Main Application:

This resistivity meter is the new generation DC resistivity instrument using 32-bit single chip computer technology and 24-bit A/D technology. Widely used in metal and non-metal resources exploration, civil geophysical prospecting, railway and bridge prospecting etc, it also can be used in hydrology and engineering geology prospecting such as underground water exploration, dam foundation setting out and dam hidden danger exploration etc. This instrument can be applied to geothermal prospecting.

Main technical specification:

1.Receiving:

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

2.Transmitting：

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

3.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.