Function and purpose

The JW-6A buried pipeline anti-corrosion layer detection leak detector can easily detect the position, direction, depth, location of anti-corrosion layer damage points, and leak size of buried pipelines without excavating the covering soil.

characteristic

1. Large capacity built-in lithium battery, charging without manual control;

2. Automatic switching between DC power supply and AC power supply;

3. The instrument adopts a high anti-interference circuit and is suitable for the survey and maintenance of urban pipeline networks.

4. Automatic adjustment function for instrument protection.

5. The instrument circuit adopts modular design and three proof design.

Specification

1. Technical parameters of the transmitter:

① Output power:> 25W, automatic adjustment

② Transmission signal method: low-frequency modulation signal

③ Output impedance matching: 0-100 Ω, automatic matching

④ Launch distance: 0.05-7Km, can gradually move beyond 7Km

⑤ Working power supply: 12.6V large capacity built-in lithium battery 8800mAh

⑥ Working temperature: - 20℃～ +50℃

⑦ Weight: 2.8Kg (including battery)

⑧ Dimensions: 255 × 225 × 100mm

2. Technical parameters of the probe:

① Sensitivity: 0.1mV;

② Depth measurement range: ≤ 7m；

③ Working power supply: 12.6V lithium battery 2200mAh;

④ Working temperature: - 20℃ ～ +50℃

⑤ Weight: 0.6Kg (including battery)

⑥ Dimensions: 165 × 145 × 68mm

3. Technical parameters of the detector:

① Leak detection accuracy: ≥ 0.25mm2

② Position deviation: ＜ 10cm

③ Working power supply: 12.6V lithium battery 2200mAh;

④ Working temperature: - 20℃ ～ +50℃

⑤ Weight: 0.6Kg (including battery)

⑥ Dimensions: 165 × 145 × 68mm

Detection principle and method

Principles of probing, direction finding, and depth measurement

The transmitter sends specific electromagnetic wave signals to the underground pipeline, and detects its position, direction, and depth by detecting the magnetic field of the underground pipeline.

Leak detection principle: The transmitter sends a specific electromagnetic wave signal to the underground pipeline, forming a loop with the ground at the point where the anti-corrosion layer of the underground pipeline is damaged. The signal is strong directly above the damaged point, and based on this principle, the damaged point of the pipeline anti-corrosion layer is identified.

Leak detection method: We use the "human body capacitance" method. It uses the human body as the sensing element of the detector to detect along the pipeline. When the detector reaches the vicinity of the leakage point, the detector begins to react. When it reaches directly above the leakage point, the sound of the horn sounds and the numerical display is large, thus accurately finding the leakage point.