·         Main function:

·         High resolution engineering geological exploration like factory foundations, highways, bridges, railways, civil engineering, hydrology, engineering, environmental.

·         high-resolution research, tomography and monitoring applications.

·         Coal mining gobs, caves of Custer area, geological disasters survey like landslides other geological disasters.

·         landslides and other geological disaster exploration.

·         Metal and non-metallic mineral resources exploration and geothermal exploration.

System Composition
One DAZ-6A multi-functional DC resistivity instrument as the survey and control unit in the system, equipped with a DUK-2A type 60-channel or 120-channel multiplex electrode switch manufactured by our factory, and cables, electrodes and other related accessories, together to form the resistivity imaging system.

Main advantages :

·          Easy for Operation: adopting all-digital automatic measurement,execute automatic compensation for spontaneous potential, drift and electrode polarization.

·          By adopting large screen LCD display in Chinese characters, more than fourteen types of wiring working mode can be directly displayed in high-density measurement mode;

·          in DZD-6A stand-alone mode, nine types of electrode arranging methods can be directly displayed; meanwhile, real-time curve display can be realized during working.

·          Multiple function in one machine: having four functions including long lead IP instrument, 2D high density resistivity meter, 2D high-density IP instrument, and medium-power short lead transmitter.

·          Extra-large Storage: In high-density mode, store the measured data at 120,000 measuring points; in DZD-6A stand-alone mode, the instrument can store the measured data at 4,800 measuring points;

·          there are 22 digits at each measuring points, provided with RS-232 serial interface, and the stored data can be transferred to the computer by appropriate software to launch digital interpretation for various methods.

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Specifications:
Measuring unit ( DZD-6A)

·          Measuring Current Accuracy: (at Ip>10mA)±5%, ±1 digit; (at Ip<10mA) ±1% ±Letter

·          Measuring Voltage Accuracy: (at Vp>10mV)±5%, ±1 digit; (at Vp<10mV)±1%, ±1 digit

·          Maximum Measuring Voltage: -6000mV~+6000mV

·          Measuring Voltage Resolution: 0.01 mV

·          Suppression on 50Hz Power Frequency: 80dB

·          Measuring Current: 0~5000 mA

·          Measuring Current Resolution: 0.01 mA

·          Input Impedance ≥50 MΩ

·          Measured Apparent Polarizability Accuracy: ±1%, ±1 digit

·          Maximum Power Supply Voltage 900V

·          Maximum Power Supply Current: 5A

·          Power Supply Pulse Width: 1~60 sec.

·          Weight: 8 kg

·          Volume: 305×200×202mm

DUK-2A Multiplex Electrode Converter

·          Operating Mode: 16-key keypad with 90 character LCD display combines to form man-machine dialogue operation.

·          Sopported manual configuration: Wenner, Schlumberger 1, Schlumberger 2, Dipole-Dipole, Combined Profiles, Differential, Pole-Pole, Triple-Pole Rolling,

·          Conversion Electrodes: 60 channels or 120 channels

·          Maximum Allowable Current: 2A

·          Maximum Withstand Voltage: 500V DC

·          Insulating Property: 500MΩ

·          Electroshock Break-over Resistance: smaller than 0.1Ω

·          Power Consumption: 50 mA (Standby)

·          Power Supply: 1# Dry Cell (or rechargeable battery with the same specification) 8 pcs.

·          Working Temperature: -10℃~ +50℃, 95%Rh

·          Weight: 7 kg (60 channels), 7.5kg (120 channels)

·          Volume: 305×200×202mm (60 channels), 324×200×245mm (120 channels)