Application scope:

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

Performance parameters

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.