FunctionGeneral resistivity/IP soundingMulti-electrode 2D/3D resistivity imagingMulti-electrode 2D IP imagingRock sample testWork as receiver in large power IP systemApplicationsUnderground water inspectionEnergy resource prospectingCity geophysical explorationRailway and bridge inspecting Metal and nonmetal mineral resources surveyEngineering geologyGeothermal field survey.SpecificationsGeophysical instruments and ground water detection equipmentReceiving part:voltage channel: ±32V24 bitA/Daccuracy: as Vp5mV, ±0.2% ±1 character as 0.1mVVp5mV, ±1% ±1 character Input impedance: 50© Apparent polarization accuracy: ±1±1character SP compensation range: ±10V Current channel: 6A24bitA/Dmeasurement accuracy: as Ip5mA, ±0.2% ±1character as 0.1mAIp5mA, ±1% ±1character As for 50Hz industrial interfacecommon and different modedepression is better than 80dBTransmitter partmaximium power: 7200Wmaximium supply voltage: ±1200Vmaximium supply current: ±6Asupply current width :160s, duty rate 1:1