Small Light Digital DC geophysical resistivity meter electrical resistivity tomography groundwater water detector

Main Application

1. This Geophysical Resistivity Meter is small and light to carry. The Geo Resistivity Equipment main technique specifications and functions are move advanced than similar instruments abroad and inland can be applied in different conplex regions.

 

2. This digital resistivity meter applied widely in metal and non-metal mineral propecting, civil propecting, railway, bridge detecting, etc.

 

3. The geo resistivity equipment can also be applied in underground water, water reservoir dam foundation, jetty hidden trouble, and geothermal exploration.

Performance Features

1. Portability and flexibility: combining transmitter and receiver together, small and light. 
2. Real one machine and multi-function: voltage and current range and small signal accuracy improved greatly, it is fitted for rock sampling tester, large-power IP receiver, nomal resistivity tool, IP, water finder, 2D and 3D high-density electrical tool etc.
3. Multi-parameter measurement, wide application: voltage, current, apparent resitivity, SP, apparent chargability, metal factor, half life, attenuation, IP ratio, departure, IP spectrum. 
4. Blue technique, wireless remote control: Pocket PC controlled central unit by Bluetooth technique, remote control is effective within 10 m. All parameters and measurement display can be fulfilled easily wirelessly.

Widely Used Super digital Geophysical Resistivity Meter WDDS-2  Geo Resistivity Equipment Price
5. Pocket PC control, Powerful function: all Chinese pocket PC support the man machine interface and sampling control, parameters setting, data display and storge, graph plot, image making, Field works are very easy. 
6. Extendable easily: data sampling and storage are all controlled by pocket PC. Data management is easy and software is easy to be extended. 
7. Powerful pocket PC: beside the high hardware configuration, pocket PC is installed with many utility software. User can arrange the date, navigate the web via wireless net, and use WORD, EXCEL, PowerPoint, and Media Player for office and amusement. 
8. With double high-density resistivity cable port, cross-hole resistivity can be carried out without medium switcher. Measurement is concise and easy. 
9. Super wide range, high accuracy: voltage is as high as 64Vp-p, small signal measurement accuracy is high(voltage is less than 0.1mV and current is less 0.1mA with ±1% accuracy). Tool is fitted for high resistivity region; high-density can achieve good results. 
10. Complete anti-interface technique: use multi-stage filter and signal enhancement technique, integrate anti-interface funation, accuracy is high. 
11. Auto SP, shift and electrode compensation with range as high as ±10V. 
12. The panel has “infinite”pole for pole-pole and dipole-pole measurement. During dipole-pole measurement, ρsA,ρsB, and ρs can be measured automatically with high efficiency. 
13. Receiver has over-voltage over- current and AB open protection ability. 
14. Ground resitivity check: AB pole and MN pole can be checked at any time, easy and practically. 
15. Dignosis program can find the trouble with the tool quickly and accurately. 
16. Imported air proof box is water-proof, dust-proof, and long life. 
17. Flexiable control choice: the tool can be controlled with note PC for field work.

Widely Used Super digital Geophysical Resistivity Meter WDDS-2  Geo Resistivity Equipment Price

Technical Parameters

Receiving part

Voltage channel	±32V(24 bit A/D)
Measurement accuracy	Vp≥5mV,±0.2% ±1 character, 0.1mV≤Vp<5mV,±1% ±1 character
Input impedance	≥50MΩ
Apparent polarization accuracy	±1% ±1character
SP compensation range	±10V
Current channel	6A(24 bit A/D)
Measurement accuracy	Ip≥5mA,±0.2% ±1character, 0.1mA≤Ip<5mA,±1% ±1 character
As for 50Hz industrial interface(common and different mode) depression	Better than 80dB

 

Transmitter part

Maximum power	9000W
Maximum supply voltage	±1500V
Maximum supply current	±6A
Pulse width	1-60 seconds, duty rate 1:1

 

Others

Working temperature	-10℃~+50℃,95%RH
Storage temperature	-20℃~+60℃
Power supply	Built in 7.4V4Ah(or outside 12V), lasting for 20h
Main unit port	A,B,M,N, DC high voltage, outside battery,2 cable port, RS-232, blue tooth
Weight	≤4kg
Dimension	270mm×246mm×123mm