GOLD WDDS-2 Geophysical Resistivity Meter

WDDS-2 Digital Earth Electrical Resistivity Meter is a new generation underground water detector, with function not only support SP survey but also VES sounding.

Application：
1.Geothermal prospecting with vertical electric sounding resistivity 
2.Metal and nonmetal mineral resources detection 
3.City geophysical exploration, railway and bridge inspection and so on
4.Hydrology and engineering geology as seeking for ground water, inspecting dam base and flood protection levee for incipient faults

Features for WDDS-2 Resistivity Meter
In 1D Vertical Electrical Sounding survey, WDDS-2 resistivity meter power can up to 3500W of power supply,can be emitted to allow excited pulse signals to reach deeper strata.  Prior to field testing, measurement array configurations and the electrode scanning parameters can be in putted into the monitoring host, thus reducing the time spent in field to enter the survey parameters and increase survey productivity.

Technical specification:
Receiving parts:
Voltage：+-24V，+-0.5% 1bit，24bit A/D 
Maximum voltage sampling resolution：0.01μV 
Input impedance：≥50ＭΩ
SP compensation range：+-10V 
Current：3.5A，+-0.5% +-1bit，24bit A/D 
Maximum current sampling resolution：0.02μA
50Hz power frequency interference suppressing better than 80dB

Transmitting parts：
Maximum transmitting power：3500W
Maximum supply voltage：+-1000V（2000Vp-p） Maximum supply current：+-3.5A（7Ap-p）
Power supply pulse waveform：duty ratio: 1:1 bipolar 

Others:
Display：160×160 LCD
Storage capacity: 1GB (expandable)
Power supply: Internal battery (external 12V), provides continuous working hours more than 20 hours. 
Main machine interface: A,B,M,N. HV DC, external power supply and charging port, RS-232 and USB port. 
Dimension: 270mm×246mm×175mm
Weight: ≤4.2kg（WDDS-2）≤5.5kg （WDDS-2B）
Working temperature: -10℃～+50℃，95％RH Storing temperature: -20℃～+60℃
Internal high power battery (only WDDS-2B): Maximum working power 200V.