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External Size: 47*30*56CM
Type: WDDS-2
Protection Level: IP65
Brand Name: Gold
Color: red
Place of Origin: China (Mainland)

Specifications

Geophysical Instrument and Digital DC Earth Resistivity Meter WDDS-2 for ground water  detector
Geophysical Instrument and Digital DC Earth Resistivity Meter WDDS2 for ground water detector

1.Receiver:   Geophysical Instruments Resistivity Meter

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.Transmitter: Geophysical Instruments Resistivity Meter

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:Geophysical Instruments Resistivity Meter

Display:

160160 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:  

270mm246mm175mm

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.


WDDS-2 Geophysical Instruments Resistivity Meter is a new generation of DC resistivity instrument which is based on a series of advanced electrical equipment for resistivity sounding survey, and adopts 32-bit microcontroller technology and 24-bit A / D technology development.

1.RS-232 serial interface enables the instrument to communicate with other computers.

2.Monitoring the dynamic variation of MN electrode potential through inspecting its ground resistance.

3.Receiver supports transient over-voltage protection for input voltage; transmitter supports over-voltage protection, over-current protection and AB open-circuit protection.

4.Automatically displaying the resistivity relative error between the current measuring result and the last measuring result.

5.Able to store measuring data for more than 150,000 times, including voltage, current, resistivity, relative error, SP, array constant, measuring point and so on.