Product Description

Main Application:

This resistivity meter is the new generation DC resistivity instrument using **-bit single chip computer technology and **-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 Features:
Integrating advanced transmitting and receiving technology in one instrument, this WDDS*2 resistivity meter is small-in-size and light-in-weight, with **0V high voltage internal battery (only for WDDS*2B), you can easily handle most exploration work without carrying heavy battery case.
With high supply voltage, wide measuring range, high measuring precision*****0w power supply, *8Vp-p voltage range, high small-signal measuring precision, this resistivity meter can well-functioned in high-resistance area and acquires deeper and better measuring data.
Using **-bit powerful single chip computer, this resistivity meter can speedy and intuitively do data collecting/controlling, collecting parameter setting, data display and storage, curve plotting all in English, make your field prospecting work fast and easy.
With 1GB (expandable) high-capacity RAM, this resistivity meter can store over ******0 groups of prospecting data (voltage, current, apparent resistivity, SP etc) with data power-off protection.
U-disk storing mode, when connecting to computer this resistivity meter will be auto-identified as U-disk storage, all the data can be transmitted and received directly through the USB port just as convenient as using a U-disk.
Electrode distance table : for all electrode arrangement you can pre-store **0 groups of different electrode distance constants into the resistivity meter storage, with one serial number you can call-out relevant electrode distance data to use or to reset, this function can help avoiding error which caused by repeatedly ting of one electrode distance constant.
Impeccable anti-interference technology*-using multilevel filtering signal enhancing, integrated electrical interference rejection (powerful anti-common/differential mode interference ability), provides high measuring precision.
Auto SP, drifting and pole polarization compensation, compensating range reaches ***0V.
 With customized diagnostic program, this resistivity meter can detect the fault location and damaged parts fast and accurately.
Imported full-sealed outer housing which has advantages such as damp-proof, dust-proof, long service life etc.

Main technical specification:
1.Receiving:
Voltage：***4V，**0.5% 1bit，*4bit A/D 
Maximum voltage sampling resolution：0.*1μV 
Input impedance：≥*0ＭΩ 
SP compensation range：***0V 
Current：3.5A，**0.5% **1bit，*4bit A/D 
Maximum current sampling resolution：0.*2μA 
*0Hz power frequency interference suppressing better than *0dB
2.Transmitting：
Maximum transmitting power：***0W 
Maximum supply voltage：*****0V（***0Vp-p） 
Maximum supply current：**3.5A（7Ap-p） 
Power supply pulse waveform：duty ratio: 1:1 bipolar
3.Others:
Display：**0×**0 LCD 
Storage capacity: 1GB (expandable)
Power supply: Internal battery (external *2V), provides continuous working hours more than *0 hours.
Main machine interface: A,B,M,N. HV DC, external power supply and charging port, RS***2 and USB port. 
Dimension: **0mm×**6mm×**5mm 
Weight: ≤4.2kg（WDDS*2）≤5.5kg  （WDDS*2B） 
Working temperature: **0℃～**0℃，*5％RH 
Storing temperature: **0℃～**0℃ 
Internal high power battery (only WDDS*2B): Maximum working power **0V.