Product Details

NEF-800 VLF Water Detector is more convenient as it realizes PC communication in latter data processing. It has many advantages like simple operation, easy to carry, stable data, strong anti-jamming ability, high accuracy, fast speed etc. Comparing to traditional electrical prospecting equipment, it is 10 times more quick while the weight is 10 times less, which saves large amount of time, manpower and materials for field survey. It is your optimal assistant in geophysical survey.

NEF-800 Natural VLF Water Detector main principle

NEF-800 Natural VLF Water Detector uses relative parameters like resistivity variation produced by natural electric field and different geologic substance to determine the geological abnormity we are seeking. Through the relative physical parameters variation like different conductivity between ore and non-ore object, it can get the relative information as ore vein direction, buried depth, thickness and deposit etc. In more than 20 years' practice, we gained outstanding achievement and customers' common praise.

NEF-800 Natural VLF Water Detector applications
1. 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.

2. Applied in underground water detect to meet the demand of drinking water, industrial usage and agricultural irrigation.

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

NEF-800 Natural VLF Water Detector main features

1. Fast and high efficiency:

Complete about 4000m profile measurement in one day to realize geological abnormality 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 low frequency signals in earth natural electric field as signal source, and the complete set weight is less than 5kg so easy to carry.

3. Easy operation:

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

4. Good precision and high accuracy:

Apply imported control module and filtering IC chip to do measurement, the data is high stable and accuracy, the resolution is up to 0.001mV, precision is ±1%, and fixed error of frequency is 1%.

5. Strong anti-jamming capability:

It has advanced anti-jamming technology and multiple anti-jamming designs. You can observe abnormity curves result with good repetition even in weak signal area, city, high electric jamming area and working area with other exterior interference 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
7. Remarkable effect:
Through the relative physical parameters variation like different conductivity between ore and non-ore object, it can get the relative information as ore vein direction, buried depth, thickness and deposit etc. In more than 20 years' practice, we gained outstanding achievement and customers' common praise.

NEF-800 Natural VLF Water Detector main technical parameters
1. Automatic noise reduction, super 5 shifts anti-jamming design, fit for various geological conditions.

2. 5 frequencies or 30 frequencies measurement synchronously.

3. Operating functions are all on the LCD screen, easy operation.

4. Automatic measurement, data storage and curves mapping. No need to record data and the data can be transferred to U disk directly..

5. It can store 5 frequencies measuring data of 30 curves and multiple frequencies data of 30 curves, the data and curves can be displayed.

6. Use film switch panel to make usage more stable and convenient, the appearance is beautiful.

7. Power supply: by large capacity chargeable lithium batteries.

8. Electrode test and power monitor function.

9. Measuring range: 0.001mV~355mV (auto range transfer)

10. Resolution: 0.001mV

11. Measuring voltage accuracy: ±1% ±1LSB

12. Measuring currency accuracy: ±1% ±1LSB

13. Input impendence: ≥50MΩ