geophysical Exploration Multi-electrode Survey System, Resistivity Imaging System

 Geophysical Exploration Multi-electrode Survey System, Resistivity Imaging System

1. Water resources, metal and nonmetal mineral resources detection

2. City geophysical exploration, railway and bridge inspection

3. Hydrology and engineering geology as inspecting dam base and flood protection levee for incipient faults

4. Geothermal prospecting

Function:  

1. 1D resistivity sounding

2. 1D induced polarization sounding

3. 2D Electrical resistance tomographic

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

Easy for operation: the instrument adopts all-digital automatic measurement, thus can execute automatic compensation for spontaneous potential, drift and electrode polarization.

By adopting large screen LCD display in English characters, more than fourteen types of wiring working modes can be directly displayed in high-density measurement mode; in DZD-6A stand-along mode, nine types of electrode arranging methods can be directly displayed; meanwhile, real-time curve display can be realized during working.

System composition

One DZD-6A multi-functional DC resistivity instrument as the survey & control unit in the system, equipped with DUK-2A type 60 channels or 120 channels multiplex electrode converter, cables, electrodes and other related accessories, together to form the resistivity imaging system.

DZD-6A survey & control unit

Measuring voltage range: -6000mV~+6000mV  Measuring voltage resolution: 0.01mV

Measuring voltage accuracy: (at Vp>10mV)±5%, ±1 digit; (at Vp>10mV)±1%, ±1 digit

Measured apparent polarizability accuracy: ±1%, ±1 digit

Measuring current range: 0~5000mA          Measuring current resolution: 0.01mA

Measuring current accuracy: (at Ip>10mA)±5%, ±1 digit; (at Ip>10mA)±1%, ±1 digit

Input impedance: >50M ohm

Interference suppression on 50Hz power frequency: better than 80dB

Maximum power supply voltage: 900V         Maximum power supply current: 5A

Power pulse width: 1-6 seconds, duty cycle 1:1

Working temperature: -10C Celcius ~ +50C Celcius, 95Rh

Weight: 8 kg

Volume: 305*200*202mm

DUK-2A multiplex electrode converter

Conversion electrodes: 60 channels or 120 channels

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

Maximum allowable current: 2A

Maximum withstand voltage: 500V DC

Insulating property: 500M ohm

Working temperature: -10C Celcius ~ +50C Celcius

Weight: 7kg (60 channels)/ 7.5kg (120 channels)

Volume: 305*200*202mm (60 channels)/ 324*200*245mm (120 channels)