The multifunctional electric water detector, also known as the electric water detector, is still the most economical, effective and widely used method among various water finding methods. The instrument is a special instrument with the most measuring parameters, the most complete functions and the most advanced performance in the field of electric water prospecting. It is widely used at home and abroad to search for various types of groundwater, such as bedrock water, fissure water, karst water, etc. It is also used for exploration of metallic and non-metallic mineral resources, urban geophysical exploration, railway bridge exploration, hydrology and engineering geological exploration, determination of hidden dangers of dam foundation and flood control levees, etc. It can also be used for geothermal exploration.

Main features and functions

Set transmitting, receiving in one, light and flexible, high measurement accuracy.

The whole instrument is small in size, low in power consumption, and has many functions. If the operator has no operation within 10 minutes, the instrument will automatically turn off the power.

The receiving part has instantaneous overvoltage input protection, while the transmitting part has overvoltage, overcurrent and AB open circuit protection.

Multiple parameters, multiple methods -- the instrument can directly give the natural potential, apparent resistivity, apparent polarizability, semi-decay, attenuation, excitation ratio, deviation degree, and comprehensive parameters for water prospecting. When working with quadratic time difference method, the instrument can also give quadratic time difference parameters and quality discrimination parameters.

The measured parameters of the whole line can be plotted as curves on the large-screen display, and the measured results are intuitive and clear.

All Chinese character touch panel with Chinese character menu prompt, operation is very convenient.

The working cycle can be set at will, and there are 9 common working methods in the field to choose the input and calculation functions of the polar distance constant and device constant.

Polar distance constant table -- for all devices, can be stored in advance up to 100 groups of different polar distance constant, so as to avoid the same polar distance constant repeated input may bring the input error, only input a number, you can call out the corresponding group polar distance constant for use or reset.

Grounding resistance inspection -- can be at any time to check the electrode grounding, convenient and practical.

Ultra-large data storage -- measurement parameters are stored together with the polar distance constant, allowing the instrument to store up to 2,250 data points.

Instrument setting parameters and measurement data have power loss protection ability.

Equipped with rs-232c interface can work with other microcomputers online.

Diagnostic program can quickly and accurately determine the location of the fault and the main damage device.

Fully sealed structure with waterproof, dustproof, long life and other advantages.

Main technical indicators

1. Receiving part:

Voltage channel: ±6V

Measurement accuracy: when Vp≥10mV, ±0.5% ±1 word; when Vp < 10mV, ±1% ±1 word

Input impedance: > 50 m Ω

Apparent polarizability measurement accuracy: ± 1% ±1 word

Sp compensation range: ±1V

Current channel: 5A

Measurement accuracy: when Ip≥10mA, ±0.5% ±1 word; when Ip < 10mA, ±1% ±1 word

The suppression of 50Hz power frequency interference (common mode interference and differential mode interference) is better than 80dB

2. Launch part:

Maximum supply voltage: ±900V

Maximum supply current: ±5A

Power supply pulse width: 1 ~ 60 seconds, duty cycle is 1:1

3. The other:

Operating temperature: -10℃ ~ +50℃, 95% RH

Storage temperature: -20℃ ~ +60℃

Instrument power supply: no. 1 battery (or nickel-cadmium battery of the same specification) 8

Machine current: ≤55mA

Weight: 7 kg or less

Size: 310 mm * 210 mm * 210 mm