1. Product Introduction

This instrument refers advanced technology home and abroad,
solves great subjects on shielding and selective signal processing to amplify
in complex natural electric field, and also does multiple anti-jamming as well.

It is similar to traditional resistivity prospector
generally, the biggest difference is applying natural electric as field source
and removing heavy power supply, the total set is no more than 5kg. Its main
features are simple operation, easy to operate, high accuracy, fast speed,
flexible array etc. The speed is 10 times more than traditional DC resistivity
prospector, and it is your useful assistance in ore prospecting.

It has
More than 20 years’ practice proves that it is a state-of-the-art portable
earth resistivity meter and gains customers’ common praise.

2. Principle

DSHD-C Natural VLF water
detector uses relative parameters like resistivity
variation produced by natural electrical field and different geologic
structures(underground water is benign conductor)to determine the water(bedrock
fracture water, carst water, pebble bed water etc.) we are seeking. The
instrument can realize relative
information like water location, depth and water outflow etc. Comparing to
other water detectors, it has obvious advantages: fast, high accuracy, check
full information, portable, simple operation and so on.

3. Main
Function

Widely used in underground water detection to meet the demand of
drinking water, industrial usage and agricultural irrigation.

Widely used in metal ore prospecting,
non-metal ore's detailed and general survey to decrease the venture of mineral
investment and improve exploration success rate and scientificalness.

Widely used in engineering geological
prospecting, disaster geological detect, coal goaf, archaeological mining, city
exploration, non-metal pipe survey as well.

4. Main
Advantages


1. Fast and high efficiency:

Complete about 4000m profile measurement in one day to realize geological
abnormity in different depth, the prospecting speed and efficiency is improved
about 10 times more than traditional resistivity method.


2. Easy to carry:

Without heavy power supply, it uses earth natural electromagnetic field as
signal source, and the weight of complete set is less than 5kg so easy to carry
and use.


3. Easy to operate:

Equipment is automatically controlled by micro PC. You can learn its operation
in 10 min. It will take 2h for person without prospecting experience to finish
the relative training.


4. Good precision and high
accuracy:

It will do measurement with resolution up to 0.001mV, high precision ±50%.


5. Strong anti-jamming capability:

You can get good curves result even in noisy road and high electric jamming
area for signal via frequency selector and digital processing.

6. Flexible array—traditional and unique
array method:

It has multi-array measurement method: traditional and original electrode array
method, which has good geological effect and easy explanation. It makes big
achievement in solving problems about the direction, depth and thickness of ore
vein.

5. Technical
Parameters


1.Automatic noise reduction, super anti-jamming.

2. Measurement of 3 frequency (25Hz,
67Hz, 167Hz) or 30 frequencies measuring synchronously.

3.
Operation functions are all displayed on LCD, you can see them directly.

4.
Automatic measurement, data storage and curves mapping. Data record is no need.
The data will not loss even power off.

5. The data storage capacity: 30
measured curves in three frequencies and 30 measured curves in multi-frequencies
measurement.

6.
Curves and data can be displayed; you can also transmit data by USB port and
map or print in computer.

7.
Rechargeable batteries to supply power.

8.Electrode detection and power
monitoring function

9.Measuring range: 0.001mV~255mV
(exchange range automatically)

10.Measurement resolution: 0.001mV

11.Measurement accuracy: ± 5% ± 3 bytes

12.Input impedance: ≥ 10MΩ

13.Whole operating temperature: -10
℃~+50 ℃

14.Working Humidity: 95%

15.Whole weight: 1.98Kg (batteries
excluded), size: 24CM*13CM*16CM