-metal mineral resources exploration.
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.
Microcomputer controlled, direct-reading resistivity, various electrode arranging mode, data protection against power-failure.
Maximum power supply voltage: 700V
Maximum power supply current: 3A
Voltage measuring range: ±3000mV
Voltage measurement accuracy: ±1.5%, ±0.1mV
Current measuring range: 0.1mA~3000mA
Current measurement accuracy: ±1.5%, ±0.1mA
Spontaneous potential compensation range: -1000mV~+1000mV
Instrument input impedance: >30M ohm
Working temperature: -10C Celcius ~50C Celcius