China High Accuarcy Geophysical Electrical Tomography Ert Survey System Underground 2D Resistivity Imaging Equipment for Water Detector

High Accuarcy Geophysical Electrical Tomography ERT Survey System Underground 2D Resistivity Imaging Equipment for Water Detector making it economically possible to acquire the dense data sets needed to use electrical resistance tomography (ERT) for shallow-surface applications
Multi-electrode Resistivity instrument which includes transmitter, receiver and switching unit connected to current and measuring lines in a single heavy duty cable with waterproof enclosure
System Composition
DAZ-6A multi-functional DC resistivity instrument as the survey and control unit in the system
DUK-2A type 60-channel or 120-channel multiplex electrode switch
cables, electrodes and other related accessories, forming resistivity imaging system

Model & Name:
DZD-6A Multi-functional Direct Current ( Induced polarization ) Instrument
Max. Power Supply Voltage:
900V
Max. Power Supply Current:
5A
Voltage Measuring Range:
±6000mV
Voltage Measuring Accuracy:
(Vp>10mV) ±5%, ±1 digit; (Vp<10mV) ±1%, ±1 digit
Current Measuring Range:
0~5000mA
Measuring Current Resolution:
0.01mA
Current Measuring Accuracy:
Ip>10mA) ±5%, ±1 digit; (Ip<10mA) ±1%, ± 1 digit
Interference Suppression on 50Hz Power Frequency
Better than 80dB
Measured Apparent Polarizability Accuracy :
±1%, ±1 digit
Instrument Input Impedance:
≥50MΩ
Power Supply Pulse Width:
1~60s
Operating Temperature:
-10 °C ~50 °C , 95%Rh
Size:
305x200x202m